{"id":370,"date":"2025-04-15T09:10:27","date_gmt":"2025-04-15T09:10:27","guid":{"rendered":"https:\/\/www.coefficientfriction.com\/?page_id=370"},"modified":"2025-04-16T01:45:55","modified_gmt":"2025-04-16T01:45:55","slug":"astm-d4917","status":"publish","type":"page","link":"https:\/\/www.coefficientfriction.com\/ko\/astm-d4917","title":{"rendered":"ASTM D4917"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"370\" class=\"elementor elementor-370\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e87c6b2 e-flex e-con-boxed e-con e-parent\" data-id=\"e87c6b2\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-d087c52 e-con-full e-flex e-con e-child\" data-id=\"d087c52\" data-element_type=\"container\" data-settings=\"{&quot;animation&quot;:&quot;none&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d9f31fd elementor-invisible elementor-widget elementor-widget-image\" data-id=\"d9f31fd\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;zoomIn&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"600\" height=\"200\" src=\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/04\/ASTM-D4197.webp\" class=\"attachment-large size-large wp-image-372\" alt=\"ASTM D4197\" srcset=\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/04\/ASTM-D4197.webp 600w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/04\/ASTM-D4197-300x100.webp 300w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/04\/ASTM-D4197-18x6.webp 18w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-60fbb6b e-con-full e-flex e-con e-child\" data-id=\"60fbb6b\" data-element_type=\"container\" data-settings=\"{&quot;animation&quot;:&quot;none&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0e3633c elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"0e3633c\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;zoomIn&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\uc218\ud3c9\uba74 \ubc29\ubc95\uc758 \uc815\uc801 \ubc0f \ub3d9\uc801 \ub9c8\ucc30 \uacc4\uc218 \uc2dc\ud5d8 \ubc29\ubc95<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a73bac6 elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"a73bac6\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"\" data-start=\"499\" data-end=\"1017\">\uc778\uc1c4, \ubcc0\ud658 \ubc0f \ud3ec\uc7a5 \uc791\uc5c5\uc5d0\uc11c \ucd5c\uc801\uc758 \uc131\ub2a5\uc744 \ubcf4\uc7a5\ud558\ub824\uba74 \uc885\uc774\uc758 \ub9c8\ucc30 \uac70\ub3d9\uc744 \uc774\ud574\ud558\ub294 \uac83\uc774 \ud544\uc218\uc801\uc785\ub2c8\ub2e4. <strong data-start=\"643\" data-end=\"657\">ASTM D4917<\/strong> \ub294 \ud45c\uc900\ud654\ub41c \uce21\uc815 \uc808\ucc28\uc5d0 \ub300\ud55c \uac1c\uc694\ub97c \uc124\uba85\ud569\ub2c8\ub2e4. <em data-start=\"710\" data-end=\"754\">\uc815\uc801 \ubc0f \uc6b4\ub3d9 \ub9c8\ucc30 \uacc4\uc218<\/em> \ucf54\ud305\ub418\uc9c0 \uc54a\uc740 \uc778\uc1c4 \ubc0f \ud544\uae30 \uc6a9\uc9c0\ub97c \uc0ac\uc6a9\ud558\uc5ec \ud488\uc9c8 \uad00\ub9ac \uc804\ubb38\uac00\uac00 \uc885\uc774\uac00 \uc790\uccb4 \ub610\ub294 \uc6c0\uc9c1\uc774\ub294 \ub2e4\ub978 \uc7ac\ub8cc\uc640 \uc0c1\ud638 \uc791\uc6a9\ud558\ub294 \ubc29\uc2dd\uc744 \uacb0\uc815\ud560 \uc218 \uc788\ub3c4\ub85d \uc548\ub0b4\ud569\ub2c8\ub2e4.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0364755 e-flex e-con-boxed e-con e-parent\" data-id=\"0364755\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f673fbc elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"f673fbc\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">ASTM D4917 \uc911\uc694\ub3c4 \uc885\uc774 \ub9c8\ucc30 \uacc4\uc218 \ud14c\uc2a4\ud2b8<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-156f03e elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"156f03e\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"\" data-start=\"1079\" data-end=\"1532\">ASTM D4917\uc740 <strong data-start=\"1101\" data-end=\"1128\">\uc218\ud3c9\uba74 \ubc29\ubc95<\/strong> \uc885\uc774\uc758 \ubbf8\ub044\ub7fc \uc800\ud56d\uc744 \ud3c9\uac00\ud558\uae30 \uc704\ud574 \ud2b9\ud788 <strong data-start=\"1187\" data-end=\"1206\">\ucf54\ud305\ub418\uc9c0 \uc54a\uc740 \uc6a9\uc9c0<\/strong>\ub97c \uc2e4\uc81c \uc0ac\uc6a9 \uc870\uac74\uc5d0\uc11c \ud14c\uc2a4\ud2b8\ud569\ub2c8\ub2e4. \uc774 \ud14c\uc2a4\ud2b8\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uacf5\uc815 \uc911\uc5d0 \uc885\uc774 \uc2dc\ud2b8\uc5d0 \uc791\uc6a9\ud558\ub294 \ud798\uc744 \uc2dc\ubbac\ub808\uc774\uc158\ud558\ub3c4\ub85d \uc124\uacc4\ub418\uc5c8\uc2b5\ub2c8\ub2e4. <strong data-start=\"1324\" data-end=\"1373\">\uc778\uc1c4, \ubcf5\uc0ac\uae30 \uacf5\uae09 \ubc0f \ud3ec\uc7a5<\/strong>. \uc77c\uad00\ub41c <strong data-start=\"1397\" data-end=\"1427\">\uc2dc\ud2b8 \uac04 \uc0c1\ud638 \uc791\uc6a9<\/strong>\uc81c\uc870\uc5c5\uccb4\uac00 <strong data-start=\"1460\" data-end=\"1504\">\uc81c\ud488 \ubb34\uacb0\uc131, \uae30\uacc4 \ud638\ud658\uc131<\/strong>\ubc0f \ucd5c\uc885 \uc0ac\uc6a9\uc790 \ub9cc\uc871\ub3c4.<\/p><p class=\"\" data-start=\"1534\" data-end=\"1860\">\ub9c8\ucc30 \ud2b9\uc131\uc740 \uc6a9\uc9c0\uac00 \uc7a5\ube44\ub97c \uc5bc\ub9c8\ub098 \uc27d\uac8c \ud1b5\uacfc\ud558\ub294\uc9c0\uc5d0 \uc9c1\uc811\uc801\uc778 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4. COF\uac00 \ub108\ubb34 \ub0ae\uc73c\uba74 \uc774\uc911 \uae09\uc9c0\uac00 \ubc1c\uc0dd\ud560 \uc218 \uc788\uace0, \ub108\ubb34 \ub192\uc73c\uba74 \uc6a9\uc9c0 \uac78\ub9bc\uc774\ub098 \uc624\uae09\uc9c0\uac00 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. ASTM D4917\uc740 \ub450 \uac00\uc9c0 \ubb38\uc81c\ub97c \ubaa8\ub450 \ud574\uacb0\ud569\ub2c8\ub2e4. <strong data-start=\"1737\" data-end=\"1771\">\uc885\uc774 \uc6b4\ub3d9 \ub9c8\ucc30 \ud14c\uc2a4\ud2b8<\/strong> \uadf8\ub9ac\uace0 <strong data-start=\"1776\" data-end=\"1809\">\uc885\uc774 \uc815\uc801 \ub9c8\ucc30 \ud14c\uc2a4\ud2b8<\/strong> \uc2e4\uc6a9\uc801\uc778 \uc808\ucc28\uc640 \uc138\ubd80 \uc9c0\uce68\uc774 \ud3ec\ud568\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-38e9bd9 elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"38e9bd9\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">ASTM D4917 \ub9c8\ucc30 \uacc4\uc218 \ud14c\uc2a4\ud2b8 \uc808\ucc28<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b4a43e8 e-con-full e-flex e-con e-child\" data-id=\"b4a43e8\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-949eee6 elementor-widget__width-inherit elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"949eee6\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInLeft&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"\" data-start=\"1914\" data-end=\"2019\">ASTM D4917\uc5d0 \ub530\ub77c \ub9c8\ucc30 \ud14c\uc2a4\ud2b8\ub97c \uc218\ud589\ud558\ub824\uba74 \uc0d8\ud50c\uc774 \ub2e4\uc74c\uacfc \uac19\uc544\uc57c \ud569\ub2c8\ub2e4. <strong data-start=\"1983\" data-end=\"2003\">\uc808\ub2e8 \ubc0f \uc900\ube44<\/strong> \uc815\ubc00\ud558\uac8c:<\/p><ul><li data-start=\"2023\" data-end=\"2149\">For <strong data-start=\"2027\" data-end=\"2052\">\uae30\uacc4 \ubc29\ud5a5 COF<\/strong>\uc2dc\ud3b8\uc740 \ub354 \uae34 \uce58\uc218(215mm x 130mm)\uc5d0 \ub9de\ucdb0 \uacb0 \ubc29\ud5a5\uc774 \uc815\ub82c\ub41c \uc0c1\ud0dc\ub85c \uc808\ub2e8\ub429\ub2c8\ub2e4.<\/li><li data-start=\"2023\" data-end=\"2149\">For <strong data-start=\"2156\" data-end=\"2187\">\uae30\uacc4 \uac04 \ubc29\ud5a5 COF<\/strong>\ub97c \ub204\ub974\uba74 \uace1\ubb3c\uc774 \uc9e7\uc740 \ucabd\uc744 \ub530\ub77c \ud750\ub985\ub2c8\ub2e4.<\/li><li data-start=\"2023\" data-end=\"2149\">\uc0ac\uc804 \ucee8\ub514\uc154\ub2dd \ubc0f \ud14c\uc2a4\ud2b8\ub294 ASTM D685\uc5d0 \uc815\uc758\ub41c \ub300\ub85c \ud1b5\uc81c\ub41c \ud658\uacbd\uc5d0\uc11c \uc218\ud589\ud574\uc57c \ud569\ub2c8\ub2e4.<\/li><\/ul><p class=\"\" data-start=\"2327\" data-end=\"2654\">\uc2dc\ud3b8\uc740 \ud55c \uc30d\uc73c\ub85c \ubc30\uc5f4\ub418\ub294\ub370, \ud558\ub098\ub294 \uc218\ud3c9 \ud45c\uba74\uc5d0 \uc7a5\ucc29\ub418\uace0 \ub2e4\ub978 \ud558\ub098\ub294 <strong data-start=\"2423\" data-end=\"2431\">\uc370\ub9e4<\/strong>-\ub97c \uc0ac\uc6a9\ud558\uc5ec \ud14c\uc2a4\ud2b8\ud588\uc2b5\ub2c8\ub2e4. <strong data-start=\"2451\" data-end=\"2489\">\uc815\uc18d \uc6b4\ub3d9 \uc18d\ub3c4 \uae30\uae30<\/strong>. . <strong data-start=\"2495\" data-end=\"2509\">\uc815\uc801 COF<\/strong> \ub294 \ub3d9\uc791\uc744 \uc2dc\uc791\ud558\ub294 \ub370 \ud544\uc694\ud55c \ud798\uc73c\ub85c \uae30\ub85d\ub418\uace0 <strong data-start=\"2572\" data-end=\"2587\">\uc6b4\ub3d9 COF<\/strong> \ub97c 130mm \uac70\ub9ac\uc5d0\uc11c \uc548\uc815\uc801\uc73c\ub85c \ubbf8\ub044\ub7ec\uc9c0\ub294 \ub3d9\uc548\uc758 \ud3c9\uade0 \ud798\uc73c\ub85c \uacc4\uc0b0\ud569\ub2c8\ub2e4.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-768d61b e-con-full e-flex e-con e-child\" data-id=\"768d61b\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e43e1f1 elementor-widget__width-inherit elementor-invisible elementor-widget elementor-widget-video\" data-id=\"e43e1f1\" data-element_type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/NUgXENOz8J0&quot;,&quot;autoplay&quot;:&quot;yes&quot;,&quot;play_on_mobile&quot;:&quot;yes&quot;,&quot;mute&quot;:&quot;yes&quot;,&quot;loop&quot;:&quot;yes&quot;,&quot;_animation&quot;:&quot;fadeInRight&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f5aa253 elementor-invisible elementor-widget elementor-widget-image\" data-id=\"f5aa253\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInRight&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.coefficientfriction.com\/ko\/\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"600\" height=\"200\" src=\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/03\/ASTM-D1894-1.webp\" class=\"attachment-large size-large wp-image-77\" alt=\"ASTM D1894\" srcset=\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/03\/ASTM-D1894-1.webp 600w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/03\/ASTM-D1894-1-300x100.webp 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9d958da e-flex e-con-boxed e-con e-parent\" data-id=\"9d958da\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5055911 elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"5055911\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\uc885\uc774 \ub9c8\ucc30 \uacc4\uc218 \ud14c\uc2a4\ud2b8 \ubc29\ubc95 - \uacc4\uc0b0<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7cac45b elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"7cac45b\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"\" data-start=\"2720\" data-end=\"2784\">ASTM D4917\uc740 COF \uac12\uc744 \uacc4\uc0b0\ud558\ub294 \uac04\ub2e8\ud55c \uacf5\uc2dd\uc744 \uc9c0\uc815\ud569\ub2c8\ub2e4:<\/p><ul data-start=\"2786\" data-end=\"2915\"><li class=\"\" data-start=\"2786\" data-end=\"2852\"><p class=\"\" data-start=\"2788\" data-end=\"2852\"><strong data-start=\"2788\" data-end=\"2807\">\uc815\uc801 COF(\ubbf8\uad6d)<\/strong> = \uc6c0\uc9c1\uc784\uc744 \uc2dc\uc791\ud558\ub294 \ud798 \/ \uc370\ub9e4 \ubb34\uac8c<\/p><\/li><li class=\"\" data-start=\"2853\" data-end=\"2915\"><p class=\"\" data-start=\"2855\" data-end=\"2915\"><strong data-start=\"2855\" data-end=\"2875\">\ud0a4\ub124\ud2f1 COF(\uc601\uad6d)<\/strong> = \ud3c9\uade0 \uc2ac\ub77c\uc774\ub529 \ud798 \/ \uc370\ub9e4 \ubb34\uac8c<\/p><\/li><\/ul><p class=\"\" data-start=\"2917\" data-end=\"3149\">\uac01 \uacb0\uacfc\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ud1b5\uacc4\uc801 \uc720\uc758\uc131\uc744 \uc704\ud574 5\uac1c\uc758 \uc720\ud6a8\ud55c \ud45c\ubcf8 \uc30d\uc5d0 \ub300\ud55c \ud3c9\uade0\uc744 \uad6c\ud569\ub2c8\ub2e4. \uc774 \ubc29\ubc95\uc740 \ub2e4\uc74c\uc744 \ubcf4\uc7a5\ud569\ub2c8\ub2e4. <strong data-start=\"3031\" data-end=\"3065\">\ubc18\ubcf5\uc131 \ubc0f \ucd94\uc801\uc131<\/strong>\uc5d0 \ub300\ud55c \uc5c5\uacc4 \ud45c\uc900\uc5d0 \ub530\ub77c <strong data-start=\"3104\" data-end=\"3125\">\ud488\uc9c8 \ubcf4\uc99d<\/strong> \uc885\uc774 \uc81c\uc870\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f7a7ced e-flex e-con-boxed e-con e-parent\" data-id=\"f7a7ced\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2507506 elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"2507506\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\uc560\ud50c\ub9ac\ucf00\uc774\uc158 <br><small>ASTM D4917 \uc885\uc774 \uc815\uc801 \ubc0f \ub3d9\uc801 \ub9c8\ucc30 \ud14c\uc2a4\ud2b8<\/small><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d337fc7 elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"d337fc7\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"\" data-start=\"3229\" data-end=\"3390\">\uadf8\ub9ac\uace0 <strong data-start=\"3233\" data-end=\"3260\">\uc778\uc1c4 \uc6a9\uc9c0 COF \ud14c\uc2a4\ud2b8<\/strong> \ub294 \uc81c\uc9c0 \ubc0f \uc778\uc1c4 \uc0b0\uc5c5\uc5d0\uc11c \ud544\uc218\uc801\uc73c\ub85c \ud3c9\uac00\ud574\uc57c \ud569\ub2c8\ub2e4. <strong data-start=\"3321\" data-end=\"3367\">\uacf5\uae09\uc131, \uc801\uc7ac\uc131 \ubc0f \uc2e4\ud589 \uac00\ub2a5\uc131<\/strong>. \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8\uc5d0\ub294 \ub2e4\uc74c\uc774 \ud3ec\ud568\ub429\ub2c8\ub2e4:<\/p><ul data-start=\"3392\" data-end=\"3620\"><li class=\"\" data-start=\"3392\" data-end=\"3459\"><p class=\"\" data-start=\"3394\" data-end=\"3459\"><strong data-start=\"3394\" data-end=\"3424\">\ube44\ucf54\ud305 \uc6a9\uc9c0 COF \ud14c\uc2a4\ud2b8<\/strong> \uc0ac\ubb34\uc6a9 \ubc0f \uc0c1\uc5c5\uc6a9 \uc778\uc1c4\uc6a9<\/p><\/li><li class=\"\" data-start=\"3460\" data-end=\"3541\"><p class=\"\" data-start=\"3462\" data-end=\"3541\">\ub9c8\ucc30 \ud14c\uc2a4\ud2b8 <strong data-start=\"3482\" data-end=\"3498\">\ub77c\ubca8 \uc6a9\uc9c0<\/strong>\ud3ec\uc7a5\uc7ac \ubc0f \uace8\ud310\uc9c0<\/p><\/li><li class=\"\" data-start=\"3542\" data-end=\"3620\"><p class=\"\" data-start=\"3544\" data-end=\"3620\">\ub2e4\uc74c\uc5d0\uc11c \uc6a9\uc9c0 \ud638\ud658\uc131 \ud3c9\uac00 <strong data-start=\"3581\" data-end=\"3620\">\ub514\uc9c0\ud138 \ubc0f \uc624\ud504\uc14b \uc778\uc1c4\uae30<\/strong><\/p><\/li><\/ul><p class=\"\" data-start=\"3622\" data-end=\"3772\">\uc2e0\ub8b0\ud560 \uc218 \uc788\ub294 COF \uce21\uc815\uc73c\ub85c \uc81c\uc870\uc5c5\uccb4 \uc9c0\uc6d0 <strong data-start=\"3667\" data-end=\"3698\">\ud45c\uba74 \ucc98\ub9ac \ucd5c\uc801\ud654<\/strong>, \uac10\uc18c <strong data-start=\"3707\" data-end=\"3733\">\uae30\uacc4 \uac00\ub3d9 \uc911\uc9c0\uc728<\/strong>\ub97c \ud074\ub9ad\ud558\uace0 <strong data-start=\"3746\" data-end=\"3771\">\uace0\uac1d \ub9cc\uc871<\/strong>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2456f1d e-flex e-con-boxed e-con e-parent\" data-id=\"2456f1d\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4be0d7a elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"4be0d7a\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\uc885\uc774 \ub9c8\ucc30 \ud14c\uc2a4\ud2b8\ub97c \uc704\ud55c \uace0\uae09 \uc194\ub8e8\uc158<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0424cfa e-con-full e-grid e-con e-child\" data-id=\"0424cfa\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-3a3fc5c e-con-full e-flex e-con e-child\" data-id=\"3a3fc5c\" data-element_type=\"container\" data-settings=\"{&quot;animation&quot;:&quot;none&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9e1f2e3 elementor-invisible elementor-widget elementor-widget-image\" data-id=\"9e1f2e3\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInLeft&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.coefficientfriction.com\/ko\/\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"600\" height=\"600\" src=\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/03\/coefficient-of-friction-testing-equipment-01.webp\" class=\"attachment-medium_large size-medium_large wp-image-96\" alt=\"\ub9c8\ucc30 \uacc4\uc218 \ud14c\uc2a4\ud2b8 \uc7a5\ube44 01\" srcset=\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/03\/coefficient-of-friction-testing-equipment-01.webp 600w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/03\/coefficient-of-friction-testing-equipment-01-300x300.webp 300w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/03\/coefficient-of-friction-testing-equipment-01-150x150.webp 150w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/03\/elementor\/thumbs\/coefficient-of-friction-testing-equipment-01-r3gmfg1nnljvgm1sgd9e374sfjg8cayrot70czv2xs.webp 400w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/03\/elementor\/thumbs\/coefficient-of-friction-testing-equipment-01-r3gmfg1ovgcb2m7iva4k79z5gvnv026hkls6iecayw.webp 500w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/03\/elementor\/thumbs\/coefficient-of-friction-testing-equipment-01-r3gmfg1nwdb5s7ojc5fmiewgn0ak2nlwv641l9yiy0.webp 420w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a290580 e-con-full e-flex e-con e-child\" data-id=\"a290580\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-41e1fbd elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"41e1fbd\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInRight&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"\" data-start=\"3779\" data-end=\"3850\"><strong data-start=\"3779\" data-end=\"3850\">\ub9c8\ucc30 \ud14c\uc2a4\ud2b8\ub97c \uc704\ud55c \uace0\uae09 \uc194\ub8e8\uc158: \uc140 \uc778\uc2a4\ud2b8\ub8e8\uba3c\ud2b8\uc758 COF-01<\/strong><\/p><p class=\"\" data-start=\"3852\" data-end=\"4123\">ASTM\uc744 \ub2e8\uc21c\ud654\ud558\ub824\uba74 <a href=\"https:\/\/www.astm.org\/d4917-97r07.html\" target=\"_blank\" rel=\"noopener nofollow\">D4917<\/a> \uaddc\uc815 \uc900\uc218, <strong data-start=\"3887\" data-end=\"3907\">Cell Instruments<\/strong> \ub294 <a href=\"https:\/\/www.coefficientfriction.com\/ko\/\"><strong data-start=\"3919\" data-end=\"3960\">COF-01 \ub9c8\ucc30 \uacc4\uc218 \uc2dc\ud5d8\uae30<\/strong><\/a>\uc815\ubc00\ub3c4\uc640 \uc0ac\uc6a9 \ud3b8\uc758\uc131\uc744 \uc704\ud574 \uc124\uacc4\ub418\uc5c8\uc2b5\ub2c8\ub2e4. COF-01\uc740 \ub2e4\uc74c \ub450 \uac00\uc9c0\ub97c \ubaa8\ub450 \uc9c0\uc6d0\ud569\ub2c8\ub2e4. <strong data-start=\"4029\" data-end=\"4063\">\uc815\uc801 \ubc0f \ub3d9\uc801 COF \ud14c\uc2a4\ud2b8<\/strong> ASTM D4917 \ubc0f \uae30\ud0c0 \uad00\ub828 \ud45c\uc900\uc744 \uc900\uc218\ud569\ub2c8\ub2e4.<\/p><p class=\"\" data-start=\"4125\" data-end=\"4162\"><strong data-start=\"4125\" data-end=\"4162\">COF-01\uc758 \uc8fc\uc694 \uc7a5\uc810\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/strong><\/p><ul data-start=\"4164\" data-end=\"4493\"><li class=\"\" data-start=\"4164\" data-end=\"4212\"><p class=\"\" data-start=\"4166\" data-end=\"4212\">\uc644\uc804 \uc790\ub3d9\ud654\ub41c \uc6c0\uc9c1\uc784 \ubc0f \ud798 \uac10\uc9c0<\/p><\/li><li class=\"\" data-start=\"4213\" data-end=\"4271\"><p class=\"\" data-start=\"4215\" data-end=\"4271\">\uace0\uc815\ubc00 \ub85c\ub4dc\uc140 \ubc0f \uc2e4\uc2dc\uac04 \ub514\uc9c0\ud138 \ub514\uc2a4\ud50c\ub808\uc774<\/p><\/li><li class=\"\" data-start=\"4272\" data-end=\"4366\"><p class=\"\" data-start=\"4274\" data-end=\"4366\">\uc801\ud569 \ub300\uc0c1 <strong data-start=\"4287\" data-end=\"4314\">\uc778\uc1c4 \uc6a9\uc9c0 COF \ud14c\uc2a4\ud2b8<\/strong>, <strong data-start=\"4316\" data-end=\"4343\">\ube44\ucf54\ud305 \uc6a9\uc9c0 COF \ud14c\uc2a4\ud2b8<\/strong>\ubc0f \uae30\ud0c0 \uc790\ub8cc<\/p><\/li><li class=\"\" data-start=\"4367\" data-end=\"4422\"><p class=\"\" data-start=\"4369\" data-end=\"4422\">\ub2e4\uad6d\uc5b4\ub97c \uc9c0\uc6d0\ud558\ub294 \uc0ac\uc6a9\uc790 \uce5c\ud654\uc801\uc778 \uc778\ud130\ud398\uc774\uc2a4<\/p><\/li><li class=\"\" data-start=\"4423\" data-end=\"4493\"><p class=\"\" data-start=\"4425\" data-end=\"4493\">\ud638\ud658 \ub300\uc0c1 <strong data-start=\"4441\" data-end=\"4483\">\ub370\uc774\ud130 \uc218\uc9d1 \ubc0f \ubcf4\uace0\uc11c \uc0dd\uc131<\/strong> \uc2dc\uc2a4\ud15c<\/p><\/li><\/ul><p class=\"\" data-start=\"4495\" data-end=\"4660\">\ud488\uc9c8 \uad00\ub9ac \ub2f4\ub2f9\uc790 \ubc0f \uc2e4\ud5d8\uc2e4 \uae30\uc220\uc790\uc758 \uacbd\uc6b0 COF-01\uc740 \ub2e4\uc74c\uc744 \ubcf4\uc7a5\ud569\ub2c8\ub2e4. <strong data-start=\"4561\" data-end=\"4603\">\ube60\ub974\uace0 \uc815\ud655\ud558\uba70 \ubc18\ubcf5 \uac00\ub2a5\ud55c \ud14c\uc2a4\ud2b8<\/strong>\ub97c \ud1b5\ud574 \uc885\uc774 \uc0dd\uc0b0\uc5c5\uccb4\uac00 \uaddc\uc815\uc744 \uc900\uc218\ud558\uace0 \uacbd\uc7c1\ub825\uc744 \uc720\uc9c0\ud560 \uc218 \uc788\ub3c4\ub85d \uc9c0\uc6d0\ud569\ub2c8\ub2e4.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6d2c64c e-flex e-con-boxed e-con e-parent\" data-id=\"6d2c64c\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c394047 elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"c394047\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b484e06 elementor-invisible elementor-widget elementor-widget-n-accordion\" data-id=\"b484e06\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;max_items_expended&quot;:&quot;multiple&quot;,&quot;default_state&quot;:&quot;expanded&quot;,&quot;n_accordion_animation_duration&quot;:{&quot;unit&quot;:&quot;ms&quot;,&quot;size&quot;:400,&quot;sizes&quot;:[]}}\" data-widget_type=\"nested-accordion.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"e-n-accordion\" aria-label=\"\uc544\ucf54\ub514\uc5b8. Enter \ub610\ub294 \uc2a4\ud398\uc774\uc2a4\ub85c \ub9c1\ud06c\ub97c \uc5f4\uace0, Escape\ub85c \ub2eb\uace0, \ud654\uc0b4\ud45c \ud0a4\ub85c \ud0d0\uc0c9\ud569\ub2c8\ub2e4.\">\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1890\" class=\"e-n-accordion-item\" open>\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"1\" tabindex=\"0\" aria-expanded=\"true\" aria-controls=\"e-n-accordion-item-1890\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 1. ASTM D4917 \ud45c\uc900\uc758 \ubaa9\uc801\uc740 \ubb34\uc5c7\uc778\uac00\uc694? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1890\" class=\"elementor-element elementor-element-4dda86b e-con-full e-flex e-con e-child\" data-id=\"4dda86b\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b1ee56f elementor-widget elementor-widget-text-editor\" data-id=\"b1ee56f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"\" data-start=\"5774\" data-end=\"6068\">ASTM D4917\uc740 \uc778\uc1c4 \ubc0f \ud3ec\uc7a5\uacfc \uac19\uc740 \uc751\uc6a9 \ubd84\uc57c\uc5d0\uc11c \uc77c\uad00\ub41c \uc131\ub2a5\uc744 \ubcf4\uc7a5\ud558\uae30 \uc704\ud574 \uc885\uc774, \ud2b9\ud788 \ucf54\ud305\ub418\uc9c0 \uc54a\uc740 \uc778\uc1c4 \ubc0f \ud544\uae30 \uc6a9\uc9c0\uc758 \ub9c8\ucc30\uc758 \uc815\uc801 \ubc0f \uc6b4\ub3d9 \uacc4\uc218\ub97c \uce21\uc815\ud558\ub294 \uc808\ucc28\ub97c \ud45c\uc900\ud654\ud569\ub2c8\ub2e4.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1891\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"2\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1891\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 2. \ud14c\uc2a4\ud2b8 \ubc29\ubc95\uc740 \uc2e4\uc81c \uc885\uc774 \ub3d9\uc791\uc744 \uc5b4\ub5bb\uac8c \uc2dc\ubbac\ub808\uc774\uc158\ud558\ub098\uc694? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1891\" class=\"elementor-element elementor-element-4213cd7 e-con-full e-flex e-con e-child\" data-id=\"4213cd7\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a5cb0ea elementor-widget elementor-widget-text-editor\" data-id=\"a5cb0ea\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"\" data-start=\"6070\" data-end=\"6333\">\uc218\ud3c9\uba74 \ubc29\ubc95\uc740 \uae30\uacc4\uc5d0 \uc6a9\uc9c0\ub97c \uacf5\uae09\ud558\uace0 \uc313\ub294 \ub3d9\uc548 \uc6a9\uc9c0\uac00 \ubbf8\ub044\ub7ec\uc9c0\ub294 \uac83\uc744 \ubaa8\ubc29\ud558\uc5ec \uc2e4\uc81c \uc0ac\uc6a9 \uc2dc\ub098\ub9ac\uc624\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce58\ub294 \ub9c8\ucc30 \ud2b9\uc131\uc744 \ud3c9\uac00\ud558\ub294 \ub370 \ub9e4\uc6b0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1892\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"3\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1892\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 3. \ucf54\ud305 \uc6a9\uc9c0 \ub610\ub294 \ud2b9\uc218 \uc6a9\uc9c0\uc5d0 ASTM D4917\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\uae4c? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1892\" class=\"elementor-element elementor-element-8cbaf70 e-con-full e-flex e-con e-child\" data-id=\"8cbaf70\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ed707d2 elementor-widget elementor-widget-text-editor\" data-id=\"ed707d2\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"\" data-start=\"6335\" data-end=\"6581\">ASTM D4917\uc740 \ube44\ucf54\ud305 \uc6a9\uc9c0\ub97c \uc704\ud574 \uc124\uacc4\ub418\uc5c8\uc9c0\ub9cc \ud45c\uba74 \ud2b9\uc131\uc758 \ucc28\uc774\ub85c \uc778\ud574 \uacb0\uacfc\uac00 \uc815\ubc00\ub3c4\uac00 \ub2e4\ub97c \uc218 \uc788\ub2e4\ub294 \uc810\uc744 \uc774\ud574\ud558\uba74 \ub2e4\ub978 \uc720\ud615\uc5d0\ub3c4 \uc801\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1893\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"4\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1893\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 4. \uc885\uc774 \ud14c\uc2a4\ud2b8\uc5d0\uc11c \uc815\uc801 COF\uc640 \ub3d9\uc801 COF\uc758 \ucc28\uc774\uc810\uc740 \ubb34\uc5c7\uc778\uac00\uc694? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1893\" class=\"elementor-element elementor-element-afe3920 e-flex e-con-boxed e-con e-child\" data-id=\"afe3920\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-932ab24 elementor-widget elementor-widget-text-editor\" data-id=\"932ab24\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"\" data-start=\"6583\" data-end=\"6846\">\uc815\uc801 COF\ub294 \ub3d9\uc791\uc744 \uc2dc\uc791\ud560 \ub54c\uc758 \uc800\ud56d\uc744 \uce21\uc815\ud558\uace0, \uc6b4\ub3d9 COF\ub294 \uacc4\uc18d \uc6c0\uc9c1\uc774\ub294 \ub3d9\uc548\uc758 \uc800\ud56d\uc744 \uce21\uc815\ud569\ub2c8\ub2e4. \ub450 \uac00\uc9c0 \ubaa8\ub450 \uc885\uc774 \ucde8\uae09 \ub3d9\uc791\uc744 \uc774\ud574\ud558\ub294 \ub370 \ud544\uc218\uc801\uc785\ub2c8\ub2e4.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1894\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"5\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1894\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 5. ASTM D4197\uacfc ASTM D4198\uc758 \ucc28\uc774\uc810 <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1894\" class=\"elementor-element elementor-element-f438e49 e-flex e-con-boxed e-con e-child\" data-id=\"f438e49\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ae2370c elementor-widget elementor-widget-text-editor\" data-id=\"ae2370c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"\" data-start=\"4711\" data-end=\"5075\">\ub2e4\uc74c\uacfc \uac19\uc740 \ub300\uccb4 \ubc29\ubc95\uacfc \ub2ec\ub9ac <strong data-start=\"4743\" data-end=\"4781\">ASTM D4918(\uacbd\uc0ac\uba74 \ubc29\uc2dd)<\/strong>ASTM D4917\uc740 \ub2e4\uc74c\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. <strong data-start=\"4803\" data-end=\"4832\">\uc815\ub7c9\uc801 \uce21\uc815<\/strong> \uc758 \uc815\uc801 \ub9c8\ucc30\uacfc \uc6b4\ub3d9 \ub9c8\ucc30\uc744 \ubaa8\ub450 \uce21\uc815\ud558\uc5ec \uc885\uc774\uc758 \uc644\uc804\ud55c \uc2ac\ub77c\uc774\ub529 \ub3d9\uc791\uc744 \uc774\ud574\ud558\ub294 \ub370 \ud544\uc218\uc801\uc785\ub2c8\ub2e4. \uc774 \ubc29\ubc95\uc740 \ud2b9\ud788 \ub2e4\uc74c\uacfc \uac19\uc740 \uacbd\uc6b0\uc5d0 \uc720\uc6a9\ud569\ub2c8\ub2e4. <strong data-start=\"4986\" data-end=\"5026\">\ucf54\ud305\ub418\uc9c0 \uc54a\uc740 \ud544\uae30 \ubc0f \uc778\uc1c4 \uc6a9\uc9c0<\/strong>\uc5d0\uc11c <strong data-start=\"5034\" data-end=\"5062\">\uade0\uc77c\ud55c \ud53c\ub4dc \uc131\ub2a5<\/strong> \uac00 \uc911\uc694\ud569\ub2c8\ub2e4.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Test Method for Coefficient of Static and Kinetic Friction of the Horizontal Plane Method Understanding the frictional behavior of paper is essential for ensuring optimal performance in printing, converting, and packaging operations. ASTM D4917 outlines a standardized procedure for measuring the coefficient of static and kinetic friction of uncoated printing and writing paper, guiding quality [&hellip;]<\/p>","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"footnotes":""},"class_list":["post-370","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.coefficientfriction.com\/ko\/wp-json\/wp\/v2\/pages\/370","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.coefficientfriction.com\/ko\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.coefficientfriction.com\/ko\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.coefficientfriction.com\/ko\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.coefficientfriction.com\/ko\/wp-json\/wp\/v2\/comments?post=370"}],"version-history":[{"count":6,"href":"https:\/\/www.coefficientfriction.com\/ko\/wp-json\/wp\/v2\/pages\/370\/revisions"}],"predecessor-version":[{"id":713,"href":"https:\/\/www.coefficientfriction.com\/ko\/wp-json\/wp\/v2\/pages\/370\/revisions\/713"}],"wp:attachment":[{"href":"https:\/\/www.coefficientfriction.com\/ko\/wp-json\/wp\/v2\/media?parent=370"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}