Common use of NUTRIENT GROUP Clause in Contracts

NUTRIENT GROUP. Nutrient samples will be submitted for analyses in two containers: one acidified with analytical grade sulfuric acid for analysis of nitrate, ammonia, TKN, and total phosphate; and one un-altered for the remaining analyses. Seawater and fresh water will be treated similarly, with the exception of the ammonia and Kjeldahl nitrogen analyses. During the nesslerization of seawater, one milliliter of Xxxxxxxx Salts is added to minimize the interferences caused by the cations and anions in the seawater samples. Contractor will conduct analyses using the following methods or approved equivalent: Conductivity 2510 B. 120.1 Turbidity 2130 B. 180.1 pH 4500-H B. 150.1 Nitrate+Nitrite Nitrogen 4500-NO3 F. 353.2 Ammonia Nitrogen 4500-NH3 B. 350.2 4500-NH3 C. 350.2 4500-NH3 E. 350.2 Total Kjeldahl Nitrogen 4500-Norg B. 351.3 Total Phosphate 4500-P B1. 365.2 4500-P B2. 365.2 4500-P B3,4. 365.2 4500-P E. 365.1 Orthophosphate 4500-P E 365.1 Total Non-Filterable Residue 2540 D. 160.2 Volatile Solids 2540 E. 160.4)