Sodium hexafluorosilicate for industrial use — Determination of sulphur compounds content — Iodometr...
Applicable to products having contents, expressed as sulphate2- , between 0.03 % (m/m) and 0.5 % (m/m). Reduction of the compounds to hydrogen sulphide by heating with a mixture of hydriodic and hypophosphorus acids in the presence of hydrochloric acid. Entrainment of the hydrogen sulphide in a flow of nitrogen and absorption in an excess of ammoniacal cadmium acetate solution. Liberation of the…
Aircraft — Two- and four-pole sealed electromagnetic relays, 2 A and 3 A — Clearance and fixing dime...
Includes the dimensions of relays with a rated breaking capacity equal to 2 A or 3 A. Applies to the relays currently used for aircraft electrical power systems. The characteristics of these relays will be defined in a future International Standard.
Toluene — Determination of hydrocarbon impurities — Gas chromatographic method
Applicable to the quantitative determination of contents of benzene, C8 aromatics and aliphatics up to n-nonane in the range between 0.01 % (m/m) and 1.00 % (m/m). Alternatives that will give equivalent results may also be used. Addition of a known amount of intgernal standard to a test portion and introduction of an aliquot portion of this mixture into a separating column. Sweeping of the…
Method for the Measurement of Sulphur Dioxide in Air
1. Scope
1.1 This Standard applies to the measurement of the concentration of sulphur dioxide in air.
1.2 This Standard sets forth the Pararosaniline Colorimetric Procedure based on the West-Gaeke Method as the reference method for the measurement of sulphur dioxide in the range 25 to 1000 µg·m-3 at 25°C and 101.3 kPa.
Note. All concentrations referred to throughout this Standard…
1. Scope
1.1 This standard applies to two types of new tires for use on passenger
cars and some trucks. The tires are of the bias ply or radial ply
types.
1. Scope
1.1 This standard applies to pneumatic tires, both tube and tubeless types,
and flaps when applicable, for mounting on construction, earthmoving,
mining, and logging equipment, road graders, mobile cranes, and similar
vehicles operated at low speeds and off-the-road.
Examination and Preparation of Drawings to be Microfilmed
Describes the methods and procedures for the examination and
preparation of drawings for microfilming and techniques for their
rehabilitation where necessary. It also identifies the
responsibility of the custodian or originator, and the microfilm
technicians in the processing of sub-standard or defective
drawings, including those that do not conform to CAN2-72.7-M.