標準號：DIN EN ISO 11337-2011
中文標準名稱：塑料.聚酰胺.用氣相色譜法測定
英文標準名稱：Plastics - Polyamides - Determination of
標準類型：G31
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：G31
國際標準分類號：83.080.20
適用范圍：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.