20.0 Glossary of Definitions and Purposes These definitions and purposes are specific to this method but have been conformed to common usage as much as possible.

20.1 Units of weight and measure and their abbreviations

20.1.1 Symbols. °C degrees Celsius UL microliter < less than > greater than % percent

20.1.2 Alphabetical characters. cm centimeter g gram h hour ID inside diameter in. inch L liter M Molecular ion m meter mg milligram min minute mL milliliter

mm millimeter mz mass-to-charge ratio N normal; gram molecular weight of solute

divided by hydrogen equivalent of solute,

per liter of solution OD outside diameter pg picogram ppb part-per-billion ppm part-per-million ppt part-per-trillion psig pounds-per-square inch gauge V/v volume per unit volume WV weight per unit volume

20.2 Definitions and acronyms (in alphabetical order).

Analyte: A chlorophenolic tested for by this method.

The analytes are listed in Table 1.

Calibration standard (CAL): A solution prepared from a secondary standard and/or stock solutions and used to calibrate the response of the instrument with respect to analyte concentration.

Calibration verification standard (VER): The mid-point calibration standard (CS3) that is used to verify calibration. See Table 4.

Chlorophenolics: collectively, the analytes listed in Table 1.

csi, CS2, CS3, CS4, CS5: See Calibration standards and Table 4.

Field blank: An aliquot of reagent water or other reference matrix that is placed in a sample container in the laboratory or the field, and treated as a sample in all respects, including exposure to sampling site conditions, storage, preservation, and all analytical procedures. The purpose of the field blank is to determine if the field or sample transporting procedures and environments have contaminated the sample.

GC: Gas chromatograph or gas chromatography

HRGC: High resolution GC.

IPR: Initial precision and recovery; four aliquots of the diluted PAR standard analyzed to establish the ability to generate acceptable precision and accuracy. An IPR is performed prior to the first time this method is used and any time the method or instrumentation is modified.

K-D: Kuderna-Danish concentrator; a device used to concentrate the analytes in a solvent.

Laboratory blank: See Method blank.

Laboratory control sample (LCS): See Ongoing precision and recovery standard (OPR).

Laboratory reagent blank: See Method blank.

May: This action, activity, or procedural step is neither required nor prohibited.

May not: This action, activity, or procedural step is prohibited.

Method blank: An aliquot of reagent water that is treated exactly as a sample including exposure to all glassware, equipment, solvents, reagents, internal standards, and surrogates that are used with samples. The method blank is used to determine if analytes or interferences are present in the laboratory environment, the reagents, or the apparatus.

Minimum level (ML): The level at which the entire analytical system must give a recognizable signal and acceptable calibration point for the analyte. It is equivalent to the concentration of the lowest calibration standard, assuming that all method-specified sample weights, volumes, and cleanup procedures have been employed.

MS: Mass spectrometer or mass spectrometry

Must: This action, activity, or procedural step is required.

OPR: Ongoing precision and recovery standard (OPR); a laboratory blank spiked with known quantities of analytes. The OPR is analyzed exactly like a sample. Its purpose is to assure that the results produced by the laboratory remain within the limits speci

fied in this method for precision and recovery

PAR: Precision and recovery standard: secondary standard that is diluted and spiked to form the IPR and OPR.

Preparation blank: See Method blank.

Primary dilution standard: A solution containing the specified analytes that is purchased or prepared from stock solutions and diluted as needed to prepare calibration solutions and other solutions.

Quality control check sample (QCS): A sample containing all or a subset of the analytes at known concentrations. The QCS is obtained from a source external to the laboratory or is prepared from a source of standards different from the source of calibration standards. It is used to check laboratory performance with test materials prepared external to the normal preparation process.

Reagent water: Water demonstrated to be free from the analytes of interest and potentially interfering substances at the method detection limit for the analyte.

Relative standard deviation (RSD): The standard deviation times 100 divided by the mean.

RF: Response factor. See Section 10.5.1. RR: Relative response. See Section 10.4.4. RSD: See Relative standard deviation.

Should: This action, activity, or procedural step is suggested but not required.

Stock solution: A solution containing an analyte that is prepared using a reference material traceable to EPA, the National Institute of Science and Technology (NIST), or a source that will attest to the purity and authenticity of the reference material.

VER: See Calibration verification standard.

PART 431 [RESERVED]

PART 432-MEAT AND POULTRY

PRODUCTS POINT SOURCE CAT-
EGORY

Sec. 432.1 General applicability. 432.2 General definitions. 432.3 General limitation or standard for pH. 432.5 Incorporation by reference.

Subpart A-Simple Slaughterhouses 432.10 Applicability. 432.11 Special definitions. 432.12 Effluent limitations attainable by the

application of the best practicable control technology currently available

(BPT). 432.13 Effluent limitations attainable by the

application of the best available technology economically achievable (BAT).

432.14 Pretreatment standards for existing

sources (PSES). (Reserved) 432.15 New source performance standards

(NSPS). 432.16 Pretreatment standards for new

sources (PSNS). [Reserved) 432.17 Effluent limitations attainable by the

application of the best control technology for conventional pollutants (BCT).

432.44 Pretreatment standards for existing

sources (PSES). (Reserved) 432.45 New source performance standards

(NSPS). 432.46 Pretreatment standards for new

sources (PSNS). (Reserved] 432.47 Effluent limitations attainable by the

application of the best control technology for conventional pollutants (BCT).

Subpart B-Complex Slaughterhouses 432.20 Applicability. 432.21 Special definitions. 432.22 Effluent limitations attainable by the

application of the best practicable control technology currently available

(BPT). 432.23 Effluent limitations attainable by the

application of the best available tech

nology economically achievable (BAT). 432.24 Pretreatment standards for existing

sources (PSES). (Reserved) 432.25 New source performance standards

(NSPS). 432.26 Pretreatment standards for

sources (PSNS). [Reserved) 432.27 Effluent limitations attainable by the

application of the best control technology for conventional pollutants (BCT).

new

Subpart C-Low-Processing Packinghouses

432.30 Applicability. 432.31 Special definitions. 432.32 Effluent limitations attainable by the

application of the best practicable control technology currently available

(BPT). 432.33 Effluent limitations attainable by the

application of the best available tech

nology economically achievable (BAT). 432.34 Pretreatment standards for existing

sources (PSES). [Reserved] 432.35 New source performance standards

(NSPS). 432.36 Pretreatment standards for

sources (PSNS). [Reserved) 432.37 Effluent limitations attainable by the

application of the best control technology for conventional pollutants (BCT).

Subpart F-Meat Cutters 432.60 Applicability. 432.61 Special definitions. 432.62 Effluent limitations attainable by the

application of the best practicable control technology currently available

(BPT). 432.63 Effluent limitations attainable by the

application of the best available tech

nology economically achievable (BAT). 432.64 Pretreatment standards for existing

sources (PSES). (Reserved] 432.65 New source performance standards

(NSPS). 432.66 Pretreatment standards for

sources (PSNS). (Reserved) 432.67 Effluent limitations attainable by the

application of the best control technology for conventional pollutants (BCT).

new

new

Subpart D-High-Processing

Packinghouses 432.40 Applicability. 432.41 Special definitions. 432.42 Effluent limitations attainable by the

application of the best practicable control technology currently available

(BPT). 432.43 Effluent limitations attainable by the

application of the best available technology economically achievable (BAT).

Subpart G-Sausage and Luncheon Meats

Processors 432.70 Applicability. 432.71 Special definitions. 432.72 Effluent limitations attainable by the

application of the best practicable control technology currently available

(BPT). 432.73 Effluent limitations attainable by the

application of the best available tech

nology economically achievable (BAT). 432.74 Pretreatment standards for existing

sources (PSES). [Reserved) 432.75 New source performance standards

(NSPS).