ERA has specially designed reference materials and PT standards to help you improve and document the quality of all of your microbiology analyses. Our exclusive lyophilized standards are the easiest to use, most stable products available.

Water Pollution

Water Supply

More laboratories around the world participate in ERA's Water Pollution PT studies for environmental samples, than any other environmental laboratory PT program. The matrix of the PT is deionized water and the concentrations are designed to meet United States EPA and NELAC requirements.

Analyte categories available:

Inorganics

Organics

Individual Aroclors

ERA's Water Supply proficiency test (PT) products meet all USEPA and NELAC requirements. Year after year, thousands of labs trust these standards to meet their QA program and accreditation requirements.

Analyte categories available:

Inorganics

Organics