Description

This Standard specifies constructional requirements for water containers (shells) made of composite materials, viz. steel with a copper or copper alloy insert (inner liner), or steel with a bonded inner lining of vitreous enamel or of plastics material.

It gives recommendations on maximum water temperatures, specifies methods of testing the quality of inner linings, and also routine and type test schedules. Identical to AS 1056.3-1991 with modifications for New Zealand conditions.

Cited in the Ministry's Simple House Acceptable Solution.

Scope

This Standard specifies requirements for water heaters with composite shells made for steel and protected as follows:

• (a) with a metallic insert
• (b) with a bonded vitreous enamel lining; and
• (c) with bonded plastics lining.