Unit Dose™ cultures are formulated to deliver less than 100 CFU per pellet. Directly inoculate media without dilution. Pellets dissolve instantly. Quantitatively validated and traceable cultures are Certified Reference Materials with downloadable Certi

Unit Dose™ cultures are formulated to deliver less than 100 CFU per pellet. Directly inoculate media without dilution. Pellets dissolve instantly. Quantitatively validated and traceable cultures are Certified Reference Materials with downloadable Certi

Unit Dose™ cultures are formulated to deliver less than 100 CFU per pellet. Directly inoculate media without dilution. Pellets dissolve instantly. Quantitatively validated and traceable cultures are Certified Reference Materials with downloadable Certi

Unit Dose™ cultures are formulated to deliver less than 100 CFU per pellet. Directly inoculate media without dilution. Pellets dissolve instantly. Quantitatively validated and traceable cultures are Certified Reference Materials with downloadable Certi

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 110 mL sample for Ignitability in the NELAC range of 100-200°F. Ground Shipping Only

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

A 1.5 mL concentrate in MTBE (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)

A 1.5 mL concentrate in Acetone for use with Methods 505/508/525. Formulated in the NELAC range of 2 - 20 ug/L. (Supplied in duplicate)

Supplied as a 100 gram blank soil and a 21 mL spiking solution. Each sample contains a subset of each analyte class at concentrations exceeding regulatory levels.

Supplied as a 100 gram blank soil and a 21 mL spiking solution. Each sample contains a subset of each analyte class at concentrations exceeding regulatory levels.

A 1.5 mL concentrate in Methanol for use with Method 531.1. (Supplied in duplicate)

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

Supplied as a 100 gram blank soil and a 21 mL spiking solution. Each sample contains a subset of each analyte class at concentrations exceeding regulatory levels.

A 10.5 mL concentrate for determination of LAS as MBAs. Formulated in the NELAC range of 0.1 - 1.0 mg/L. Each ampule produces 2 liters of sample. (Supplied in duplicate)

A 30 gram sample supplied ready to use. Supplied in duplicate.

A 21 mL concentrate to be analyzed for TOC and DOC. Each ampule 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 30 gram sample supplied ready to use. Designed for use with EPA Method 8081. Contains one Arochlor per study. Formulated in the NELAC required range. Supplied in duplicate.

Supplied as a 50 gram matrix blank and a 5 mL spiking solution for determination of Reactive Cyanide.

A 100 mL sample for determination of Acidity. Formulated in the NELAC range of 650 - 1800 mg/L. (Supplied in duplicate)

A 21 mL concentrate for determination of Mercury. Formulated in the NELAC range of 0.5 - 10 ug/L. Each ampule produces 2 liters of sample. (Supplied in duplicate)

A 250 mL whole volume sample for determination of pH without dilution. Formulated in the NELAC range of 5.0 - 10 units. (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.

A 2.2 mL concentrate for determination of Residual Free Chlorine and 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 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 608/8080/8081. (Supplied in duplicate)

A 250 mL whole volume sample for determination of Total Hardness, Calcium, Sodium, Magnesium, Calcium Hardness. (Supplied in duplicate)

A 1.5 mL concentrate in Methanol for determination of Supplemental Volatiles. (Supplied in duplicate)

Manufactured from USP specified pure organism strains using media and procedures conforming to USP specifications. Each organism strain is supplied in a kit of 10 individual samples and 10 vials of sterile hydration fluid.