碳酸钙填充的含铅PVC材料中灰分的测定
Determination of ash in lead-containing PVC materials filled with calcium carbonate
杜文佳 1林纬文 2陈小函 2肖照华 3扈廷勇2
作者信息
- 1. 梧州市食品药品检验所,广西 梧州 543002
- 2. 广西五一管业股份有限公司,广西 梧州 543000
- 3. 梧州市产品质量检验所,广西 梧州 543002
- 折叠
摘要
对比分析采用GB/T 9345.5-2010《塑料 灰分的测定 第 5 部分:聚氯乙烯》中方法A和方法C测定碳酸钙填充含铅 PVC材料灰分结果的差异,指出碳酸钙填充含铅 PVC 材料按方法 B 和方法 C 测定灰分过程中,碳酸钙转化为硫酸钙导致灰分测定结果偏高,从技术与标准化方面进行了讨论并提出了标准的应用建议.
Abstract
A comparative analysis was conducted on the differences in the ash determination results of lead-containing PVC materials filled with calcium carbonate by method A and method C in GB/T 9345.5-2010 Plastics-Determination of ash-Part 5:Poly(vinyl chloride).It was pointed out that in the determination of ash content in lead-containing PVC materials filled with calcium carbonate according to method B and method C,the conversion of calcium carbonate to calcium sulfate led to higher ash de-termination results.Technical and standardization aspects were discussed,and suggestions for the applica-tion of the national standard were proposed.
关键词
PVC/国家标准/碳酸钙/硬脂酸铅/灰分/硫酸铅/硫酸钙Key words
PVC/national standard/calcium carbonate/lead stearate/ash content/lead sulfate/calcium sulfate引用本文复制引用
出版年
2024
NETL
NSTL
万方数据