GB/T 41939-2022 (English Version) PDF

Standard No.: GB/T 41939-2022
Language: Chinese, Available in English version
Release Date: 2022
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 41939-2022

Scope: This document specifies a method for the determination of magnesium in natural latex concentrate, natural rubber and natural rubber products using atomic absorption spectrometry. This document applies to the determination of magnesium content in natural latex concentrate, natural rubber and natural rubber products.

GB/T 41939-2022 Referenced Document

ISO 1042 Laboratory glassware - One-mark volumetric flasks
ISO 123 Rubber latex - Sampling
ISO 124 Latex, rubber - Determination of total solids content
ISO 1772 Laboratory crucibles in porcelain and silica
ISO 2471 Paper and board - Determination of opacity (paper backing) - Diffuse reflectance method
ISO 4661-2 Rubber, vulcanized - Preparation of samples and test pieces - Part 2: Chemical tests
ISO 648 Laboratory glassware - Single-volume pipettes
ISO 835 Laboratory glassware - Graduated pipettes

2022 GB/T 41939-2022 Rubber—Determination of magnesium content by atomic absorption spectrometry