Rechercher

Specifies the numbering of and transmittance requirements for filters intended to protect operatives performing manual work involving welding, braze welding, arc gouging and thermal cutting. It also gives guidance on the selection and use of these filters. Optical test methods are the subject of ISO 4854. Non-optical test methods are the subject of ISO 4855.

Specifies dimensions, materials, quality of manufacture and finish for guardrails and stanchions which are fitted on exposed freeboard and superstructure decks of cargo ships. Does not apply for guardrails which are fitted near compasses. These requirements comply with the regulations of the International Convention on Loadlines 1966.

Specification of a visual method of determining the number of impurities and foreign particles in polyvinylchloride resin. About 200 g of resin are flattened between a rigid white plate and a glass sheet containing a grid. The impurities and foreign particles visible in 25 squares (= 225 cm ) and having a diameter equal or greater than 0,250 mm are counted. Expression of the result by…

Specifies a method applicable to products having phosphorus contents equal to or greater than 0,002 % (m/m). The principle is based on alkaline fusion of a test portion with a mixture of sodium carbonate and boric acid, dissolution of the fused mass in nitric acid, neutralization of suitable aliquot portion with sodium hydroxide solution, reaction with acid ammonium molybdate solution to form a…

Establishes a method for checking the grain size of diamond or cubic boron nitride as used for the manufacture of industrial products. Applies to grains of particle size between 41 and 1 180 um. Gives the grit size designation, the size limits, the sieves to be used in determining them and the procedure to be adpted for checking the size.

Adopts ANSI standard X3.53-1976 and French standard NF Z 65-500 as PL/1 programming language standard for the English and French versions, respectively.