DIN EN ISO 11337-2011 塑料.聚酰胺.用气相色谱法测定

标准号：DIN EN ISO 11337-2011
中文标准名称：塑料.聚酰胺.用气相色谱法测定
英文标准名称：Plastics - Polyamides - Determination of
标准类型：G31
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：G31
国际标准分类号：83.080.20
适用范围：This International Standard specifies a method for determining ε-caprolactam and ω-laurolactam in polyamides by gas chromatography. It is suitable particularly for the determination of ε-caprolactam in polyamide 6 and ω-laurolactam in polyamide 12. Bearing in mind that gas chromatography offers a wide range of possible conditions, the method specified is that shown to have been suitable in practice.Two variants of the basic method are specified:- Method A is an extration method with boiling methanol, and the extract is injected into a gas chromatograph.- Method B is a method using a solvent, and the solution is injected into a gas chromatograph.