A 1.5 mL concentrate for use with Methods 625/8270. Supplied in duplicate to yield adequate sample for multiple method requirements or multiple analysts.

A 21 mL concentrate to be analyzed for Simple Nutrients. Each ampule produces 2 liters of sample. (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 Acetone for determination of Toxaphene. Formulated in the NELAC range of 20 - 100 ug/L. (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 1.5 mL concentrate in Acetonitrile for determination of explosive residues in water. (Supplied in duplicate)

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

A 100 mL whole-volume sample for determination of Color. Formulated in the NELAC range of 10 - 75 CU. (Supplied in duplicate)

A screw-cap vial containing a solid material for dilution to 1000 mL. Formulated in the NELAC range of 100 - 500 mg/L. Each vial produces at least 1 liter of sample. (Supplied in duplicate)

One stabilized pellet containing a heterotrophic bacteria in the range of 5 - 500 MPN per mL. Sterile hydration buffer included. Store in freezer. Supplied in duplicate so that you can evaluate 2 analysts or 2 methods without having to purchase additio

A 10.5 mL concentrate for determination of MBAs. Formulated in the NELAC range of 0.2 - 1.0 mg/L. Each ampule produces 2 liters of sample. (Supplied in duplicate)

A 250 mL ready-to-use sample packaged in a HDPE bottle.   (Supplied in duplicate)

A 500 mL ready-to-use whole volume sample to be analyzed for Total Suspended Solids in the NELAC range of 20-100 mg/L and Total Solids formulated in the NELAC range of 140-800 mg/L. (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 1.5 mL concentrate in MTBE for determination of Dicamba, 2,4-D, 2,4,5-T, Silvex, 2,4-DB, Dalapon, Dichloroprop, Dinoseb, MCPA, MCPP and Pentachlorophenol. Formulated in the NELAC range of 2.00 - 10.0 ug/L. (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 21 mL concentrate to be analyzed for Complex Nutrients. Each ampule produces 2 liters of sample. The sample includes:  (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 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 125 mL ready-to-use bottle for determination of Dissolved Oxygen in the range of 0 - 20 mg/L. (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 21 mL concentrate for determination of Mercury. Formulated in the NELAC range of 3.0 - 30 ug/L. Each ampule produces 2 liters of sample. (Supplied in duplicate) 

A 5.0 mL concentrate for determination of Total Phenolics.  Formulated in the NELAC range of 0.5 - 5 mg/L. Each ampule produces 5 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 Boron. Formulated in the NELAC range of 800 - 2000 ug/L. Each vial produces 2 liters of sample. (Supplied in duplicate)

A 5.0 mL concentrate for determination of Perchlorate. Formulated in the range of 4.0 - 20 ug/L. Each ampule produces 2 liters of sample. (Supplied in duplicate)

A 1.5 mL concentrate in Methanol for determination of DRO. Formulated in the NELAC range of 800 - 6000 ug/L. (Supplied in duplicate)

A 1.5 mL concentrate in Methanol for determination of Supplemental Volatiles. (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 1.5 mL concentrate in Acetone for use with Methods 608/8080/8081. (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 2 x 2 g set in Transformer Oil (Supplied in duplicate)