Ill. Admin. Code tit. 41 § 175.435

Current through Register Vol. 48, No. 45, November 8, 2024

Section 175.435 - Pressure Testing of Tanks or Lines

a) The use of air or non-inert gases to test underground storage tanks or piping containing, or that have contained, flammable or combustible liquids is prohibited.

b) Approved tank or line precision testing with inert gases (nitrogen and helium) may be utilized.

c) Prior to the precision test, preliminary air tests may be used for tanks cleaned and vapor freed for the purposes of testing manway coverplates or gaskets.

Ill. Admin. Code tit. 41, § 175.435

Amended at 42 Ill. Reg. 10476, effective 10/13/2018