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

A three sample set for qualitative identification of Campylobacter spp. Set contains C.jejuni or coli and non-pathogenic/non-campylobacter facultative anaerobes. Report present or absent for Campylobacter spp for each sample.

A pure culture conveniently supplied in duplicate for quantitative determination of Campylobacter, in the range of 100-250000 cfu/g.

Microbiological CRMs designed Petrifilm® methods.

A pure culture of C. perfringens conveniently supplied in duplicate for quantitative determination of C. perfringens.

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 40 gram soil sample for determination of Corrosivity/pH in the range of 2-12 su.

Chlorine snips are the most convenient reference material for residual chlorine analysis. They require no pipets and no glassware other than the instrument cuvette to prepare.

A 30 gram sample supplied ready to use. Designed for use with EPA Method 8081. Contains technical Chlordane in the NELAC required range. Supplied in duplicate.

Manufactured using characterized dry shrimp and crab tissue. Certified by 2 methods.

Microbiological CRMs designed Petrifilm® methods.

Pure bacterial culture in an easy to use swab stick. Simple snap valve design releases hydration fluid with a simple press of the plastic valve stem. Cultures are supplied in flash dissolve format, dissolving without agitation or incubation in less tha

Pure bacterial culture in an easy to use swab stick. Simple snap valve design releases hydration fluid with a simple press of the plastic valve stem. Cultures are supplied in flash dissolve format, dissolving without agitation or incubation in less tha

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.

Pure bacterial culture in an easy to use swab stick. Simple snap valve design releases hydration fluid with a simple press of the plastic valve stem. Cultures are supplied in flash dissolve format, dissolving without agitation or incubation in less tha