AS/NZS 3837标准名称

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

圆锥热量计量器火焰测试cone calorimeter fire test

AS/NZS 3837测试指标

(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)。

AS/NZS 3837测试方法及流程

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;

AS/NZS 3837等级划分：

防火等级1级－不燃材料。

防火等级2级－难燃材料。

防火等级3级－可燃材料。

防火等级4级－易燃材料。