Frequent Questions

Which version of a method should I use?

Which version of a method should I use?

 

It is usually best to use the most up-to-date version of a method. Although the validated methods are not officially incorporated into SW-846, they have gone through an extensive review process and are recommended for use whenever possible. However, certain state regulations may restrict which versions of methods can be used so you should check with your state or EPA Regional office to confirm which version of a method to use.

 

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