ISO 7780-1998 橡胶和橡胶胶乳 锰含量的测定 高碘酸钠光度法

标准号：ISO 7780-1998
中文标准名称：橡胶和橡胶胶乳 锰含量的测定 高碘酸钠光度法
英文标准名称：Rubber and rubber latices - Determination of manganese content - Sodium periodate photometric methods
标准类型：G34
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：G34
国际标准分类号：83.040.10;83.060
适用范围：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.