采用氧指数和烟密度分析方法，对无卤阻燃聚乙烯试样燃烧性能测试的影响因素进行了分析。
The factors of flammability testing of no-halogen flame-retardant PE were investigated by testing methods of the oxygen index and the smoke density.
当煤矿井下发生爆炸时会产生一定体积、温度、浓度及密度的毒害烟流。
Poisonous and harmful smoke flow with a certain volume, temperature, concentration and density will be generated during explosion in a coal mine.
不同烟温度下收集的木醋液密度、气味、颜色差别不大。
The differences of density, odor and color for wood vinegar collected at different smoke temperature were very little.
用此复合阻燃剂的阻燃PP，具有低卤低烟低毒、低密度、低成本，力学性能较佳的优点。
The flame retarded PP containing this composite flame retardant has low smoke, low toxicity, low density, low cost and good mechanical properties.
电缆或光缆在特定条件下燃烧的烟密度光测系统由光源、硅光电池接受器和计算机系统组成。
Smoke density measurement system of cables burning under certain conditions by the light source, the silicon photocell receiver and computer system.
而且随着装烟密度的增加，失水速率减小。
The rate of losing water decreased with the loading density increasing.
采用本发明，燃烧时不会产生有毒气体，烟密度低，材料的阻燃性能、安全性能和力学性能优良。
The fireproof polyolefin composition has excellent fire retarding performance, safety performance and mechanical performance, and produces no toxic gas and less smoke during combustion.
采用氧指数法、热重分析及烟密度测试法就锡酸锌对软质pvc的阻燃抑烟行为进行了研究。
The effects of zinc stannate on flame retardancy and smoke suppression of soft PVC were studied by means of LOI, TGA and smoke density measurement.
烟支密度在一定范围内变化对烟支硬度的影响不大。
The hardness of cigarette was affected slightly by the change of tobacco rod density in certain range.
阐述了聚丙烯烟用丝束线密度不匀率对过滤嘴质量的影响，分析了影响丝束线密度不匀率的因素。
The influence of linear density uneveness of PP tow for cigarette on the filter tip quality was described. The influential factors upon linear density uneveness were analyzed.
转速增加碳烟颗粒数密度增加，但是却存在一个最佳转速使碳烟的体积分数最小；
The number density of soot is increased by the engine speed. But there is a best speed that makes the volume fraction of soot least.
研究结果表明，材料的氧指数、烟密度与炭化剂的用量成正比，而起始膨胀时间与炭化剂的用量成反比。以直接模压成型方法制得的材料膨胀性能较好。
It was found that its oxygen index, smoke density were directly proportional to content of carburizer whereas its initial expanding time was inversely proportional to content of carburizer.
通过氧指数（OI）、烟密度等级（SDR）、热性能和力学性能的测定，研究了锡酸锌包覆碳酸钙阻燃剂对聚氯乙烯（PVC）电缆料性能的影响。
The effects of Zinc stannate coated CaCO3(ZSC-1) flame retardant on properties of PVC cable material were studied by the tests of OI, SDR, thermal property and mechanical property.
2002着火条件下电线电缆的通用测试标准——在规定条件下燃烧的电缆烟密度测试，第二部分：测试程序及要求。
En 50268-2:2002 Common test methods for cables under fire conditions-Measurement of smoke density of cables burning under defined conditions-Part 2: Procedure.
2002着火条件下电线电缆的通用测试标准——在规定条件下燃烧的电缆烟密度测试，第二部分：测试程序及要求。
En 50268-2:2002 Common test methods for cables under fire conditions-Measurement of smoke density of cables burning under defined conditions-Part 2: Procedure.
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