This December 2024 version of the method is identified as Method 1633A and it supersedes all previous versions, addresses various minor editorial issues noted in the January 2024 version, as well as …

SEMIVOLATILE ORGANIC COMPOUNDS BY GAS CHROMATOGRAPHY/MASS SPECTROMETRY SW-846 is not intended to be an analytical training manual. Therefore, method procedures are …

To use this method, you must enter the payroll period, filing status, number of withholding allowances, standard deduction, and exemption allowance credit amounts. These amounts are included in Tables …

Procedures for the cleanup and analysis of the resultant extracts are described in Chapter Two, as well as in Method 3600 (cleanup) and Method 8000 (analysis).

This document represents the AOF method developed by the EPA Office of Water, Engineering and Analysis Division (EAD). This method is not approved for Clean Water Act compliance monitoring …

method analytes whose concentration is of this solution is added to a known procedures used for samples. Results of statistically the accuracy and precision performed by a competent analyst.

This document represents the first draft of Method 1634 for 6PPD-Q currently under development by the EPA Office of Water, Engineering and Analysis Division (EAD), in collaboration with EPA Region 10 …