B72;G35 标准查询与下载

ISO 19846:2017 再生橡胶. 编码和分类系统

This document specifies: — a coding system of reclaimed natural rubber and reclaimed isobutylene-isoprene (IIR) rubber; — a numeric system to classify reclaimed rubber.

Reclaimed rubber - Coding and classification system

BS ISO 2005:2014 天然橡胶胶乳浓缩物. 残渣含量的测定

Rubber latex, natural, concentrate. Determination of sludge content

BS 6057-3.2:1997 橡胶乳.第3部分:试验方法.第2节:固态物质总含量测定

This International Standard specifies a method for the determination of the solids content of natural rubber latex concentrate and synthetic rubber latex. The method is not necessarily suitable for latex from natural sources other than Hevea brasiliensis, for vulcanized latex, for compounded latex or for artificial dispersions of rubber.

Rubber latices - Methods of test - Determination of total solids content of rubber latices

ISO 124:1997 胶乳 橡胶 固态物质总含量的测定

This International Standard specifies a method for the determination of the solids content of natural rubber latex concentrate and synthetic rubber latex. The method is not necessarily suitable for latex from natural sources other than Hevea brasiliensis, for vulcanized latex, for compounded latex or for artificial dispersions of rubber.

Latex, rubber - Determination of total solids content

NF T43-006:1997 橡胶试验混合料.制备、混合和硫化.设备和程序

Rubber test mixes. Preparation, mixing and vulcanization. Equipment and procedures.

NF T42-015:1997 橡胶胶乳.5℃-40℃间密度的测定

Rubber latex. Determination of density between 5 degrees Celsius and 40 degrees Celsius.

NF T42-010:1997 橡胶胶乳.凝结物(筛渣)含量的测定

Rubber latex. Determination of coagulum content (sieve residue).

BS 6057-3.9:1996 橡胶胶乳.试验方法.pH值测定

This International Standard specifies a method for the determination of the pH of polymer dispersions and rubber latices (natural and synthetic) by means of a pH-meter equipped with a combined glass and silver reference electrode. The method is also suitable for prevulcanized latex and compounds containing polymer dispersions or rubber latices, including adhesives. NOTE 1 The accuracy of the method decreases at pH values above 11. Users should note that this edition of ISO 976 not only represents a revision of the previous edition, but also supersedes ISO 1148:1980, Plastics —Aqueous dispersions of polymers and copolymers —Determi-nation of pH. This edition represents a harmonized version of the two standards. One of the major changes in this new edition of ISO 976 is the use of a combined electrode rather than the separate electrodes used in the previous edition, the combined electrode being considered superior to the separate electrodes since the latter are prone to latex deposits blocking the electro-lyte junction, thus adversely affecting repeatability. Although older-type twin electrodes are capable of giving accurate results, they should be progressively replaced because of this problem of cleaning and repeatability.

Rubber latices - Methods of test - Determination of pH