Plastics — Determination of matter extractable by organic solvents (conventional methods)
塑料制品;有机溶剂可萃取物质的测定(常规方法)
发布日期:
2013-01-22
ISO 6427:2013规定了塑料中可由沸点附近的热有机液体提取的成分的测定方法。对于一种特殊情况,给出了一种所谓的冷提取方法。
可提取组分可以是单体、低聚物、聚合物、增塑剂、稳定剂等。可提取物质的种类和百分比会影响塑料的性能。
推荐的提取液取决于塑料类型和测定目的。在分析化学意义上,特殊成分的提取量通常不是定量的。
ISO 6427:2013 specifies methods for the determination of components in plastics that can be extracted by hot organic liquids near their boiling points. For one special case, a so-called cold-extraction method is given.
The extractable components can be monomers, oligomers, polymers, plasticizers, stabilizers, etc. The kind and percentage of extractable matter influence the properties of plastics.
The recommended extraction liquid depends on the type of plastic and on the purpose of the determination. The extracted amounts of special constituents are often not quantitative in the sense of analytical chemistry.