Not Approved Under 40 CFR Part 136
Although the following methods are not in EPA regulations, they may be of interest to regulated entities, permitting authorities, and the public. The presence of a method here does not imply a regulatory requirement for its use.
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- 200.7: Trace Elements in Water, Solids, and Biosolids by Inductively Coupled Plasma-Atomic Emission Spectrometry; Rev. 5.0 (PDF)(68 pp, 230 K, January 2001, 821-R-01-010)
- 200.9: Determination of Trace Elements by Stabilized Temperature Graphic Furnace Atomic Absorption; Rev. 2.2 (PDF)(43 pp, 294 K, 1994)
- 1656A: Organo-Halide Pesticides in Wastewater, Soil, Sludge, Sediment, and Tissue by GC/HSD (PDF)(59 pp, 379 K, September 2000, 821-R-00-017)
- 1657A: Organo-Phosphorus Pesticides in Wastewater, Soil, Sludge, Sediment, and Tissue by GC/FPD (PDF)(53 pp, 356 K, September 2000, 821-R-00-018)
- 1683: Specific Oxygen Uptake Rate in Biosolids (Draft) (PDF)(23 pp, 168 K, January 2001, 821-R-01-014)
- 1684: Total, Fixed, and Volatile Solids in Water, Solids, and Biosolids (Draft) (PDF)(16 pp, 65 K, January 2001, 821-R-01-015)
- 1685: Nitrate/Nitrite-N in Water and Biosolids by Automated Photometry (Draft) (PDF)(28 pp, 100 K, January 2001, 821-R-01-016)
- 1686: Nitrate/Nitrite-N in Water and Biosolids by Manual Colorimetry (Draft) (PDF)(26 pp, 94 K, January 2001, 821-R-01-005)
- 1687: Total Kjeldahl Nitrogen in Water and Biosolids by Automated Colorimetry with Preliminary Distillation/Digestion (Draft) (PDF)(29 pp, 104 K, January 2001, 821-R-01-004)
- 1688: Total Kjeldahl Nitrogen in Water and Biosolids by Automated Colorimetry with Preliminary Semi-automatic Digestion (Draft) (PDF)(28 pp, 100 K, January 2001, 821-R-01-007)
- 1689: Ammonia-N in Water and Biosolids by Ion-Selective Electrode Potentiometry with Preliminary Distillation (Draft) (PDF)(25 pp, 97 K, January 2001, 821-R-01-012)
- 1690: Ammonia-N in Water and Biosolids by Automated Colorimetry with Preliminary Distillation (Draft) (PDF)(27 pp, 101 K, January 2001, 821-R-01-009)