Steel products for pressure purposes — Quality requirements — Part 6: Submerged arc longitudinally o...
Specifies the quality requirements for tubes which are applied for pressure purposes at room temperatur, at low temperatures or at elevated temperatures in cases where the creep properties are not the ruling characteristics for design. Does not cover casing, tubing, drill pipe and linepipe for use by the oil and natural gas industries and tubes for the transport of gas, water and sewage.
Sulphuric acid for industrial use — Determination of arsenic content — Silver diethyldithiocarbamate...
Describes a method applicable to products having aresenic contents equal to or greater than 0,1 mg/kg. As far as principle, the reagents and apparatus to be used are concerned, reference is made to ISO 2590, with some modifications added. For example, the reduction of arsenic by zinc is carried out in sulphuric acid medium. Provides information on the expression of results and the particulars to…
Hydrochloric acid for industrial use — Determination of arsenic content — Silver diethyldithiocarbam...
Describes a method applicable to products having arsenic contents equal to or greater than 0,2 mg/kg. As far as principle, reagents and apparatus to be used are concerned, reference is amde to ISO 2590. Provides information on the expression of results and the particular to be included in the test report. The annex lists ISO publications covering the same subject.
Ammonium sulphate for industrial use — Determination of arsenic content — Silver diethyldithiocarbam...
Describes a method applicable to products having arsenic contents euqal to or greater than 0,1 mg/kg. The principle consists in dissolving a test portion, acidifying it with hydrochloric acid solution and applying the general method as described in ISO 2590. Provides information on the expression of results and the particulars to be included in the test report. The annex lists ISO publications…