71.080.15;75.080 标准查询与下载

TIS 1829-2005 石油产品和烃类溶剂.硫醇类和其他硫类的测定.检硫液法

Petroleum products and hydrocarbon solvents.detection of thiols and other sulfur species.doctor test

KS M ISO 5275:2003 石油产品和烃类溶剂.硫醇类和其他硫类的测定.(博士法试验.定硫醇)

이 규격은 방향족 탄화수소의 메르캅탄을 확인하기 위한 닥터 시험 방법에 대하여 규정한다

Aromatic hydrocarbons－Test for presence of mercaptans(thiols)－Doctor test

ISO 5275:2003 石油产品和烃类溶剂.硫醇类和其他硫类的测定.(博士法试验-定硫醇)

This International Standard specifies a procedure (Doctor test) for the detection of thiols (mercaptans), hydrogen sulfide and elemental sulfur in hydrocarbon solvents and distillate petroleum feedstocks and products. Preliminary procedures also detect the presence of peroxides and phenolic substances, which, when present in more than trace quantities, make the application of this International Standard inappropriate. Carbon disulfide, at relatively high concentrations [above 0,4 % (m/m) sulfur], also interferes with the interpretation of the test by causing darkening of the aqueous layer. NOTE For the purposes of this International Standard, the term "% (m/m)" is used to represent the mass fraction of a material. The test is a go/no-go procedure with a threshold value of thiol concentration dependent on the material under test. It is frequently used as a substitute for the quantitative determination of thiol content.

Petroleum products and hydrocarbon solvents - Detection of thiols and other sulfur species - Doctor test