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Welded steel tubes for pressure purposes — Technical delivery conditions — Part 5: Submerged arc-welded unalloyed and alloyed steel tubes with specified low temperature properties

Welded steel tubes for pressure purposes — Technical delivery conditions — Part 6: Longitudinally welded austenitic stainless steel tubes

Dentistry — Brazing materials

Optics and photonics — Optical transfer function — Definitions and mathematical relationships

Optics and photonics — Optical transfer function — Principles and procedures of measurement

Optics and photonics — Optical transfer function — Application — Part 3: Telescopes

Optics and optical instruments — Test lenses for calibration of focimeters — Part 1: Reference lenses for focimeters used for measuring spectacle lenses

Optics and optical instruments — Test lenses for calibration of focimeters — Part 2: Test lenses for focimeters used for measuring contact lenses

Pliers and nippers — Slip joint pliers — Dimensions and test values

Microscopes — Graticules for eyepieces

Microscopes — Interfacing dimensions for imaging components

Hygrothermal performance of buildings and building materials — Physical quantities for mass transfer — Vocabulary

Ductile iron pipes, fittings, accessories and their joints — Thermal preinsulated products

Animal and vegetable fats and oils — Determination of water content — Entrainment method

Plastics — Determination of resistance to wear by abrasive wheels

Textiles — Weaves — Coding system and examples — Technical Corrigendum 1

Optics and optical instruments — Veiling glare of image forming systems — Definitions and methods of measurement

Air quality — Stratified sampling method for assessment of ambient air quality

Animal and vegetable fats and oils — Determination of titre

Anaesthetic and respiratory equipment — Heat and moisture exchangers (HMEs) for humidifying respired gases in humans — Part 1: HMEs for use with minimum tidal volumes of 250 ml