FAQ Videos Spectroquant® USEPA Methods Equivalency

1. What methods currently have USEPA approval?

USEPA has issued approval letters for: Equivalency reports are available also for the following:
• Chromate
• Chlorine
• Phosphate
• Sulfate
• Ammonium / Ammonia
• Nitrate
• Nitrite

Download all USEPA documents.

2. What kind of documentation is provided for customers and for

3. What are the benefits of using these test kits?

The Advantages of the Spectroquant® Test Kits:
• Multiple quality control procedures
• Control of the chemical use
• Pre-measured chemicals, ready and easy-to-use
• Quality documentation of the test kits available for all
• Equivalency documentation for selected test kits are

Download all USEPA documents.

4. Can you explain what you mean about the quality of the
    Spectroquant® chemistry?

To provide the best product possible, we consider all aspects of production and quality to ensure accuracy and precision by:
• Using high quality of glass in the sample vials to
  eliminate variations that can occur in the results
  because of poor glass
• Using high quality reagents in the test kits that are also
  measured precisely when added to the cells
• Providing all certification and documentation required
  by the USEPA for all test kits
• Combining our high quality chemistry with a robust and
  precise instrument (when using the Prove Spectroquant®)

The above factors provide you the assurance that your laboratory can defend your data, should an auditor or lawyer walk through the door.

5. What exactly do the regulators expect?

6. What must the laboratory staff do to meet the regulators requirements?

7. What are future requirements from USEPA for our test kits?

• 40 CFR 136.6 is not changing in the current method
  update role and in the proposed method update there is
  no change either.
• Method equivalency for the clean water act methods and
  all the work that have been performed already will meet
  those requirements.
• Safe drinking water will probably incorporate the same
  requirement. They are looking for an method update
  role for drinking water. In the interim we are following
  an Expedited ATP, if required.
• We are committed to providing exceptional
  documentation as required by the USEPA.
• For the next 10 to 20 years we don’t expect a principle
  change in the requirements. This means, our current
  efforts ensure our customers are on the safe side.

8. How does ISO 17025 requirements differ from EPA requirements?