This standard specifies the method for the determination of nitrogen oxide (NOX) emissions from nitric acid plants using ultraviolet spectrophotometery.
Compatible Devices : EasyPlus UV/VIS and UV/VIS Excellence Spectrophotometer
The Environmental Protection Agency (EPA) has standards for UV/Vis spectroscopy, particularly for water and wastewater analysis. EPA methods for UV/Vis measurements are focused on the detection and quantification of pollutants, such as organic compounds, metals, and nutrients, in environmental samples. The EPA provides approved methods for UV/Vis measurements in its Method 1100 series, which includes guidance on instrument calibration, quality control, data analysis, and reporting. These standards are important for ensuring the accuracy and reliability of environmental monitoring data, which is used to assess the health of ecosystems and protect public health.
EPA 7B
Nitrogen Oxide Content- Direct Colorimetric
EPA 7C
Nitrogen Oxide - Colorimetric and Ion Chromatography
This method applies to the measurement of nitrogen oxide (NOX) emissions from fossil-fuel- fired steam generators, electric utility plants, nitric acid plants, or other sources as specified in the regulations.
Compatible Devices : EasyPlus UV/VIS and UV/VIS Excellence Spectrophotometer
EPA 110.2
Color of Water
The platinum-cobalt method is useful for measuring the color of water derived from naturally occurring materials, i.e., vegetable residues such as leaves, barks, roots, humus, and peat materials.
Compatible Devices : EasyPlus UV/VIS and UV/VIS Excellence Spectrophotometer
EPA 206.4
Arsenic Content in Water
This silver diethyldithiocarbamate spectrophotometric method determines inorganic arsenic in drinking water and most fresh and saline waters in the absence of high concentrations of chromium, cobalt, copper, mercury, molybdenum, nickel, and silver. Industrial wastes may be analyzed after digestion by EPA Method 206.5.
Compatible Devices : EasyPlus UV/VIS and UV/VIS Excellence Spectrophotometer
EPA 212.3
Determination of Boron Content
This method determines boron in drinking waters, surface waters, and domestic and industrial wastes. The method is applicable for the determination of boron in the range 0.1-1.0 mg/L of boron.
Compatible Devices : EasyPlus UV/VIS and UV/VIS Excellence Spectrophotometer
EPA 330.5
Total Chlorine Content (DPD Method)
This standard specifies the method for the DPD (N,N-diethyl-p-phenylenediamine)-colorimetric determination of chlorine in natural and treated waters at concentrations from 0.2-4 mg/L.
Compatible Devices : EasyPlus UV/VIS and UV/VIS Excellence Spectrophotometer
EPA 340.1
Total Fluoride Content
This standard specifies the method for colorimetric determination of the total fluoride content in drinking, surface, and saline waters and domestic and industrial wastes.
Compatible Devices : EasyPlus UV/VIS and UV/VIS Excellence Spectrophotometer
EPA 350.1
Ammonia (as Nitrogen) Content
This method covers the determination of ammonia in drinking, ground, surface, and saline waters and domestic and industrial wastes. The applicable range is 0.01-2.0 mg/L NH3 as N.
Compatible Devices : EasyPlus UV/VIS and UV/VIS Excellence Spectrophotometer
EPA 354.1
Nitrite Content
This standard specifies the method for the spectrophotometric determination of nitrite in drinking, surface, and saline waters and domestic and industrial wastes.
Compatible Devices : EasyPlus UV/VIS and UV/VIS Excellence Spectrophotometer
EPA 365.1
Total Phosphorus Content (Semi-automated Method)
This standard specifies the method to determine total phosphorus, hydrolyzable phosphorus, and orthophosphate in drinking, ground, and surface waters and domestic and industrial wastes.
Compatible Devices : EasyPlus UV/VIS and UV/VIS Excellence Spectrophotometer
EPA 365.2
Total Phosphorus Content (Ascorbic Acid, One Reagent)
This standard outlines the manual method for determining the dissolved and total orthophosphate, hydrolyzable phosphate, and phosphorus (in all forms) in drinking water, surface water, and saline water, as well as domestic and industrial wastewater, using a colorimetric technique with a single reagent.
Compatible Devices : EasyPlus UV/VIS and UV/VIS Excellence Spectrophotometer
EPA 365.3
Total Phosphorous Content (Ascorbic Acid, Two Reagent)
This standard specifies the method for determining the dissolved and total orthophosphate, hydrolyzable phosphate, and phosphorus (in all forms) in drinking water, surface water, and saline water, as well as domestic and industrial wastewater, using a colorimetric technique with two reagents.
Compatible Devices : EasyPlus UV/VIS and UV/VIS Excellence Spectrophotometer
EPA 370.1
Silica Content (Dissolved)
This standard specifies the method for the colorimetric determination of silica in drinking, surface, and saline waters and domestic and industrial wastes. The working range of the method is approximately 2 to 25 mg silica/L.
Compatible Devices : EasyPlus UV/VIS and UV/VIS Excellence Spectrophotometer
EPA 376.2
Sulfide Content
This standard specifies the colorimetric method using methylene blue for determining sulfide in drinking water, surface water, saline water, and domestic and industrial wastewater.
Compatible Devices : EasyPlus UV/VIS and UV/VIS Excellence Spectrophotometer
EPA 410.4
Chemical Oxygen Demand
This method covers the determination of chemical oxygen demand (COD) in ground and surface waters and domestic and industrial wastes. The applicable range is 3-900 mg/L.
Compatible Devices : EasyPlus UV/VIS and UV/VIS Excellence Spectrophotometer
EPA 425.1
Methylene Blue Active Substances (MBAS)
This method is applicable to the measurement of methylene blue active substances (MBAS) in drinking waters, surface waters, and domestic and industrial wastes.
Compatible Devices : EasyPlus UV/VIS and UV/VIS Excellence Spectrophotometer
EPA 7196A
Chromium (Hexavalent) Content
This method is used to determine the concentration of dissolved hexavalent chromium [Cr(VI)] in EP/TCLP characteristic extracts and groundwater. The method is applicable to determine the Cr(VI) concentration from 0.5 to 50 mg of Cr(VI) per liter.
Compatible Devices : EasyPlus UV/VIS and UV/VIS Excellence Spectrophotometer
EPA 9014
Cyanide Content
This method can be used for measuring free (non-complexed) cyanide and hydrocyanic acid in drinking water, natural surface waters, domestic and industrial wastewater, and soil extracts using titrimetric and manual spectrophotometric techniques (Colorimetric).
Compatible Devices : EasyPlus UV/VIS and UV/VIS Excellence Spectrophotometer
EPA 9038
Sulfate Content (Turbidimetric)
This standard specifies the method for the spectrophotometric determination of sulfate in ground water, drinking water, surface water, and domestic and industrial wastewater using the turbidimetric method. The optimum determination range is 0 - 40 mg/L of SO4²⁻ .
Compatible Devices : EasyPlus UV/VIS and UV/VIS Excellence Spectrophotometer
EPA 9065
Phenol Content
This standard specifies the manual method for the 4-AAP spectrophotometric determination of phenol in ground water, drinking water, surface water, saline water, and domestic and industrial wastewater.
Compatible Devices : EasyPlus UV/VIS and UV/VIS Excellence Spectrophotometer
EPA 9251
Total Chloride Content (Automated Ferricyanide Method)
This method can be used for measuring chloride in ground water, drinking, surface, and saline waters, and domestic and industrial wastes. The applicable range is 1-200 mg of chloride per litre of sample.
Compatible Devices : EasyPlus UV/VIS and UV/VIS Excellence Spectrophotometer
