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[PDF] ISO 619:1981 gratis

Fecha de publicación: 01/12/1981 Manganese ores — Determination of chromium content — Diphenylcarbazide photometric method and silver persulphate titrimetric method ISO 619:1981

[PDF] ISO 549:1981 gratis

Fecha de publicación: 01/12/1981 Manganese ores — Determination of combined water content — Gravimetric method ISO 549:1981

[PDF] ISO 337:1981 gratis

Fecha de publicación: 01/12/1981 Road vehicles — 50 semi-trailer fifth wheel coupling pin — Basic and mounting/interchangeability dimensions ISO 337:1981

[PDF] ISO 320:1981 gratis

Fecha de publicación: 01/12/1981 Manganese ores — Determination of sulphur content — Barium sulphate gravimetric methods and sulphur dioxide titrimetric method after combustion ISO 320:1981

[PDF] ISO 70:1981 gratis

Fecha de publicación: 01/12/1981 Cinematography — 35 mm negative photographic sound record on 35 mm motion-picture film — Position and maximum width dimensions ISO 70:1981

[PDF] ISO 5377:1981 gratis

Fecha de publicación: 01/12/1981 Starch hydrolysis products — Determination of reducing power and dextrose equivalent — Lane and Eynon constant titre method ISO 5377:1981

[PDF] ISO 272:1982 gratis

Fecha de publicación: 01/01/1982 Fasteners — Hexagon products — Widths across flats ISO 272:1982

[PDF] ISO 5282:1982 gratis

Fecha de publicación: 01/01/1982 Aromatic hydrocarbons — Determination of sulphur content — Pitt-Ruprecht reduction and spectrophotometric method ISO 5282:1982

[PDF] ISO 1875:1982 gratis

Fecha de publicación: 01/02/1982 Plastics — Plasticized cellulose acetate — Determination of matter extractable by diethyl ether ISO 1875:1982