| Ammonia in Estuarine by Gas Segmented CF/CA | Ammonia Nitrogen Distillation |
| Ammonia Nitrogen - Colorimetric, Auto Phenate | Ammonia Nitrogen by Titration |
| Ammonia Nitrogen - Colorimetric, Auto Phenate | Ammonia Nitrogen by Titration |
| Ammonia Nitrogen - Colorimetric, Auto Phenate | Ammonia by Titrimetric Method |
| Ammonia Nitrogen - Distillation/Titration | Ammonia Nitrogen by Titration |
| Ammonia Nitrogen - Distillation/Titration | Ammonia Nitrogen by Titration |
| Ammonia Nitrogen - Ion Selective Electrode | Organic Nitrogen by Electrode (Calculated) |
| Ammonia Nitrogen - Ion Selective Electrode | Organic Nitrogen by Electrode (Calculated) |
| Total Kjeldahl Nitrogen - Automated Phenate | Ammonia by Electrode (Calculated) |
| Total Kjeldahl Nitrogen - Automated Phenate | Organic Nitrogen by Electrode (Calculated) |
| Total Kjeldahl Nitrogen - Block Digest, Phenate | Organic Nitrogen by Electrode (Calculated) |
| Total Kjeldahl Nitrogen - Block Digest, Phenate | Ammonia by Electrode (Calculated) |
| Total Kjeldahl Nitrogen - Block Digest, Phenate | Ammonia Nitrogen by Titration |
| Total Kjeldahl Nitrogen - Titrimetric | Ammonia Nitrogen by Titration |
| Total Kjeldahl Nitrogen - Titrimetric | Ammonia Nitrogen by Selective Ion Probe |
| Kjeldahl Nitrogen - Ion Selective Electrode | Ammonia Nitrogen by Selective Ion Probe |
| Kjeldahl Nitrogen - Ion Selective Electrode | Ammonia Nitrogen by Selective Ion Probe |
| Phosphorous - Colorimetric, Automated persulfate | Ammonia Nitrogen by Selective Ion Probe |
| Phosphorous - Colorimetric, Automated persulfate | Ammonia Nitrogen by Selective Ion Probe |
| Phosphorous - Colorimetric, Automated persulfate | Ammonia Nitrogen by Selective Ion Probe |
| Phosphorous - Colorimetric, single reagent | Ammonia Nitrogen by Selective Ion Probe |
| Phosphorous - Colorimetric, single reagent | Ammonia Nitrogen by Selective Ion Probe |
| Phosphorous - Colorimetric, two reagent. | Ammonia Nitrogen by Selective Ion Probe |
| Phosphorous - Colorimetric, two reagent. | Organic Nitrogen by Electrode (Calculated) |
| Phosphorous - Colorimetric, automated block. | Organic Nitrogen by Electrode (Calculated) |
| Phosphorous - Colorimetric, automated block. | Ammonia Nitrogen by Selective Ion Probe |
| Total Kjeldahl Nitrogen in Water and Biosolids by Automated Colorimetry with Preliminary Distillation/Digestion | Ammonia by Automated Phenate |
| Total Kjeldahl Nitrogen in Water and Biosolids by Automated Colorimetry with Preliminary Semi-automatic Digestion | Ammonia by Automated Phenate |
| Ammonia-N in Water and Biosolids by Ion-Selective Electrode Potentiometry with Preliminary Distillation | Ammonia by Automated Phenate Method |
| Ammonia-N in Water and Biosolids by Automated Colorimetry with Preliminary Distillation | Ammonia by Automated Phenate Method |
| Organic Nitrogen by Automated Phenate (Calculated) | Ammonia by Flow Injection Analysis |
| Organic Nitrogen by Automated Phenate (Calculated) | Ammonia by Flow Injection Analysis |
| Organic Nitrogen by Nesslerization or Titration (Calculated) | Ammonia by Flow Injection Analysis |
| Organic Nitrogen by Electrode (Calculated) | Ammonia by Flow Injection Analysis |
| Ammonia Nitrogen - Colorimetric, Auto Phenate | Ammonia Nirogen by Flow Injection Analysis |
| Ammonia Nitrogen - Distillation/Titration | Ammonia Nitrogen by Selective Ion Probe |
| Total Kjeldahl Nitrogen - Automated Phenate | Organic Nitrogen by Macro Kjeldahl Method |
| Total Kjeldahl Nitrogen - Titrimetric | Organic Nitrogen by Macro Kjeldahl Method |
| Phosphorous - Colorimetric, Automated persulfate | Organic Nitrogen by Macro Kjeldahl Method |
| Ammonia | Organic Nitrogen by Macro Kjeldahl Method |
| Ammonia Nitrogen Distillation | Nitrogen (Organic) by Semi-micro Kjeldahl Method |
| Ammonia Nitrogen by Ion Selective Electrode | Nitrogen (Organic) by Semi-micro Kjeldahl Method |
| Ammonia Nitrogen by Ion Selective Electrode with Known Addition | Organic Nitrogen by Semi-Micro-Kjeldahl Method |
| Ammonia Nitrogen by Automated Phenate Method | Nitrogen (Organic) by Semi-Micro-Kjeldahl Method |
| Ammonia by Phenate Method | Phosphorus by Sample Preparation |
| Ammonia Nitrogen by Nesslerization | Phosphorus by Persulfate Digestion Method |
| Ammonia Nitrogen by Titration | Phosphorus by Persulfate Digestion Method |
| Organic Nitrogen by Macro Kjeldahl Method | Phosphorus by Sample Preparation |
| Nitrogen (Organic) by Semi-micro Kjeldahl Method | Phosphorus by Ascorbic Acid Method |
| Phosphorus by Persulfate Digestion Method | Phosphorus by Ascorbic Acid Method |
| Phosphorus by Ascorbic Acid Method | Phosphorus by Ascorbic Acid Method |
| Phosphorus by Automated Ascorbic Acid Method | Phosphorus by Ascorbic Acid Method |
| Ammonia Nitrogen Distillation | Phosphorus by Automated Ascorbic Acid Reduction |
| Ammonia Nitrogen Distillation | Phosphorus by Automated Ascorbic Acid Reduction |
| Ammonia Nitrogen Distillation | Phosphorus by Automated Ascorbic Acid Reduction Method |
| Ammonia Nitrogen Distillation | Phosphorus by Automated Ascorbic Acid Reduction Method |
| Ammonia Nitrogen Distillation | Phosphorus by Stannous Chloride Method |