testitem 测试名称： standard test methodfor density of smoke from the burning or decomposition ofplastics塑料烟密度 testinfo 测试内容： testclausere conditioning23±2°cand relative humidity 50±5% at least 40h sample required:25.4×25.4×6.2（mm） 7 pcs turnaround time: normal (9 working days)所需时间 :标准(9 个工作天)