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E3/AS1, 2nd edition, amendment 5


Effective on 14 February 2014 until 30 May 2017

All of the Acceptable Solutions and Verification Methods relating to E3 are contained in one document.

  • E3/AS1 gives design solutions for the prevention of fungal growth, accidental overflow and watersplash.  Its details show one means to comply with E3 for junctions and penetrations relating to floor/wall and sanitary fixtures.
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This information is published by the Ministry of Business, Innovation and Employment’s Chief Executive. It is a general guide only and, if used, does not relieve any person of the obligation to consider any matter to which the information relates according to the circumstances of the particular case. Expert advice may be required in specific circumstances. Where this information relates to assisting people: