Acidity: Methyl Orange, using Sodium Hydroxide with
a Buret (0 to 5000 mg/L as Ca CO3. For water, wastewater
and seawater.
Aluminum: Aluminon Method (0.008 to 0.800
mg/L). For water and wastewater.
Arsenic:
Diethyldithiocarbamate Method (0 to 0.200 mg/L As) For water, wastewater,
and seawater; distillation is required; USEPA
accepted for reporting drinking and wastewater analysis. Procedure
is equivalent to USEPA Method 206.4 for wastewater and Standard Method
3500-As for drinking water analysis.
Atrazine:
Immunoassay Method, for water.
Benzotriazole or Tolyltriazole:
UV Photolysis Method, Benjotriazole (1 to 16 mg/L) olyltriazole 91
to 20 mg/L) for cooling or boiler water.
Bromine:
DPD Method (0.05 to 4.50 mg/L). For testing bromine residuals (including
hypobromite, hypobromous acid and bromamines) used as disinfectants
in process waters, treated water, estuary water and seawater.
Cadmium: Cadion Method (0.02
to 0.30 mg/L Cd). For wastewater process control.
Chelant,
Total: Bismuth Nitrate Method (0 to 40.0 mg/L as Na4
EDTA. For industrial waters.
Chloramine (Mono): Indophenol Method. HR
(0.1 to 10.0 mg/L Cl2). For Chlorinated wastewater.
Chloride: Silver Nitrate Method (10 to 10,000
mg/L as Cl-).
For water, wastewater and seawater.
Chlorine, Free:
Amperometric Buret Titration Method (0.5 mg/L and above) for water
and wastewater; USEPA accepted.
Chlorine, Free: Amperometric Forward Titration using
0.00564 N PAO (0 to 1000 µg/L Chlorine as Cl2. For
drinking water, USEPA accepted for reporting.
Chlorine, Free: DPD Method (0.02 to 2.00 mg/L)
For testing free chlorine, (hypochlorous acid and hypochlorite ion)
in water, treated waters, estuary, and seawater. USEPA
accepted for reporting for drinking water analyses. Procedure
is equivalent to USEPA method 330.5 and Standard Method 4500-CL G
for drinking water.
Chlorine, Total: Amperometric
Forward Titration (15 to 1000 µg/L Chlorine). For drinking water
and wastewater USEPA accepted for reporting.
Procedure is equivalent to USEPA method 330.1 aned 330.3, Standard
Method (18th ed.) 4500-Cl D for drinking water and Standard Method
(17th ed.) 4500-Cl D for wastewater.
Chlorine, Total:
DPD Method, HR (0.1 to 10.0 mg/L as Cl2. For testing higher
levels of total chlorine (free and combined) in drinking water, cooling
water, industrial process waters, or treated wastewater.
Chromium, Hexavalent: 1, 5-Diphenylcarbohyrdazide
Method (0.01 to 0.70 mg/L Cr6+. For water and wastewater;
USEPA accepted for reporting wastewater
analysis. Procedure is equivalent to USGS method 1-1230-85 for wastewater.
Copper, Bicinchoninate Method,
(0.04 to 5.00 mg/L) For water, wastewater and seawater; Method 8506
USEPA accepted for reporting wastewater
analysis (digestion required). Pretreatment required.
Cyanide,
Pyridine-Pyrazolone Method (0.001 to 0.240 mg/L CN- for
water, wastewater and seawater.
Fluoride,
SPADNS Method, (0.02 to 2.00 mg/L F- for water, wastwater
and seawater; USEPA accepted for reporting
for drinking and wastewater analyses (distillation required). Procedure
is equivalent to USPA method 340.1 for drinking water and wastewater.
Hardness, Total: Digital
Titrator with EDTA method (10 to 4000 mg/L as CaCo3) for
water, wastewater, and seawater.
Iron,
Total: FerroVer® Method (0/02 to 3.00 mg/L) For water,
wastewater, and seawater; digestion is required for determining total
iron; USEPA approved for reporting waterwater
analysis. |
Lead: Leadtrak®
Fast Column Extraction Method (5 to 150 µg/L). For drinking
water.
Manganese: Periodate Oxidation Method, HR (0.2
to 20.0 mg/L). For soluble manganese in water and wastewater, USEPA
approved for reporting wastewater analyses (digestion required).
Mercury: Cold Vapor Mercury Concentration Method
(0.1 to 2.5 µg/L. For water, wastewater and seawater.
Molybdenum, Molybdate: Mercaptoacetic Acid Method
HR (0.3 to 40.0 mg/L). For water and wastewater.
Nickel: Heptoxime Method (0.02 to 1.80 mg/L Ni).For
water, wastewater and seawater, USEPA approved
for reporting wastewater analyses (digestion required).
Nitrate: Cadmium Reduction Method LR (0.01 to 0.50
mg/L NO3- -N. .For water, wastewater and seawater.
Nitrite: Diazotization Method LR (0.002 to 0.300
mg/L NO2- -N. For water, wastewater and seawater.
USEPA approved for wastewater analysis.
Nitrogen, Ammonia: Nessler Method (0.02 to 2.50
mg/L NH3- -N. For water, wastewater and seawater;
distillation is required for wastewater and seawater.
USEPA approved for wastewater analysis (distillation required).
Nitrogen, Total Kjeldahl: Nessler Method (digestion
required) (1 to 150 mg/L). For water, wastewater and sludge, digestion
is required.
Oil and Grease: Hexane Extractable Gravimetric
Method (15 to 3000 mg/L HEM and SGT-HEM). For water and wastewater.
Organic Carbon, Total: Direct method. MR (15-150
mg/L C). For wastewater and industrial waters.
Organic Carbon, Total: Direct method. LR (0.3 to
20.0 mg/L C). For water, drinking water and wastewater.
Oxygen Demand, Biochemical: Dilution method. For
water and wastewater.
Oxygen Demand, Biochemical: Respirometric method.
(0-700 mg/L). For water and wastewater.
Oxygen Demand, Chemical: Reactor Digestion method.
(0.7 to 40.0, 3 to 150, 20 to 1500, and 200 to 15,000 mg/L COD)
For water, wastewater and seawater, digestion is required; 3-150
mg/L and 20-1500 mg/L COD ranges are USEPA
approved for wastewater analyses. 200 to 15,000 mg/L COD
range and 0.7 to 40.0 mg/L COD range are not USEPA approved.
Oxygen Scavengers: Iron Reduction method for Oxygen
Scavengers 5 to 600 µg/Lcarbohydrazide; 3 to 450 µg/L
DEHA; 9 to 1000 µg/L hydroquinone; 13 to 1500 µg/L iso-ascorbic
acid [ISA]; 15 to 1000 µg/L methylethyl ketoxime [MEKO]. For
testing residual corrosion inhibitors (oxygen scavengers) in boiler
feed water or condensate.
Phenols: 4-Aminoantipyrine Method (0.002 to 0.200
mg/L) For water and wastewater; USEPA accepted
(distillation required).
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