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Proficiency Testing Companies

  • ASTM International

    ASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, ...

    based in West Conshohocken, PENNSYLVANIA (USA).

  • City Analysts Ltd

    City Analysts, Irelands leading environmental laboratories offer a complete range of services for the quality analysis for water, soil, food, air and noise. With a dedicated team of couriers and the convenience of laboratories in Dublin and Limerick, City analysts can handle all your requirements ...

    based in Dublin, IRELAND.

  • QuoData – Quality & Statistics

    QuoData provides statistical expertise, consulting services and software to support industry, research and government in quality assurance and method development - especially in the field of proficiency testing and validation of measurement methods. Utilizing state-of-the-art data science methods ...

    based in GERMANY.

  • NSI Lab Solutions

    Reliability, flexibility and trust. These three traits have remained our focus as we have developed and grown our business since its inception. We were founded in 1982 to operate reference materials program for the USEPA, and today, we continue to manufacture and certify reference materials, ...

    based in Raleigh, NORTH CAROLINA (USA).

  • American Association for Laboratory Accreditation (A2LA)

    The American Association for Laboratory Accreditation (A2LA) is a nonprofit, non-governmental, public service, membership society. We are the only independent (meaning that we are not governed by another, `parent` organization), non-profit, internationally-recognized accreditation body in the ...

    based in Frederick, MARYLAND (USA).

  • Clark Testing

    Clark Testing has been providing product qualification testing and design verification for manufacturers for 20 years. We provide our clients with independent, objective, and competitively priced solutions to their testing needs. You will find that we are dedicated to delivering premium value to ...

    based in Jefferson Hills, PENNSYLVANIA (USA).

  • Materials Testing & Inspection

    Materials Testing & Inspection has firmly established itself as a leader in construction materials testing and inspection, geotechnical engineering, and environmental services. By combining our technical know-how with an understanding of industry trends, we are able to offer our clients the most ...

    based in Boise, IDAHO (USA).

  • AquaTox Testing & Consulting Inc.

    AquaTox operates one of the largest and most respected ecotoxicity laboratories in Canada. AquaTox has provided ecotoxicity testing to industry and government for more than 20 years. AquaTox is accredited by CALA and a recognized GLP ecotoxicity testing laboratory.

    based in Guelph, ONTARIO (CANADA).

  • Derwentside Environmental Testing Services

    Derwentside Environmental Testing Services offers a wide range of high quality analytical services. Combining a modern well equipped laboratory with highly skilled and dedicated staff we can ensure to provide an excellent and superior service to meet even the most demanding requirements.

    based in Consett, UNITED KINGDOM.

  • RWC Testing & Lab Supplies

    RWC Testing & Lab Supplies is a worldwide distributor for many laboratory and measuring instruments, to include: tachometers, stroboscopes, pH meters, oxygen meters, refractometers, tension meters, wall mount & portable gas detectors, etc. Industries served include the scientific, industrial, ...

    based in El Paso, TEXAS (USA).

  • Newage Testing Instruments, Inc.

    Newage Testing Instruments is expert in hardness testing and a leading innovator in solving hardness testing and characterization problems for over 50 years. We manufacture hardness testers and durometers, in accordance to ASTM and ISO standards for Rockwell, Brinell, Knoop and Vickers application, ...

    based in Horsham, PENNSYLVANIA (USA).

  • EKOTEST Environmental Consultancy Testing Co. Ltd

    Our company is providing customers with measurement and consultancy services on environmental pollution and occupational health & safety, quality system issues, with its quality management system established accordingly TS EN ISO/ IEC 17025 and ISO 9001:2000 standards and qualified and expertized ...

    based in Ankara, TURKEY.

  • National Testing Laboratories, Ltd. (NTL)

    National Testing Laboratories, Ltd. (NTL) provide customized water testing services to meet the unique needs of all of our customers across the country. We offer testing services specifically designed to help homeowners determine the quality of their drinking water. Whether their water comes from a ...

    based in Cleveland, OHIO (USA).

  • Illinois Soil Testing Association (ISTA)

    The Illinois Soil Testing Association (ISTA) is an organization of professionals dedicated to: quality soil testing accurate reporting sound management advice Information sharing Our organization was founded on the premise that farmers and others in need of soil analyses must have information ...

    based in Columbia, ILLINOIS (USA).

  • Ursus Remediation Testing & Technologies, LLC

    Ursus Remediation Testing & Technologies, LLC specializes in providing environmental engineers and professionals unique services in the environmental testing and remediation field. Ursus specializes in testing proprietary and non-proprietary chemistries at heavy metal and organic contaminated ...

    based in Mount Horeb,, WISCONSIN (USA).

  • International Asbestos Testing Laboratories (iATL)

    iATL is an independent environmental laboratory specializing in asbestos testing, lead testing and industrial hygiene testing. iATL is accredited by AIHA, NVLAP and numerous state regulatory agencies. iATL specializes in only two analytes: asbestos and lead. Everything from our facilities to staff ...

    based in Mt. Laurel, NEW JERSEY (USA).


    Created in 1970, Bipea is an independent nonprofit organization dedicated to the organization of proficiency testing programs for laboratories concerned by control and quality. Present in more than 64 countries worldwide, our services cover the fields of Grains & Milling, Food & Beverage and ...

    based in PARIS, FRANCE.

  • Catalyst Air Management

    Catalyst Air Management, Inc. was formed in 1996 to provide quality process evaluation and emissions testing services for industrial and power generation clients. Catalyst personnel have a combined total of 55 years of onsite experience at power generation facilities. Catalyst Air Management, Inc. ...


  • The American Oil Chemists Society (AOCS)

    For more than 100 years, AOCS has promoted the science and technology of lipids in the fats and oils industry through analytical methods, proficiency testing, peer-reviewed technical publishing, and in providing venues for technical discussions and educational opportunities. As an international ...

    based in Urbana, ILLINOIS (USA).

  • Advanced Laboratory Solutions

    As a leading supplier of laboratory and test instrumentation in Africa, we provide cost-effective testing solutions for manufacturing and research organisations in the fields of Metallurgy, Polymers, Coatings, Textiles, Food, Cosmetics, Pharmaceuticals, Mineralogy, Paper, Medical, Life Sciences, ...

    based in SOUTH AFRICA.

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