Standard No.:	GB/T 12702-1999
English Name:	Butadiene for industrial use--Determination of tert-butyl-catechol (TBC)[4-(1,1-dimethylethyl)-1,2-benzenediol]--High performance liquid chromatographic method
Chinese Name:	工业用丁二烯中特丁基邻苯二酚（TBC）的测定 高效液相色谱法
Chinese Classification:	G15    Organic chemicals in general
Professional Classification:	GB    National Standard
ICS Classification:	71.080.10 71.080.10    Aliphatic hydrocarbons 71.080.10
Issued by:	China State Bureau of Quality and Technical Supervision
Issued on:	1999-08-01
Implemented on:	2000-6-1
Status:	superseded
Superseded by:	GB/T 6020-2008 Butadiene for industrial use—Determination of tert-butyl-catechol (TBC)
Superseded on:	2009-2-1
Superseding:	GB/T 12702-1990 Butadiene for industrial use--Determination of tert-butyl-catechol (TBC)4-(1,1-dimethylethyl)-1,2-benzenediol--High performance liquid chromatographic method
Language:	English
File Format:	PDF
Word Count:	2500 words
Price(USD):	300.0
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本标准规定了测定工业用1，3-丁二烯中特丁基邻苯二酚［4-(1,1-二甲基乙基)-1，2-苯二酚或简称TBC］含量的高效液相色谱法。阻聚剂TBC也能用分光光度法(GB/T6020)测定,但该法不能区分有活性的阻聚剂及其已没有活性的氧化产物，而本法却能直接测得活性ＴＢＣ的含量，适用于TBC含量范围为0~250mg/kg的丁二烯试样。注意：1TBC的熔化或浓缩溶液对人体皮肤有强烈的刺激作用，如误入口中则更有毒性，操作中应予以注意。２处理丁二烯的操作步骤应在通风橱中进行，且远离明火，操作者也应采取个人劳保措施(如戴手套和护目镜等)。