ISO 5478-2006 橡胶.苯乙烯含量的测定.硝化法

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                   【英文标准名称】:     Rubber - Determination of styrene content - Nitration method            【原文标准名称】:     橡胶.苯乙烯含量的测定.硝化法            【标准号】:     ISO 5478-2006            【标准状态】:     现行            【国别】:     国际            【发布日期】:     2006-10    【实施或试行日期】: 【发布单位】: 国际标准化组织(IX-ISO)【起草单位】: ISO/TC 45【标准类型】: ()【标准水平】: ()【中文主题词】: 化学分析和试验;含量测定;弹性体;实验室器皿;材料试验;方法;硝酸盐;橡胶;橡胶技术;苯乙烯;丁苯橡胶;试验【英文主题词】: Chemical analysis and testing;Determination of content;Elastomers;Laboratory ware;Materials testing;Methods;Nitrates;Rubber;Rubber technology;Styrene;Styrene-butadiene rubber;Testing【摘要】: This International Standard specifies a method for the determination of the styrene content of all types ofstyrene-butadiene rubber (SBR), including oil-extended types.The method is applicable to styrene-butadiene rubbers reinforced with styrene homopolymer, to give the totalstyrene content. The method is also applicable for determining the styrene in block copolymers containing upto 50 % (by mass) of styrene.It is applicable to vulcanizates of mixtures of SBR with other polymers (NR, BR, IR and CR) and is considereda method for estimating the SBR content of mixtures, if the styrene content of the SBR is known and providedthat no other styrene-containing materials are present.Any other non-extractable aromatic material which absorbs in the specified spectral region will interfere withthis method.The procedure may give low results when the content of mineral fillers insoluble in nitric acid exceeds 5 % (by mass).【中国标准分类号】: G34【国际标准分类号】: 83_060【页数】: 6P.;A4【正文语种】: 英语