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ISO 9390:1990 Water quality — Determination of borate — Spectrometric method using azomethine-H
ISO 9247:1990 Earth-moving machinery — Electrical wires and cables — Principles of identification and marking
ISO 7513:1990 Instant tea in solid form — Determination of moisture content (loss in mass at 103 degrees C)
ISO 9808:1990 Solar water heaters — Elastomeric materials for absorbers, connecting pipes and fittings — Method of assessment
ISO 7514:1990 Instant tea in solid form — Determination of total ash
ISO 6079:1990 Instant tea in solid form — Specification
ISO 8954-1:1990 Ferroalloys — Vocabulary — Part 1: Materials
ISO 8954-2:1990 Ferroalloys — Vocabulary — Part 2: Sampling and sample preparation
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