BS ISO 20712-3:2008 Water safety signs and beach safety flags. Guidance for use has been changed from BS 8504-1:2006 Beach safety flags - Colour, shape and meaning.
BS ISO 20712-3:2008 Water safety signs and beach safety flags. Guidance for use has been changed from BS 8504-2:2006 Beach safety flags - Materials - Requirements and test methods.
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