標準號：ISO 3839-1996
中文標準名稱：石油產品 餾份和脂肪族烯烴溴值的測定 電位滴定法
英文標準名稱：Petroleum products - Determination of bromine number of distillates and aliphatic olefins - Electrometric method
標準類型：E30
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：E30
國際標準分類號：71.080.10;75.080
適用范圍：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.