AWWA D120: Thermosetting Fiberglass-Reinforced Plastic Tanks
SDO: AWWA: American Water Works Association
DOD Adopted ANSI Approved Approved
Th is standard describes the composition, performance requirements, construction practices and workmanship, design, and methods of testing thermosetting fiberglass-reinforced plastic (FRP) tanks for the storage of water or other liquids used in water supply service.
Limit of standard. Th is standard is limited to atmospheric pressure, vented, cylindrical, and spherical tanks, installed either aboveground or underground.
Temperature limits. Th is standard is limited to tanks whose service temperature does not exceed 180°F (82°C) for aboveground tanks and 150°F (66°C) for underground tanks. Consult the tank manufacturer for recommended temperature limits (both minimum and maximum) for specific equipment and service requirements.
Service limits. The service limits for environmental exposure and structural loads shall be determined based on tests of laminates that are determined by the engineer to be representative of the materials and methods of fabrication used in the tank.
The purpose of this standard is to provide purchasers, manufacturers, and suppliers with the minimum requirements for thermosetting FRP tanks, including material and design.
This standard can be referenced in specifications for purchasing and receiving thermosetting FRP tanks. This standard can be used for manufacturing this type of tank. The stipulations of this standard apply when this document has been referenced, and then only to FRP tanks.
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