DIN EN ISO 11337:2011 PDF

Scope: 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.

DIN EN ISO 11337:2011 history

2023 DIN EN ISO 11337:2023-10 Plastics - Polyamides - Determination of <epsilon>-caprolactam and <omega>-laurolactam by gas chromatography (ISO 11337:2023); German version EN ISO 11337:2023
2023 DIN EN ISO 11337:2023-04 Plastics - Polyamides - Determination of <epsilon>-caprolactam and <omega>-laurolactam by gas chromatography (ISO 11337:2023); German version EN ISO 11337:2023
2023 DIN EN ISO 11337:2023 Plastics - Polyamides - Determination of -caprolactam and -laurolactam by gas chromatography (ISO 11337:2023)
1970 DIN EN ISO 11337 E:2022-06 Determination of caprolactam and laurolactam by gas chromatography in plastic polyamides (draft)
2011 DIN EN ISO 11337:2011 Plastics - Polyamides - Determination of -caprolactam and -laurolactam by gas chromatography (ISO 11337:2010); German version EN ISO 11337:2010
2004 DIN EN ISO 11337:2004 Plastics - Polyamides - Determination of -caprolactam and -laurolactam by gas chromatography (ISO 11337:2004); German version EN ISO 11337:2004