{"id":15890,"date":"2016-03-18T15:12:44","date_gmt":"2016-03-18T19:12:44","guid":{"rendered":"http:\/\/www.constructionspecifier.com\/?p=15890"},"modified":"2017-04-04T14:51:56","modified_gmt":"2017-04-04T18:51:56","slug":"specifying-ballistic-resistance","status":"publish","type":"post","link":"https:\/\/www.constructionspecifier.com\/specifying-ballistic-resistance\/","title":{"rendered":"Specifying Ballistic Resistance: The difference between tested and certified"},"content":{"rendered":"<figure id=\"attachment_15893\" aria-describedby=\"caption-attachment-15893\" style=\"width: 310px\" class=\"wp-caption alignright\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-15893\" src=\"http:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2016\/03\/1.gif\" alt=\"This images shows the ballistics test results of this specially formed glass. \" width=\"310\" height=\"206\" \/><figcaption id=\"caption-attachment-15893\" class=\"wp-caption-text\"><span style=\"font-size: 10pt;\">This images shows the ballistics test results of this specially formed glass. <em><span style=\"font-size: 8pt;\"><br \/> Photo courtesy UL <\/span><\/em><\/span><\/figcaption><\/figure>\n<p><strong>By Louis Chavez<\/strong><\/p>\n<p>When specifying, designing, or building with ballistic-resistant products and\/or assemblies, it is important to use safe, high-quality products that have not only been tested to accepted industry standards, but also certified. There is some confusion in the marketplace about testing and certification. Contrary to what some may believe, one does not necessarily mean the other.<\/p>\n<p>There are many organizations offering testing services for ballistic-resistant equipment, but very few offer certification services. When a product is certified by UL, it has not only undergone testing to determine compliance to the appropriate standards (as shown below), but it is also covered by a rigorous follow-up program to determine continued compliance. UL\u2019s testing and certification program, includes periodic retesting and regular followup visits to the manufacturing place. During the followup service visits, UL staff will inspect random samples to verify the manufacturer has the ability to produce products in compliance with the testing standards used during the original product investigation. Only after this is completed is the product authorized to bear the <a href=\"http:\/\/industries.ul.com\/life-safety-and-security\/security-products\">UL mark<\/a>.<\/p>\n<p>If a ballistic-resistant product is tested to UL standards, but is not certified, there is a risk it may fail to perform as it did during original testing. For example, a ballistic-resistant product is tested at a lab and passes the UL 752, <em>Standard for Bullet-resisting Equipment<\/em> examinations. Subsequently, one of the raw materials used in the product is substituted for another believed to be equivalent. Under UL\u2019s certification program, this substitution would be flagged and the appropriate steps taken to assess the impact of the change. Often, this can only be determined through reevaluation or retesting.<\/p>\n<p>Some may try to encourage sales of their products by using terms such as &#8220;meets,&#8221; &#8220;evaluated to,&#8221; &#8220;tested to,&#8221; or &#8220;complies with.&#8221; These statements signify the ballistic-resistant product may have only been tested once and is not subject to UL\u2019s ongoing followup services. It leads to the question: \u201cWill the product still pass testing today?\u201d Without the UL mark, one can never be certain whether it still passes or not.<\/p>\n<p>On the other hand, when a company chooses UL certification and its ballistic-resistant product bears the UL Mark, the end user can trust it to continue to meet exacting standards.<\/p>\n<p>For the purposes of rating assignment, the ammunition specifications given in the following table apply to UL-certified bullet-resisting materials.<\/p>\n<h4>Ratings of bullet-resisting materials and test parameters<\/h4>\n<table width=\"100%\">\n<tbody>\n<tr>\n<td rowspan=\"2\"><strong>Rating\u00a0<\/strong><\/td>\n<td rowspan=\"2\"><strong>Ammunition\u00a0<\/strong><\/td>\n<td rowspan=\"2\"><strong>Grain\u00a0<\/strong><\/td>\n<td rowspan=\"2\"><strong>(g)\u00a0<\/strong><\/td>\n<td colspan=\"2\"><strong>Minimum velocity,\u00a0<\/strong><\/td>\n<td rowspan=\"2\"><strong>Number of shots\u00a0<\/strong><\/td>\n<td rowspan=\"2\"><strong>UL 752 Paragraph reference\u00a0<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>fps\u00a0<\/strong><\/td>\n<td><strong>(m\/s)\u00a0<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Level 1<\/td>\n<td>9 mm full metal copper jacket with lead core<\/td>\n<td>124<\/td>\n<td>8.0<\/td>\n<td>1,175<\/td>\n<td>358<\/td>\n<td>3<\/td>\n<td>4.3<\/td>\n<\/tr>\n<tr>\n<td>Level 2<\/td>\n<td>.357 Magnum jacketed lead soft point<\/td>\n<td>158<\/td>\n<td>10.2<\/td>\n<td>1,250<\/td>\n<td>381<\/td>\n<td>3<\/td>\n<td>4.4<\/td>\n<\/tr>\n<tr>\n<td>Level 3<\/td>\n<td>.44 Magnum lead semi-wadcutter gas checked<\/td>\n<td>240<\/td>\n<td>15.6<\/td>\n<td>1,350<\/td>\n<td>411<\/td>\n<td>3<\/td>\n<td>4.5<\/td>\n<\/tr>\n<tr>\n<td>Level 4<\/td>\n<td>.30 caliber rifle lead-core soft point<\/td>\n<td>180<\/td>\n<td>11.7<\/td>\n<td>2,540<\/td>\n<td>774<\/td>\n<td>1<\/td>\n<td>4.6<\/td>\n<\/tr>\n<tr>\n<td>Level 5<\/td>\n<td>7.62 mm rifle lead-core full-metal copper jacket, military ball<\/td>\n<td>150<\/td>\n<td>9.7<\/td>\n<td>2,750<\/td>\n<td>838<\/td>\n<td>1<\/td>\n<td>4.7<\/td>\n<\/tr>\n<tr>\n<td>Level 6<\/td>\n<td>9-mm full-metal copper jacket with lead core<\/td>\n<td>124<\/td>\n<td>8.0<\/td>\n<td>1,400<\/td>\n<td>427<\/td>\n<td>5<\/td>\n<td>4.8<\/td>\n<\/tr>\n<tr>\n<td>Level 7<\/td>\n<td>5.56 mm Rifle full-metal copper jacket with lead core<\/td>\n<td>55<\/td>\n<td>3.56<\/td>\n<td>3,080<\/td>\n<td>939<\/td>\n<td>5<\/td>\n<td>4.9<\/td>\n<\/tr>\n<tr>\n<td>Level 8<\/td>\n<td>7.62-mm rifle lead-core full-metal copper jacket, military ball<\/td>\n<td>150<\/td>\n<td>9.7<\/td>\n<td>2,750<\/td>\n<td>838<\/td>\n<td>5<\/td>\n<td>4.10<\/td>\n<\/tr>\n<tr>\n<td>Level 9<\/td>\n<td>Armor piercing .30 caliber rifle steel-core lead-point filler full-metal jacket<\/td>\n<td>166<\/td>\n<td>10.8<\/td>\n<td>2715<\/td>\n<td>828<\/td>\n<td>1<\/td>\n<td>4.11<\/td>\n<\/tr>\n<tr>\n<td>Level 10<\/td>\n<td>.50 caliber rifle lead-core full-metal copper jacket military ball<\/td>\n<td>709.5<\/td>\n<td>45.9<\/td>\n<td>2810<\/td>\n<td>856<\/td>\n<td>1<\/td>\n<td>4.12<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\">Supplementary shotgun<\/td>\n<td>12-gauge rifled lead slug and<\/td>\n<td>437<\/td>\n<td>28.3<\/td>\n<td>1,585<\/td>\n<td>483<\/td>\n<td>3<\/td>\n<td>4.11<\/td>\n<\/tr>\n<tr>\n<td>12-gauge 00 lead buckshot (12 pellets)<\/td>\n<td>650<\/td>\n<td>42<\/td>\n<td>1,200<\/td>\n<td>366<\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td colspan=\"8\">NOTE &#8211; Maximum velocity is 110 percent of the minimum velocity.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><em><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-thumbnail wp-image-15894\" src=\"http:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2016\/03\/2-150x150.gif\" alt=\"2\" width=\"150\" height=\"150\" \/>Lou Chavez is UL principal engineer, responsible for the technical oversight of physical and electronic security categories and the technical relevance of UL\u2019s related security standards. He has 30 years of experience with national and international standards development, regulatory, code development, and conformity assessment areas. Chavez can be reached at <a href=\"mailto:louis.chavez@ul.com\">louis.chavez@ul.com<\/a>.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>When specifying, designing, or building with ballistic-resistant products and\/or assemblies, it is important to use safe, high-quality products that have not only been tested to accepted industry standards, but also certified. <\/p>\n","protected":false},"author":8,"featured_media":15893,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[520,12,179,449,181,228,188,279,490,460,501,462],"tags":[2619,906,1759,1185,2620],"class_list":["post-15890","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-features","category-web-exclusive","category-masterformat","category-uniformat","category-01-00-00-general-requirements","category-01-80-00-performance-requirements","category-08-00-00-openings","category-08-80-00-glazing","category-b2020exterior-windows","category-b20exterior-vertical-enclosures","category-c1020interior-windows","category-c10interior-construction","tag-ballistics","tag-certification","tag-standards","tag-testing","tag-ul-mark","entry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - 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