A 2.2 mL concentrate for determination of Total Residual Chlorine.  Formulated in the NELAC range of 0.5 - 3.0 mg/L. Each ampule produces 2 liters of sample. (Supplied in duplicate). 

A 125 mL ready-to-use bottle for determination of Dissolved Oxygen in the range of 0 - 20 mg/L. (Supplied in duplicate)

1000ppm Nitrite as N in reagent water. Nitrite as N source is high purity sodium nitrite. Stores refrigerated. Packaged in 500mL HDPE bottle. A NSIT Traceable, ISO34 Certified Reference Material.

A 1.5 mL concentrate in Methanol (Supplied in duplicate)

A 21 mL concentrate to be analyzed for Simple Nutrients. Each ampule produces 2 liters of sample. (Supplied in duplicate)

A 5.5 mL concentrate in Methanol for determination of TOX. Formulated in the range of 300 - 1500 ug/L. Each ampule produces 3 liters of sample.(Supplied in duplicate)

A 250 mL whole volume sample for determination of Salinity.  Formulated using dissolved ionic salts above 50 salinity. (Supplied in duplicate) 

A natural solid for quantitative transfer to a 1 liter Class A volumetric flask with dilution to 1 liter in reagent water. Formulated in the NELAC range of 5.0 - 50 mL/L. Each vial produces 1 liter of sample. (Supplied in duplicate) 

A 1.5 mL concentrate in Acetonitrile for determination of explosive residues in water. (Supplied in duplicate)

A 3.2 mL concentrate for determination of Oil and Grease. Formulated in the NELAC range of 20 - 200 mg/L. Each ampule produces 3 liters of sample. (Supplied in duplicate)

A 2 x 21 mL vial set for analysis of elements. Each ampule produces 2 liters of sample. (Supplied in duplicate)

A 21 mL concentrate for determination of Uranium. Formulated in the range of 3.0 - 104 ug/L. Each ampule produces 2 liters of sample. (Supplied in duplicate)

A 110 mL sample for Ignitability in the range of 100 - 200°F. Ground Shipping Only. Not supplied in duplicate.

A 21 mL concentrate for determination of Bromide. Formulated in the NELAC range of 1.0 - 10 mg/L. Each ampule produces 2 liters of sample. (Supplied in duplicate)

A 10 gram sample supplied ready to use. Supplied in duplicate.

A 21 mL concentrate for determination of Silica. Formulated in the NELAC range of 50 - 250 mg/L. Each vial produces 2 liters of sample. (Supplied in duplicate)

A 250 mL whole volume sample to be analyzed for pH without dilution. Formulated in the NELAC range of 5.0 - 10 units. (Supplied in duplicate)

A 21 mL concentrate for determination of TOC, COD, BOD, and C-BOD. Each ampule produces 2 liters of sample. (Supplied in duplicate)

A 1.5 mL concentrate in Acetone (Supplied in duplicate)

A 1.5 mL concentrate in P/T Methanol for determination of 1,2-Dibromoethane (EDB), 1,2-Dibromo-3-chloropropane (DBCP) and 1,2,3-Trichloropropane. Formulated in the NELAC range of 0.2 - 2.0 ug/L. (Supplied in duplicate)

A 10.5 mL concentrate for determination of Hexavalent Chromium. Formulated in the NELAC range of 90 - 900 ug/L. Each ampule produces 2 liters of sample. (Supplied in duplicate)

Sample contains both organic and inorganic mercury in the range of 20 -100 ng/L. Provided as a 5 mL concentrate for dilution to 1000 mL. (Supplied in duplicate)

A 1.5 mL concentrate in Methanol for determination of GRO. Formulated in the NELAC range of 400 - 4000 ug/L. (Supplied in duplicate)

A 2 x 2 g set in Transformer Oil (Supplied in duplicate)

A 5.0 mL sample for dilution to 1000 mL. Can be used for IR methods as well as Gravimetric methods. Formulated in the NELAC range of 20 - 200 mg/L. Each ampule produces 1 liters of sample. (Supplied in duplicate)

A single sample for determination of Low Level Total Residual Chlorine in the range of 50 - 250 ug/L. (Supplied in duplicate) 

A 1.5 mL concentrate in Acetone for use with Methods 608/8080/8081. Formulated in the NELAC range of 3.00 - 25.0 ug/L. (Supplied in duplicate)

Designed for use with all MPN and MF procedures. Sample supplied as a dehydrated pellet in the NELAC range of 20 - 1000 CFU/MPN per 100 mL. Sterile hydration buffer included. Store in freezer.  Supplied in duplicate so that you can evaluate multiple me

A 21 mL concentrate for determination of Amenable and Total Cyanide. Formulated in the NELAC range of 0.1 - 1 mg/L. Each ampule produces 2 liters of sample. (Supplied in duplicate) 

A 1.5 mL concentrate in Acetonitrile for determination of PAHs by Methods 610 and 8310. (Supplied in duplicate) 

A 21 mL concentrate to be analyzed for Simple Nutrients. Each ampule produces 2 liters of sample. (Supplied in duplicate)

A 1.5 mL concentrate in Acetone for use with Methods 604/8040/8041 or 625/8270. Supplied in duplicate to provide adequate sample for multiple methods requirements or for multiple analysts.