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2nd edition, amendment 6


Current version: Effective on 10 October 2011

All of the Acceptable Solutions and Verification Methods relating to G1 are contained in one document.

  • G1/AS1 provides a means to show compliance for the number and location of personal hygiene facilities in occupied buildings.   It gives a method to calculate numbers of sanitary fixtures.  It gives design solutions for the means of constructing and installing sanitary fixtures; flushing systems; examples of accessible facilities layouts; cubicles and lobbies.

The toilet calculator provides an estimate for numbers of sanitary fixtures.

Cited content in this document can be found on the Building CodeHub website.

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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: