Wisconsin Administrative Code
Department of Natural Resources
NR 600-699 - Environmental Protection - Hazardous Waste Management
Chapter NR 661 - Hazardous Waste Identification And Listing
Subchapter BB - Air Emission Standards for Equipment Leaks
Section NR 661.1055 - Standards: sampling connection systems
Universal Citation: WI Admin Code ยง NR 661.1055
Current through August 26, 2024
(1) Each sampling connection system shall be equipped with a closed-purge, closed-loop, or closed-vent system. This system shall collect the sample purge for return to the process or for routing to the appropriate treatment system. Gases displaced during filling of the sample container are not required to be collected or captured.
(2) Each closed-purge, closed-loop, or closed-vent system as required in sub. (1) shall meet one of the following requirements:
(a) Return the
purged process fluid directly to the process line.
(b) Collect and recycle the purged process
fluid.
(c) Be designed and operated
to capture and transport all the purged process fluid to a material management
unit that complies with the applicable requirements specified in ss. NR 661.1084 to 664.1086 or a control device that complies with the requirements
specified in s. NR 661.1060.
(3) In-situ sampling systems and sampling systems without purges are exempt from the requirements under subs. (1) and (2).
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