GB/T 41489-2022
Plastics—Polyamides—Determination of ε-caprolactam and ω-laurolactam by gas chromatography
- Standard No.
- GB/T 41489-2022
- Language
- Chinese
- Release Date
- 2022
- Published By
- 國家市場監(jiān)督管理總局、中國國家標(biāo)準(zhǔn)化管理委員會(huì)
- Lastest
- GB/T 41489-2022
- Scope
- This document specifies a method for the determination of ε-caprolactam and ω-laurolactam in polyamides by gas chromatography. This document applies to the determination of the content of ε-caprolactam and ω-laurolactam in polyamides. This document describes methods for the determination of ε-caprolactam and ω-laurolactam by methanol extraction and solvent dissolution. --- Method A is the methanol extraction method, take an appropriate amount of the extract and inject it into the gas chromatograph; --- Method B is the solvent dissolution method, take an appropriate amount of the dissolved solution and inject it into the gas chromatograph.
GB/T 41489-2022 Referenced Document
- GB/T 2035 Terms and definitions for plastics
- GB/T 2035-2008 Terms and definitions for plastics
- GB/T 6005 Test sieves.Metal wire cloth,perforated metal plate and electroformed sheet.Nominal sizes of openings
- GB/T 6682 Water for analytical laboratory use.Specification and test methods
- GB/T 6682-2008 Water for analytical laboratory use.Specification and test methods
- GB/T 9722 Chemical reagent.General rules for the gas chromatography
GB/T 41489-2022 history
- 2022 GB/T 41489-2022 Plastics—Polyamides—Determination of ε-caprolactam and ω-laurolactam by gas chromatography