Normativa ISO UNE gratis

Fecha de publicación: 01/11/1976 Liquid chemical products for industrial use — Determination of density at 20 degrees C ISO 758:1976

Fecha de publicación: 01/11/1976 Hot-rolled steel sections — Part 5: Equal-leg angles and unequal-leg angles — Tolerances for metric and inch series ISO 657-5:1976

Fecha de publicación: 01/11/1976 Hand reamers ISO 236-1:1976

Fecha de publicación: 01/11/1976 Washing powders — Determination of total phosphorus(V) oxide content — Quinoline phosphomolybdate gravimetric method ISO 4313:1976

Fecha de publicación: 01/12/1976 Aluminium and aluminium alloys — Determination of chromium — Spectrophotometric method using diphenylcarbazide, after extraction ISO 3978:1976

Fecha de publicación: 01/12/1976 Essential oils (containing tertiary alcohols) — Estimation of free alcohols content by determination of ester value after acetylation ISO 3794:1976

Fecha de publicación: 01/12/1976 Statistical interpretation of data — Power of tests relating to means and variances ISO 3494:1976

Fecha de publicación: 01/12/1976 Alphanumeric character sets for optical recognition — Part 2: Character set OCR-B — Shapes and dimensions of the printed image ISO 1073-2:1976

Fecha de publicación: 01/12/1976 Cinematography — Optical printing ratios for enlargement and reduction of motion-picture film images — Specifications ISO 4238:1976

Fecha de publicación: 01/01/1977 Spices and condiments — Determination of degree of fineness of grinding — Hand sieving method (Reference method) ISO 3588:1977