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ISO 1388-10:1981 (R2018) Ethanol for industrial use — Methods of test — Part 10: Estimation of hydrocarbons content — Distillation method
ISO 1388-10:1981 (R2018) Ethanol for industrial use — Methods of test — Part 10: Estimation of hydrocarbons content — Distillation method
ISO 6791:1981 (R2014) Carbonaceous materials for the production of aluminium — Pitch for electrodes — Determination of contents of quinoline-insoluble material
ISO 6791:1981 (R2014) Carbonaceous materials for the production of aluminium — Pitch for electrodes — Determination of contents of quinoline-insoluble material
ISO 548:1981 (R2016) Manganese ores — Determination of barium oxide content — Barium sulphate gravimetric method
ISO 548:1981 (R2016) Manganese ores — Determination of barium oxide content — Barium sulphate gravimetric method
ISO 5194:1981 (R2017) Aluminium and aluminium alloys — Determination of zinc content — Flame atomic absorption spectrometric method
ISO 3915:1981 (R2015) Plastics — Measurement of resistivity of conductive plastics
ISO 5194:1981 (R2017) Aluminium and aluminium alloys — Determination of zinc content — Flame atomic absorption spectrometric method
ISO 7213:1981 (R2012) Pulps — Sampling for testing
ISO 3915:1981 (R2015) Plastics — Measurement of resistivity of conductive plastics
ISO 7213:1981 (R2012) Pulps — Sampling for testing