警告-使用本文件的人员应熟悉正常的实验室实践。 本文件并非旨在解决与其相关的所有安全问题（如有） 使用用户有责任建立适当的安全和健康实践以及 确定监管限制的适用性。本文件规定了天然浓缩胶乳碱度的测定方法。 该方法不一定适用于橡胶树以外的天然来源的乳汁 用于合成橡胶胶乳、复合胶乳、硫化胶乳或橡胶的人工分散体。 注:ISO 13773规定了测定氯丁胶乳碱度的方法。交叉引用:ISO 123ISO 976ISO 13773ISO/TR 9272购买本文件时可获得的所有现行修订均包含在购买本文件中。

WARNING — Persons using this document should be familiar with normal laboratory practice. This document does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and determine the applicability of regulatory limitations.This document specifies a method for the determination of the alkalinity of natural rubber latex concentrate. The method is not necessarily suitable for latices from natural sources other thanHevea brasiliensisor for synthetic rubber latices, compounded latex, vulcanized latex or artificial dispersions of rubber. NOTE A method for the determination of the alkalinity of polychloroprene latex is specified in ISO 13773.Cross References:ISO 123ISO 976ISO 13773ISO/TR 9272All current amendments available at time of purchase are included with the purchase of this document.