Plasty - Polyamidy - Stanovení e-kaprolaktamu a w-laurolaktamu plynovou chromatografií (Norma k přímému použití jako ČSN).
NORMA vydaná dňa 1.9.2023
Designation standards: ČSN EN ISO 11337
Classification mark: 643608
Catalog number: 517425
Publication date standards: 1.9.2023
The number of pages: 24
Approximate weight : 72 g (0.16 lbs)
Country: Czech technical standard
Kategória: Technické normy ČSN
This document specifies a method for determining e-caprolactam and w-laurolactam in polyamides by gas chromatography. It is applicable particularly to the determination of e-caprolactam in polyamide 6 and w-laurolactam in polyamide 12.
Two variants of the basic method are specified.
- Method A is an extraction 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