EPA 1633, PFAS, ASTM D8421, MUR
Merit Laboratories, Inc.
PFAS by EPA 1633A and ASTM D8421 Included in ...

The analysis of PFAS by EPA 1633A and ASTM D8421 is part of the U.S. EPA’s Methods Update Rule (MUR) Rule 22. The action will promulgate EPA into 40 CFR Part 136. Also part of this action, PFAS method ASTM D8421 is proposed to be codified. 

PFAS by EPA 1633A and ASTM D8421 Included in EPA Methods Update Rule 22

HFPO

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Significant Impact of Proposed RCRA PFAS-Related Rules

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Significant Impact of Proposed RCRA PFAS-Related Rules

As part of a significant update to RCRA, the U.S. EPA announced proposed rule amendments  to add nine PFAS compounds as hazardous constituents.  The proposed addition of these nine PFAS compounds as hazardous constituents is expected to have a wide-ranging impact on the environmental industry.

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The U.S. EPA Issues the Next TSCA Test Order Under National PFAS Testing Strategy

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The U.S. EPA Issues the Next TSCA Test Order Under National PFAS Testing Strategy

The U.S. Environmental Protection Agency (EPA) formally announced the issuance of the next Toxic Substances Contract Act (TSCA) test order requiring PFAS testing.  The new test order is being made under the National PFAS Testing Strategy. The EPA announced the action on January 4, 2023, which orders companies to conduct and submit testing for the PFAS substance HFPO. HFPO (CAS # 428-59-1), also known as trifluoro(trifluoromethyl)oxirane, is used in plastics manufacturing.  

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PFAS Limits Significantly Lowered in EPA Health Advisories

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PFAS Limits Significantly Lowered in EPA Health Advisories

The U.S. Environmental Protection Agency (EPA) released updated health advisories in June for PFAS compounds in drinking water. These new limits significantly reduce the guidelines previously established in 2016. The new drinking water interim health advisories reduce the limit for both PFOA (perfluoro-octanoic acid) and PFOS (perfluoro-octane sulfonate).