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Petroleum products. Determination of bromine number of distillates and aliphatic olefins. Electrometric method.

ICS
71.080.10;75.080
CCS
E30
发布
1998-12-01
实施
1998-12-20

Identical with IP 130/98.

Methods of test for petroleum and its products - Petroleum products - Determination of bromine number of distillates and aliphatic olefins - Electrometric method

ICS
71.080.10;75.080
CCS
E30
发布
1998-03-01
实施
1998-03-01

This International Standard specifies a method for the determination of the bromine number of the following materials: a) petroleum distillates that are substantially free of material lighter than 2-methylpropane, and that have 90 %(V/V) (i.e. volume fraction 90 %) distillation recovery temperatures under 327 ℃. The method is generally applicable to gasolines (including leaded, unleaded and oxygenated fuels), kerosines and distillates in the gas oil range that fall within the following limits: 90 %(V/V) recovery distillation Bromine number, max. temperature (ISO 3405) (see note 1) Under 205℃ 175 205 ℃ to 327 ℃ 10 b) commercial olefins that are essentially mixtures of aliphatic monoolefins and that fall within the range of 95 to 165 bromine number (see note 1). The method has been found suitable for such materials as commercial propene trimer and tetramer, butene dimer, and mixed nonenes, octenes and heptenes. The method is not suitable for normal alpha-olefins. NOTES 1 These limits are imposed since the precision of the method has been determined only up to or within the range of these bromine numbers. 2 The value of the bromine number is an indication of the quantity of bromine-reactive constituents, not an identification of constituents. Annex A and table A.1 give information related to the use of this International Standard as a measure of olefinic unsaturation.

Petroleum products - Determination of bromine number of distillates and aliphatic olefins - Electrometric method

ICS
71.080.10;75.080
CCS
E30
发布
1996-10
实施

この規格は,イソブタンより低沸点の成分を含まず,J1S K 2254の常圧法による90容量%留出温度が205℃未満で,かつ,臭素価が100 gBr以下/100 g及び90容量%留出温度が205-330℃ (),で,かつ,10 gBr以下/100g()の石油製品の臭素価を電気滴定法によって測定する方法について規定する。注() 90容量%留出温度が330℃を超え5.50℃までの石油製品並びにJ1S C 2101に規定する3種1号及び3種2号電気絶縁油の臭素価を測定する場合,精度は適用しない。 () 臭素価1 gBr/100 g以下の試料については,附属書[石油製品一臭素指数試験方法(電気滴定法)]によって求めた臭素指数を,臭素価の代わりに用いてもよい。

Petroleum distillates and commercial aliphatic olefins -- Determination of bromine number -- Electrometric method

ICS
71.080.10;75.080
CCS
E30
发布
1996-09-20
实施



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