Contractor Q and As-PFAS Chemical Testing.pdf
PDF 130 KB Posted
- Attached to
- Chemical Testing Federal contract opportunity
- Solicitation number
- 12318723Q0458
- Issued by
- Department of Agriculture Forest Service
About this file
This document contains questions and answers regarding a federal solicitation for PFAS chemical testing services. The solicitation is seeking testing of samples to either confirm the absence of 36 to 40 PFAS analytes using EPA Method 537M or ASTM D7979, or to determine the concentration range of PFOS/PFOA if expected to be present. Acceptable methods include DOD Method 1633 which uses labeled analogs. Additional PFAS compounds can be included in testing. The regulatory body is agreeable to robust analysis without becoming prohibitively expensive. Half of the samples are class A firefighting foam concentrates.
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Other files for this federal contract opportunity
| File | Type | Posted |
|---|---|---|
| Water Enhancer 1.pdf | ||
| Water Enhancer 2.pdf | ||
| Class A Firefighting Foam Safety Data Sheet 1.pdf | ||
| Class A Firefighting Foam Safety Data Sheet 5.pdf | ||
| Class A Firefighting Foam Safety Data Sheet 2.pdf | ||
| Class A Firefighting Foam Safety Data Sheet 4.pdf | ||
| Class A Firefighting Foam Safety Data Sheet 3.pdf | ||
| RFQ-12318723Q0458 Updated on 21 August 2023.pdf | ||
| RFQ-12318723Q0458-PFAS Chemical Testing Updated.pdf | ||
| SOW-PFAS Chemical Testing.pdf | ||
| RFQ-12318723Q0458-PFAS Chemincal Testing.pdf | ||
| Sol.-12318723Q0458-PFAS Chemincal Testing.pdf |
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Text version
Contractor Q&As
Solicita�on: 12318723Q0458/PFAS Chemical Tes�ng
Req.: 1086382
SAM.gov Link: htps://sam.gov/opp/0580d2895a6147aa841a45d66a7f9fd1/view
1. For the request of “to ASTM D7979 or the EPA’s Modified Method 537 (537M) for determining presence of PFAS analytes”, please send us a copy of the ASTM method. We will need to evaluate if our LC/MS can perform the test and to es�mate the cost.
Answer: See answer to ques�on 3, we do not have copies of these ASTMs available for distribu�on, only for internal research purposes through our FS Library.
2. And the test requires “ISO 17025” accredita�on, so the government wants the studies to be GLP, correct?
Answer: Yes
3. Is method DOD 1633 acceptable? The method uses a labeled analog for all 40 analytes to increase the accuracy of quan�ta�on, If not why is 537M chosen over DOD 1633?
Answer: Yes this method is acceptable, ul�mately we want to be able to provide results that comply with EPA requirements.
4. We would like to propose this list for analysis as it is a more inclusive list. Would the regula�ng body be opposed to amending the 36 to 40 PFAS analytes below?
Answer: The added compounds are certainly agreeable, we would like the analysis to be as robust as possible without becoming prohibi�vely expensive.
• 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid 11-Cl-PF3OUdS
• 9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acd 9Cl-PF3ONS
• 4,8-Dioxa-3H-perfluorononanoic acid ADONA
• Hexafluoropropylene oxide dimer acid HFPO-DA
• Nonafluoro-3,6-dioxaheptanoic acid NFDHA
• Perfluorobutanoic acid PFBA
• Perfluorobutanesulfonic acid PFBS
• 1H,1H, 2H, 2H-Perfluorodecane sulfonic acid 8:2FTS
• Perfluorodecanoic acid PFDA
• Perfluorododecanoic acid PFDoA https://sam.gov/opp/0580d2895a6147aa841a45d66a7f9fd1/view
• Perfluoro(2-ethoxyethane)sulfonic acid PFEESA
• Perfluoroheptanesulfonic acid PFHpS
• Perfluoroheptanoic acid PFHpA
• 1H,1H, 2H, 2H-Perfluorohexane sulfonic acid 4:2FTS
• Perfluorohexanesulfonic acid PFHxS
• Perfluorohexanoic acid PFHxA
• Perfluoro-3-methoxypropanoic acid PFMPA
• Perfluoro-4-methoxybutanoic acid PFMBA
• Perfluorononanoic acid PFNA
• 1H,1H, 2H, 2H-Perfluorooctane sulfonic acid 6:2FTS
• Perfluorooctanesulfonic acid PFOS
• Perfluorooctanoic acid PFOA
• Perfluoropentanoic acid PFPeA
• Perfluoropentanesulfonic acid PFPeS
• Perfluoroundecanoic acid PFUnA
• N-ethyl perfluorooctanesulfonamidoace�c acid NEtFOSAA
• N-methyl perfluorooctanesulfonamidoace�c acid NMeFOSAA
• Perfluorotetradecanoic acid PFTeDA
• Perfluorotridecanoic acid PFTrDA
• Perfluorodecanesulfonic acid PFDS
• Perfluorododecanesulfonic acid PFDoS
• Perfluorooctanesulfonamide PFOSA
• N-methyl perfluorooctanesulfonamidoethanol NMeFOSE
• N-ethyl perfluorooctanesulfonamidoethanol NEtFOSE
• 3-Perfluoropropyl propanoic acid 3:3 FTCA
• 2H,2H,3H,3H-Perfluorooctanoic Acid 5:3 FTCA
• 3-Perfluoroheptyl propanoic acid 7:3 FTCA
• Perfluorononaesulfonic acid PFNS
• N-methyl perflurooctanesulfonamide NMeFOSA
• N-ethyl perflurooctanesulfonamide NEtFOSA
5. Are samples expected to contain PFOS/.PFOA - or is the test to confirm the absence of analytes? If PFOS/PFOA is expected, what is the range an�cipated?
Answer: This tes�ng is being performed with the intent to confirm that no PFOS/PFOA is present in the samples. Half of these samples are Class A Firefigh�ng foam concentrates.
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