火焰蔓延指数测试�?参数-价格-中国粉体罐�/title>

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$(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }); }); </script>  <div class="cpjj"> <strong>仪器简介：</strong></p><p><p> BS 476-6 测试方法是一种材料火焰传播性能的测定方法，主要用于评估墙壁和天花板衬里的防火性能，测定结果以火焰传播指数表示、�/p><p> 试验时，将试件暴露于管式喷灯下，该灯的释热量�?30J/妙。试�?�?5秒后，将2个电加热器的总功率调�?800瓦，至试�?分钟时，将功率降�?500瓦，随后维持此功率不变，直至试验结束，总试验时间为20分钟、�/p><p> 为了评估被试材料BS476-6中的火焰传播性能，用热电偶连续记录烟筒中温度与室温的差值，并将所得结果与标定曲线比较，标定曲线是以规定密度的石棉－水泥板以同样方式测定的，进行比较时，比较相同时间下两条曲线表示的温差值，在试�?�?分钟，每�?0 秒取温差值，在随后的4�?0分钟，每�?分钟取温差值，�?后的11�?0分钟，每�?分钟取温差值，这三个时间段的分火焰传播指数I分别按公式计算、�/p><p> I值是三个分火焰传播指数的和。I 值越高，材料的阻燃性越低，0 级材料的I�?2、�/p></p><p><strong>技术参数：</strong></p><p><p> 符合标准：BS 476 Part 6 A1: 2009 火焰蔓延性能测试</p></p><p><strong>主要特点９�/strong></p><p><p> 1、不锈钢箱体支撑框架</p><p> 2、硅酸钙板燃烧室</p><p> 3、三种试样支架，不锈钢包裹方弎�/p><p> 4�?�?000W石英辐射器装置，对样品提供热辐射</p><p> 5、T型燃烧器，对试样提供明火燃烧方式</p><p> 6、热电偶连续记录烟筒中温度与室温的差倻�/p><p> 7、功率输出自动控制，根据测试时间，自动调节输出功玆�/p><p> 8、电脑自动处理数据，并可打印测试报告</p><p> </p><p> </p> </div>  <div class="cxd"> <div class="cxd_tit"><span></span>创新炸�/div> <p style=" color: #333; 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