PT scheme directory

Proficiency testing providers in the United States

9 providers based in the United States are listed with 144 schemes between them. The testing fields covered most are clinical chemistry (5), forensic & toxicology (5) and haematology & coagulation (5). 7 accept international participants and 7 state an accreditation.

Searches within United States. Search the whole directory

9 providers

  • AAFCO Proficiency Testing Program (Association of American Feed Control Officials)

    Champaign, United StatesInternational participants

    Schemes: Animal Feed Scheme (Feeds and supplements)Pet Food Ingredient Scheme (Pet food ingredients of animal or plant origin; dry pet food)Mycotoxin Contaminants Scheme (Animal feed or pet food with naturally incurred mycotoxins)

    • Food & feed

    4 schemes

    Accreditation self-declared (ANAB)

  • American Proficiency Institute (API)

    Traverse City, United StatesInternational participants

    Schemes: Basic ChemistryComprehensive ChemistryImmunoassay

    • Clinical chemistry
    • Haematology & coagulation
    • Immunology & serology
    • Microbiology
    • +5 more

    20 schemes

    Accreditation self-declared (A2LA)

  • Bio-Rad EQAS (Bio-Rad Laboratories)

    Hercules, United StatesInternational participants

    Schemes: EQAS Clinical Chemistry (Monthly) ProgramEQAS Immunoassay (Monthly) ProgramEQAS Specialty Immunoassay Program

    • Clinical chemistry
    • Haematology & coagulation
    • Immunology & serology
    • Transfusion & blood bank

    17 schemes

    Accreditation self-declared

  • Collaborative Testing Services, Inc. (CTS)

    Sterling, United StatesInternational participants

    Schemes: Forensic Biology / DNADrug AnalysisToxicology

    • Food & feed
    • Materials & construction
    • Forensic & toxicology
    • Other

    18 schemes

    Accreditation self-declared (ANAB)

  • College of American Pathologists (CAP) Proficiency Testing Program

    Northfield, United StatesInternational participants

    Schemes: Chemistry and Therapeutic Drug Monitoring (Liquid serum)Hematology Automated Differential Series (Whole blood)Critical Care Blood Gas

    • Clinical chemistry
    • Haematology & coagulation
    • Immunology & serology
    • Microbiology
    • +7 more

    25 schemes

    Accreditation self-declared (ANAB)

  • HN Proficiency Testing, Inc.

    Indianapolis, United States

    Schemes: GB1 - Gage BlocksRG1 - Ring GagesSF1 - Surface Finish

    • Materials & construction
    • Calibration & metrology
    • Electrical, EMC & electronics

    16 schemes

    Accreditation self-declared (A2LA)

  • Phenova Inc.

    Golden, United States

    Schemes: Water SupplyWater Supply MicroWater Pollution

    • Microbiology
    • Water
    • Environment, soil & air

    10 schemes

    Accreditation self-declared

Listings are compiled from each provider's own published information or sent in by the provider, and reviewed by EqasOnline. Check scheme details, fees and dates with the provider before you enrol.

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