Products used for treatment of water intended for human consumption. Iron (III) hydroxide oxide not-eligible Level 2: BS EN ISO21534

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BS EN 4540 specifies the required characteristics

Products used for treatment of water intended for human consumption. Iron (III) hydroxide oxide not-eligible Level 2: BS EN ISO215341 Scope This European Standard is applicable to iron (III) hydroxide oxide used for the treatment of water intended for human consumption. It describes the characteristics of iron (III) hydroxide oxide and specifies the requirements and the corresponding test methods for iron (III) hydroxide oxide. It gives information on its use in water treatment.