Historical
IAPMO TS 4-2004
STANDARD FOR PRESSURIZED AND NON-PRESSURIZED POTABLE WATER TANKS FOR USE IN RECREATIONAL VEHICLE
This standard covers the physical requirements and tests for the corrosion inhibitors, toxicity, pressures, cleanability and other significant properties of construction and finish. Provisions for proper installation of the finished product are also given, together with methods of marking and identification.
International Association of Plumbing and Mechanical Officials [iapmo]