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The Z1403 standard will update flow rate and flush volume assumptions that have been industry standard since the 1940s and establish IAPMO’s widely adopted Water Demand Calculator as an ANSI/CAN standard.
Oversizing a domestic water system can lead to aging water and stagnation, the two biggest factors in waterborne pathogen growth. Yet modern plumbing codes still require or strongly recommend outdated sizing methods such as Hunter’s Curve, doing our building owners a disservice and putting the public at risk.
ASSE International is seeking working group members to participate in the development of four American National Standards: ASSE 1391, ASSE 7000, ASSE 10000, and ASSE 19000.
Funding under the Environmental Protection Agency’s Reducing Embodied Greenhouse Gas Emissions for Construction Materials and Products grant program would supports expansion of Environmental Product Declarations in Washington and Oregon.