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ISO 2868:1973 Surface active agents — Detergents — Anionic-active matter stable to acid hydrolysis — Determination of trace amounts
ISO 2869:1973 Surface active agents — Detergents — Anionic-active matter hydrolyzable under alkaline conditions — Determination of hydrolyzable and non-hydrolyzable anionic-active matter
ISO 1041:1973 Essential oils — Determination of freezing point
ISO 796:1973 Aluminium alloys — Determination of copper — Electrolytic method
ISO 809:1973 Magnesium and magnesium alloys — Determination of manganese — Periodate photometric method (Manganese content between 0,01 and 0,8 %)
ISO 2773-2:1973 Test conditions for pillar type vertical drilling machines — Testing of the accuracy — Part 2: Practical test
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