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    1. Home
    2. /Gov Explore
    3. /PSC Codes
    4. /PSC B504

    Product & Service Code

    PSC B504: Chemical/Biological Studies and Analysis

    192 contracts match PSC B504 (Chemical/Biological Studies and Analysis). Previewing the latest 10 opportunities and the buyer and NAICS mix behind this procurement category.
    PSC B504Previewing 10 opportunities
    View PSC definition →
    Contracts
    192
    Records under this PSC
    Agencies in Preview
    4
    Distinct buyers in the latest sample
    NAICS in Preview
    3
    Adjacent demand lanes

    Latest opportunities

    Previewing the latest 10 opportunities classified under PSC B504.

    B--USGS DETRITAL ZIRCON U/PB, HF, AND T/REE ANALYSES

    Active

    AI Summary

    USGS seeks detrital zircon U/Pb, Hf, and trace/rare-earth element analyses for rock and modern sediment samples supporting petroleum systems research. The agency intends to award to the University of Arizona LaserChron Lab as the only known source. Vendors with comparable technical expertise and capability may contact …

    Posted Oct 28, 2026Due Nov 4, 2026Special NoticeNAICS 541690Sol: 140GG027Q0015
    View details→

    DEPT OF DEFENSE

    CHEMICAL NUTRIENT ANALYSIS SERVICE FOR COMBAT FEEDING DIVISION (CFD)

    Archived

    AI Summary

    The U.S. Army requires chemical nutrient analysis services for its Combat Feeding Division. This RFP seeks proposals for laboratory testing of food samples, with a focus on nutritional content. The contract will be an IDIQ, Firm Fixed Price agreement, and proposals will be evaluated based on technical capability, price…

    MA

    Posted Oct 16, 2026Due Oct 29, 2026Combined Synopsis/SolicitationNAICS 541380Sol: W911QY-26-R-NUTRIENT-ANALYSIS
    View details→

    DEPARTMENT OF THE INTERIOR

    B--SOLID PHASE ADSORPTION TOXIN TRACKING SAMPLES

    Archived

    AI Summary

    The US Geological Survey is seeking sources capable of performing cyanotoxin analysis on 70 SPATT samples for the Maurepas project. This Sources Sought Notice aims to identify qualified vendors for this service, which includes analyzing microcystin, anatoxin, and saxitoxin using established methods. Interested parties …

    VA

    Posted Sep 22, 2026Due Sep 28, 2026Sources SoughtNAICS 541380Sol: 140G0126Q0305
    View details→

    DEPARTMENT OF AGRICULTURE

    USDA ARS RNA-Seq Library Preparation and Sequencing Services

    Archived

    AI Summary

    The USDA Agricultural Research Service is seeking quotations for RNA-Seq Library Preparation and Sequencing Services. This opportunity is a combined synopsis/solicitation for commercial items, with quotations due by September 21, 2026. The period of performance is 90 days from the award date.

    NM

    Posted Sep 16, 2026Due Sep 22, 2026Combined Synopsis/SolicitationNAICS 541380Small Business Set Aside - TotalSol: 127EAU26Q0078
    View details→

    DEPARTMENT OF HEALTH AND HUMAN SERVICES

    HUMAN HINDBRAIN ORGANOID FUNCTIONAL ASSAY SERVICES.

    Archived

    AI Summary

    The FDA seeks a contractor for human iPSC-derived hindbrain organoid functional assay services, including the provision of organoids and their functional characterization using 3D MEA technology. The contract involves twelve scheduled deliveries and an eighteen-month performance period. OrganoTherapeutics SARL is ident…

    MD

    Posted Sep 11, 2026Due Sep 17, 2026Combined Synopsis/SolicitationNAICS 541714Sol: RFQ_CDR-2026-135968
    View details→

    DEPARTMENT OF AGRICULTURE

    CHEMICAL ANALYSIS

    Archived

    AI Summary

    The USDA Agricultural Research Service is seeking quotations for chemical analysis services under solicitation number 1232SA26Q1337. This is an unrestricted RFQ, and all responsible sources may submit a quotation. The acquisition is not set-aside for small businesses, and the applicable NAICS code is 541380.

    MD

    Posted Sep 8, 2026Due Sep 15, 2026Combined Synopsis/SolicitationNAICS 541380No Set aside usedSol: 1232SA26Q1337
    View details→

    DEPT OF DEFENSE

    NAVSUP Off Gas Testing

    Archived

    AI Summary

    The Portsmouth Naval Shipyard is soliciting proposals for off-gas testing and chemical analysis of materials to ensure they do not emit toxic Volatile Organic Compounds (VOCs). This testing is crucial for maintaining personnel health in sealed environments. Interested bidders should respond to this RFP by the specified…

    NH

    Posted Sep 4, 2026Due Sep 8, 2026SolicitationNAICS 541380Sol: N3904026Q5642
    View details→

    DEPARTMENT OF AGRICULTURE

    USDA ARS - WHEAT WHOLE GENOME SEQUENCING

    Archived

    AI Summary

    The USDA ARS is seeking quotations for wheat whole genome sequencing under solicitation number 1232SA26Q1410. This opportunity is set-aside for small businesses and follows the RFQ format. Interested parties should submit their quotations for consideration.

    CA

    Posted Sep 4, 2026Due Sep 9, 2026Combined Synopsis/SolicitationNAICS 541714Total Small Business Set-Aside (FAR 19.5)Sol: 1232SA26Q1410
    View details→

    DEPARTMENT OF AGRICULTURE

    SOLE SOURCE- METABOLOMIC LINKS OF BLUEBERRY INTAKE AND COGNITIVE FUNCTION

    Archived

    AI Summary

    The USDA plans to award a sole source contract to Metabolon, Inc for advanced metabolomic analysis of human plasma samples related to blueberry intake and cognitive function. The contractor must utilize specialized tools and extensive experience in metabolomics, particularly with UPLC-MS/MS technology. Capability state…

    GA

    Posted Sep 3, 2026Due Sep 14, 2026Combined Synopsis/SolicitationNAICS 541380Sol: 12444726Q0078
    View details→

    DEPT OF DEFENSE

    HEAVY METALS SURFACE SAMPLING – TEMPORARY CORROSION CONTROL STRUCTURE

    Archived

    AI Summary

    The Department of Defense is seeking services for heavy metals surface sampling at the Temporary Corrosion Control Structure on Andersen AFB, Guam. The contract involves collecting and analyzing samples for RCRA-8 metals and hexavalent chromium, with all analyses to be conducted by an accredited laboratory.

    AP

    Posted Sep 3, 2026Due Sep 10, 2026Combined Synopsis/SolicitationNAICS 541690Total Small Business Set-Aside (FAR 19.5)Sol: FA524026Q0045
    View details→

    Buyer snapshot

    Agencies and NAICS codes visible in the latest PSC sample.

    Agencies in Preview

    DEPT OF DEFENSE→DEPARTMENT OF THE INTERIOR→DEPARTMENT OF AGRICULTURE→DEPARTMENT OF HEALTH AND HUMAN SERVICES→

    Adjacent NAICS Codes

    NAICS 541690NAICS 541380NAICS 541714

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