Making sense of these standards and the advantages/disadvantages of each has been topic of many presentations, papers, and discussions in the affected industries over the past several years. Organizations such as API, ISO, MESC, ANSI, and TA-LUFT all have established valve and/or packing test standards, with possible variations to those given standards. This has led to a wide variety of test standards. Many standards organizations have established various test standards to assess the fugitive emissions performance of valve packing and overall valve emissions. Most recently, there has been a focus on replacing the “R” or “Repair” in LDAR with a more proactive, preventative approach that focuses on valve design and low emissions (Low E) performance on the manufacturer level. Many companies have implemented Leak Detection and Repair (LDAR) programs, and industry groups have focused efforts on helping member companies decrease valve emissions. Environmental Protection Agency (EPA) and individual states have set increasingly stringent consent decrees for fugitive emissions from industrial facilities.
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