|   AS/NZS 3837:1998 Method of test for heat and smoke release rates for materials and products using an Oxygen Consumption Calorimeter  AS/NZS 3837:1998 耗氧量法测定材料释热及烟雾释放速率方法。  
AS/NZS 3837测试设备:  cone calorimeter fire test 圆锥热量计量器火焰测试,  
测试指标(Properties are determined as follows):  (a) 热释放率,由氧气消耗量决定(Rate of heat release, by measurement of the oxygen consumption, as determined by the oxygen concentration and the flow rate in the exhaust product stream);  (b) 有效热燃烧值和物质质量损失率(Effective heat of combustion from a concomitant measurement of specimen mass loss rate, in combination with the heat release rate);  (c) 烟释放率(Smoke release, by obscuration of light by the combustion product stream);  (d) 可燃性 ,产品加热后从不燃到可燃的时间(Ignitability, as a measurement of time from initial exposure to time of sustained flaming)。  
样品要求:  A 100×100× thickness(<=50), 6 PCS(对于试样实际厚度小于6mm的试样,测试时应该带上试样实际使用的基材使其整体厚度不小于6mm);  B 提供样品密度(kg/m3)。  
测试方法及流程:  prediction in accordance with Clause 3 of Specification A2.4 using data  obtained by testing the material at 50 kW/m2 irradiance in the horizontal  orientation with edge frame in accordance with AS/NZS 3837.  
测试前,样品用锡箔纸(烤箱烧烤那种)包好4角和样品的底部形成一个托盘,用于存储可能的融化物。水平放置样品,火焰从一侧点燃,同时给样品以50kw/m2的热辐射加热。  
出现如下情况可以终止测试:  
1. 样品燃烧结束2分钟后;  
2. 平均物质质量损失率一分钟后降低到150gm2;  
3. 试验时间超过60分钟;   
4. 样品开始试验10分钟内不燃烧;  
结果主要判定要求(其它判定参数未给出,详见具体测试报告):  
判定要求   可燃程度   等级划分   使用要求     2分钟内燃烧   易燃   4级   见附录     2-10分钟内燃烧   可燃   3级     10-20分钟   难燃   2级     20分钟以上   不燃   1级  
更多关于AS/NZS 3837热释放量测试量及烟雾释放速率方法,请咨询中国防火网 中国防火网免费咨询电话:400-666-7290  025-8658 3475 网址:www.firete.com 邮箱:info@firete.com 
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