Standard for Isolating Bushings for Steel Underground Tanks Protected with External Corrosion Protection Systems

Designation Number:
ULC-S631
Status:
Proceeding to development
SDO Comment Period Start Date:
SDO Comment Period End Date:
Posted On:

Scope:

These requirements cover low profile nylon isolating bushings with internal and external threads and component thread sealant which are intended for use in the external corrosion protection of underground steel tanks which have been installed in accordance with requirements contained in the standard for External Corrosion Protection Systems for Steel Underground Tanks for Flammable and Combustible Liquids, CAN/ULC-S603.1.

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