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ISO 2626:1973 Copper — Hydrogen embrittlement test
ISO 886:1973 Aluminium and aluminium alloys — Determination of manganese — Photometric method (Manganese content between 0,005 and 1,5 %)
ISO 808:1973 Aluminium and aluminium alloys — Determination of silicon — Spectrophotometric method with the reduced silicomolybdic complex
ISO 793:1973 Aluminium and aluminium alloys — Determination of iron — Orthophenanthroline photometric method
ISO 2762:1973 Hydrochloric acid for industrial use — Determination of soluble sulphates — Turbidimetric method
ISO 797:1973 Aluminium and aluminium alloys — Determination of silicon — Gravimetric method
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