某厂家生产的PP板的烟密度等级的影响因素和不确定度分析

摘要

Automotive interior material smoke density grade refers to the degree of smoke produced by automotive interior materials under burning conditions. Its principle is to measure the loss of luminous flux caused by the reflection of light on the solid dust in the flue gas generated by the combustion of automotive interior materials to evaluate the smoke density. By analyzing the factors that influence the smoke density (including the test environment, the oxygen supply, the test position of the sample, the error of the equipment, etc.) during the burning process of PP board produced by a manufacturer, various factors affecting the smoke density are discussed Calculate the uncertainty of smoke density level.%汽车内饰材料烟密度等级是指在燃烧条件下,汽车内饰材料产生烟的程度.它的原理是测量汽车内饰材料燃烧产生的烟气中固体尘埃对光的反射而造成光通量的损失,从而来评价烟密度大小[1].通过分析某厂家生产的PP板燃烧过程中,影响其烟密度的因素(包括试验环境、供氧量、样品的试验位置、设备误差等),讨论影响烟密度的各种因素,并计算烟密度等级的不确定度.