Historical

IAPMO PS 23-2019

Dishwasher drain air gaps

This standard covers flow characteristics, dimensions, clean ability, back flow and other significant properties of construction, provisions for proper installation of the finished product, together with methods of marking and identification. The dishwasher drain air gaps with single or multiple inlet ports covered by this standard are intended for use with ordinary domestic type automatic dishwashers connected to the sanitary waste system.

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International Association of Plumbing and Mechanical Officials [iapmo]

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