Manganese ores and concentrates — Determination of potassium and sodium content — Flame atomic emission spectrometric method
1981-02-28
ISO 6327:1981
Gas analysis — Determination of the water dew point of natural gas — Cooled surface condensation hygrometers
1981-02-28
ISO 6303:1981
Pressure vessel steels not included in ISO 2604, Parts 1 to 6 — Derivation of long-time stress rupture properties
1981-02-28
ISO 697:1981
Surface active agents — Washing powders — Determination of apparent density — Method by measuring the mass of a given volume
1981-02-28
ISO 6827:1981
Aluminium and aluminium alloys — Determination of titanium content — Diantipyrylmethane photometric method
1981-01-31
ISO 4913:1981
Textiles — Cotton fibres — Determination of length (span length) and uniformity index
1981-01-31
IEC 60094-1:1981
Magnetic tape sound recording and reproducing systems. Part 1: General conditions and requirements
1980-12-31
IEC 60679-2:1981
Quartz crystal controlled oscillators - Part 2: Guide to the use of quartz crystal controlled oscillators
1980-12-31
IEC 60055-2:1981
Paper-insulated metal-sheathed cables for rated voltages up to 18/30 kV (with copper or aluminium conductors and excluding gas-pressure and oil-filled cables). Part 2: General and construction requirements
