Water

PFAS EPA Method 537.1

The 18 PFAS compounds of EPA Method 537.1: PFOA, PFOS and the other long-chain acids, plus PFTrDA, PFTeDA, NMeFOSAA and NEtFOSAA, which Method 533 does not measure. Fourteen of its compounds are also on the 533 list.

Turnaround

Ships free in 1–2 business days, with a prepaid return label.

Cancel any time before it ships. Kits can’t be returned once shipped. Refund policy

Connecticut, Maine and New Jersey orders need a short acknowledgment at checkout.

What it finds

Eighteen per- and polyfluoroalkyl substances, each on its own line, including PFOA, PFOS, PFNA, PFHxS and HFPO-DA (GenX).

  • Perfluorobutanesulfonic acid (PFBS)
  • Perfluorohexanoic acid (PFHxA)
  • Perfluoroheptanoic acid (PFHpA)
  • Perfluorohexanesulfonic acid (PFHxS)
  • Perfluorooctanoic acid (PFOA)
  • Perfluorooctanesulfonic acid (PFOS)
  • Perfluorononanoic acid (PFNA)
  • Perfluorodecanoic acid (PFDA)
  • Perfluoroundecanoic acid (PFUnA)
  • Perfluorododecanoic acid (PFDoA)
+ 8 more
  • Perfluorotridecanoic acid (PFTrDA)
  • Perfluorotetradecanoic acid (PFTeDA)
  • N-Methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)
  • N-Ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)
  • HFPO-DA (GenX)
  • 4,8-Dioxa-3H-perfluorononanoic acid (ADONA)
  • 9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS)
  • 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)

In the box

  • PFAS-free sample bottles, pre-labeled
  • Field blank bottle
  • Nitrile gloves
  • Cold pack and insulated return mailer
  • Prepaid return label
  • Collection instructions

When to order

The same worries as Method 533 at a lower price, or when you want the four compounds that only this method reports.