This International Standard specifies photometric methods for the determination of manganese, after oxidation with sodium periodate, in rubbers and rubber latices. Both methods contain provisions for analysis of chlorine-containing rubber. Clause 3 specifies a method for compounded or vulcanized rubbers which is not affected by heavy loadings of fillers such as synthetic and natural silicates or calcium carbonates in various forms, or by the presence of compounding ingredients which form an insoluble phosphate under the conditions of the test. Clause 4 specifies a method for raw and compounded natural and synthetic rubbers and latices which do not contain heavy loadings (more than about 10%) of inert silicate fillers or any ingredient such as titanium dioxide which under the conditions of test will form an insoluble phosphate.
BS ISO 7780-1998由英国标准学会 GB-BSI 发布于 1998-10-15,并于 1998-10-15 实施。
BS ISO 7780-1998 在中国标准分类中归属于: G34 合成橡胶基础标准与通用方法,在国际标准分类中归属于: 83.040.10 胶乳和生橡胶,83.060 橡胶。
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