{"id":11302,"date":"2023-03-31T07:44:55","date_gmt":"2023-03-31T07:44:55","guid":{"rendered":"https:\/\/lenard.tech\/producto\/en-17493\/"},"modified":"2025-10-22T11:46:19","modified_gmt":"2025-10-22T11:46:19","slug":"iso-17493-2016","status":"publish","type":"product","link":"https:\/\/lenard.tech\/en\/producto\/iso-17493-2016\/","title":{"rendered":"ISO 17493: 2016"},"content":{"rendered":"<section class=\"wpb-content-wrapper\"><p>[vc_row][vc_column width=&#8221;1\/2&#8243;][vc_column_text woodmart_inline=&#8221;no&#8221; text_larger=&#8221;no&#8221;]Clothing and equipment for protection against heat \u2014 Test method for convective heat resistance using a hot air circulating oven[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_video link=&#8221;https:\/\/youtu.be\/f3exU9IPSV4&#8243; woodmart_css_id=&#8221;67e52d940552b&#8221; image_poster_switch=&#8221;no&#8221;][\/vc_column][\/vc_row][vc_row][vc_column][vc_tta_tabs][vc_tta_section title=&#8221;DEFINITION&#8221; tab_id=&#8221;1686220657824-a97f33f8-2277&#8243;][vc_column_text woodmart_inline=&#8221;no&#8221; text_larger=&#8221;no&#8221;]This test method allows the evaluation of the heat resistance of materials, protective clothing and equipment.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;PRINCIPLE&#8221; tab_id=&#8221;1686220657836-f6e3b4af-7882&#8243;][vc_column_text woodmart_inline=&#8221;no&#8221; text_larger=&#8221;no&#8221;]Samples are suspended in a hot air circulation oven for 5 minutes at the specified test temperature of 180\u00b0C or 260\u00b0C for 5 minutes. Any visible observations such as charring, deformation, degradation, delamination, brittleness, flaking, hole formation, ignition, melting, separation, or splitting of the sample are recorded and shrinkage is measured.<\/p>\n<p>Observations of degradation, brittleness, splitting, separation, or flaking may be considered subjective and should not be used as pass\/fail criteria for a product standard.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;EQUIPMENT&#8221; tab_id=&#8221;1686220686801-896e0c14-14a3&#8243;][vc_column_text woodmart_inline=&#8221;no&#8221; text_larger=&#8221;no&#8221;]<\/p>\n<ul>\n<li>Forced air circulation oven, capable of maintaining the test temperature for a period of 5 min and of sufficient internal volume to allow suspension of the test sample<br \/>\nThe tests will be carried out at the test temperature specified in the reference standard. Unless otherwise specified, the tests shall be carried out at a test temperature of (180)\u00b0C or (260)\u00b0C.<\/li>\n<\/ul>\n<p>The maximum deviation of temperature from the temperature levels specified in:<\/p>\n<p>\u2014\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 260 \u00b0C for each of the nine thermocouples shall not exceed 6.5 \u00b0C<\/p>\n<p>\u2014\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 180 \u00b0C for each of the nine thermocouples shall not exceed 4.5 \u00b0C.<\/p>\n<ul>\n<li>Rigid, square templates for sizing material test tubes<br \/>\nA 375 mm \u00d7 375 mm template shall be used to size flat materials that are subject to shrinkage measurements.<br \/>\nA 150 mm \u00d7 150 mm template can be used for flat materials that are not subject to shrinkage measurements.<\/li>\n<\/ul>\n<ul>\n<li>Stretch frame for measuring shrinkage of knitted materials.<\/li>\n<\/ul>\n<p>[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;SAMPLES&#8221; tab_id=&#8221;1686220698017-3a206589-6633&#8243;][vc_column_text woodmart_inline=&#8221;no&#8221; text_larger=&#8221;no&#8221;]Test a minimum of three 375mm x 375mm samples cut using the template mentioned above.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;PROCEDURE FOR FLAT TEXTILES&#8221; tab_id=&#8221;1686220706150-e211496a-a24e&#8221;][vc_column_text woodmart_inline=&#8221;no&#8221; text_larger=&#8221;no&#8221;]<\/p>\n<ul>\n<li>Mark the distance between the two marks of each sample with a distance of 275 mm.<\/li>\n<li>Heat oven to specified temperature and stabilize for 30 min.<\/li>\n<li>Suspend the sample by metal hooks at the top and center in the oven for 5 min.<\/li>\n<li>Five minutes after the specified exposure, when necessary, measure the marked dimensions of the specimen to determine the percent shrinkage in both principal directions. Pull the knit fabric swatches to their original dimensions for 10 min, then remove the swatches from the frame and allow the swatches to relax for 10 min before measurement to determine pass\/fail.<\/li>\n<\/ul>\n<p>[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;RESULTS ACCORDING TO ISO 11612:2015 at 180\u00baC&#8221; tab_id=&#8221;1686220744202-7e6db39e-c192&#8243;][vc_column_text woodmart_inline=&#8221;no&#8221; text_larger=&#8221;no&#8221;]<\/p>\n<ul>\n<li>No tissue can catch fire<\/li>\n<li>No fabric can melt<\/li>\n<li>No fabric can shrink more than 5%<\/li>\n<\/ul>\n<p>[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;RESULTS ACCORDING TO ISO 15384 at 260\u00baC&#8221; tab_id=&#8221;1686220763829-dc0f1102-3249&#8243;][vc_column_text woodmart_inline=&#8221;no&#8221; text_larger=&#8221;no&#8221;]<\/p>\n<ul>\n<li>No tissue can catch fire<\/li>\n<li>No fabric can melt<\/li>\n<li>No fabric can shrink more than 10%<\/li>\n<\/ul>\n<p>[\/vc_column_text][\/vc_tta_section][\/vc_tta_tabs][\/vc_column][\/vc_row]<\/p>\n<\/section>","protected":false},"excerpt":{"rendered":"<p>Clothing and equipment for protection against heat \u2014 Test method for convective heat resistance using a hot air circulating oven<\/p>\n","protected":false},"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_mi_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"product_cat":[883],"product_tag":[],"class_list":["post-11302","product","type-product","status-publish","hentry","product_cat-normative"],"acf":[],"_links":{"self":[{"href":"https:\/\/lenard.tech\/en\/wp-json\/wp\/v2\/product\/11302","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lenard.tech\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/lenard.tech\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/lenard.tech\/en\/wp-json\/wp\/v2\/comments?post=11302"}],"wp:attachment":[{"href":"https:\/\/lenard.tech\/en\/wp-json\/wp\/v2\/media?parent=11302"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/lenard.tech\/en\/wp-json\/wp\/v2\/product_cat?post=11302"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/lenard.tech\/en\/wp-json\/wp\/v2\/product_tag?post=11302"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}