GB/T 41943-2022 (English Version) PDF

Standard No.: GB/T 41943-2022
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 41943-2022

Scope: This document describes two methods for determining the amount of bales on the film used for the overwrapping of natural rubber bales: --- ashing method; --- brushing or scraping method. The ashing method is suitable for the determination of the amount of rubber coating that is not affected by ashing. The brushing or scraping method is suitable for the determination of the amount of rubber coating on the rubber surface without holes. Note 1: For coatings containing carbonates or organic substances that will be affected by ashing, the measurement results of the ashing method will be low. Note 2: Although the brushing or scraping method is faster, for rubber with holes on the surface, since the coating material will penetrate into the holes, using this method will make it difficult to remove the coating. Note 3: "Natural Rubber Grade Quality and Packaging International Standard" (Green Book) [In ter na ti ona lSt anda r dso fQua lit ck i ngf o rNa tural yandPa Rubbe rGr ade s (Gre enBook)] gives Information on the coating quantity of the rubber coating (see Appendix A).

GB/T 41943-2022 Referenced Document

2022 GB/T 41943-2022 Natural rubber in bales—Determination of the amount of bale coating