ISO 5796:2000 橡胶配料成分.天然碳酸钙.试验方法

标准编号：ISO 5796:2000

中文名称：橡胶配料成分.天然碳酸钙.试验方法

英文名称：Rubber compounding ingredients — Natural calcium carbonate — Test methods

发布日期：2000-09

标准范围

1.1本国际标准规定了天然碳酸钙的评价方法（白垩或石灰石）磨成干粉用于橡胶工业。注1天然碳酸钙根据细度和化学纯度以及典型物理和橡胶工业中使用的化学性质在资料性附录D中给出。注2本国际标准不包括从溶液中沉淀制备的碳酸钙。1.2本国际标准列出了两套分析方法。在正文（4.8.2至4.8.4)，给出了传统的分光光度法；这些都是过时的、耗时的并且使用氯化溶剂。建议逐步淘汰这些方法，代之以原子吸收法附录A、B和C中列出的方法。

1.1 This International Standard specifies the methods to be used for the evaluation of natural calcium carbonate(chalk or limestone) ground to a dry powder for use in the rubber industry.NOTE 1 Classification of natural calcium carbonate according to fineness and chemical purity and typical physical andchemical properties for use in the rubber industry are given in informative annex D.NOTE 2 This International Standard does not cover calcium carbonates prepared by precipitation from solution.1.2 There are two sets of analytical methods listed in this International Standard. In the body of the text (4.8.2 to4.8.4), the traditional spectrophotometric methods are given; these are obsolescent, time-consuming and use achlorinated solvent. It is recommended that these methods be phased out and replaced by the atomic absorptionmethods listed in annexes A, B and C.

标准预览图