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Road vehicles — Sound signalling devices — Tests after mounting on vehicle — Amendment 1

Surface active agents — Measurement of foaming power — Modified Ross-Miles method

Cranked-link drag chains of welded construction, attachments and sprockets

Cranked-link mill chains of welded construction, attachments and sprockets

Natural gas — Determination of composition and associated uncertainty by gas chromatography — Part 2: Uncertainty calculations

Natural gas — Determination of composition and associated uncertainty by gas chromatography — Part 3: Precision and bias

Natural gas — Determination of composition and associated uncertainty by gas chromatography — Part 5: Isothermal method for nitrogen, carbon dioxide, C1 to C5 hydrocarbons and C6+ hydrocarbons

Natural gas — Extended analysis — Gas-chromatographic method

Natural gas — Calculation of calorific values, density, relative density and Wobbe indices from composition

Natural gas — Determination of mercury — Part 1: Sampling of mercury by chemisorption on iodine

Surface active agents — Washing powders — Determination of apparent density — Method by measuring the mass of a given volume

Nuclear energy — Reference beta-particle radiation — Part 1: Methods of production

Nuclear energy — Reference beta-particle radiation — Part 2: Calibration fundamentals related to basic quantities characterizing the radiation field

Nuclear energy — Reference beta-particle radiation — Part 3: Calibration of area and personal dosemeters and the determination of their response as a function of beta radiation energy and angle of incidence

Automation systems and integration — Numerical control of machines — Program format and definitions of address words — Part 1: Data format for positioning, line motion and contouring control systems

Side and face milling (slotting) cutters with indexable inserts — Dimensions

Indexable hard material inserts with rounded corners, with partly cylindrical fixing hole — Dimensions

Textile fibres — Determination of length and length distribution of staple fibres (by measurement of single fibres)

Buried, high-impact poly(vinyl chloride) (PVC-HI) piping systems for the supply of gaseous fuels — Part 1: Pipes for a maximum operating pressure of 1 bar (100 kPa)

Buried, high-impact poly(vinyl chloride) (PVC-HI) piping systems for the supply of gaseous fuels — Part 2: Fittings for a maximum operating pressure of 200 mbar (20 kPa)