{"product_id":"nist-srm-888-cemented-carbide-certified-reference-material","title":"NIST SRM 888 Cemented Carbide (W64-Co25-Ta5) Certified Reference Material","description":"\u003cdiv class=\"group w-full text-token-text-primary border-b border-black\/10 dark:border-gray-900\/50 bg-gray-50 dark:bg-[#444654]\"\u003e\n\u003cdiv class=\"flex p-4 gap-4 text-base md:gap-6 md:max-w-2xl lg:max-w-[38rem] xl:max-w-3xl md:py-6 lg:px-0 m-auto\"\u003e\n\u003cdiv class=\"relative flex w-[calc(100%-50px)] flex-col gap-1 md:gap-3 lg:w-[calc(100%-115px)]\"\u003e\n\u003cdiv class=\"flex flex-grow flex-col gap-3 max-w-full\"\u003e\n\u003cdiv class=\"min-h-[20px] flex flex-col items-start gap-3 overflow-x-auto whitespace-pre-wrap break-words\"\u003e\n\u003cdiv class=\"markdown prose w-full break-words dark:prose-invert light\"\u003e\n\u003cdiv class=\"group w-full text-token-text-primary border-b border-black\/10 dark:border-gray-900\/50 bg-gray-50 dark:bg-[#444654]\"\u003e\n\u003cdiv class=\"flex p-4 gap-4 text-base md:gap-6 md:max-w-2xl lg:max-w-[38rem] xl:max-w-3xl md:py-6 lg:px-0 m-auto\"\u003e\n\u003cdiv class=\"relative flex w-[calc(100%-50px)] flex-col gap-1 md:gap-3 lg:w-[calc(100%-115px)]\"\u003e\n\u003cdiv class=\"flex flex-grow flex-col gap-3 max-w-full\"\u003e\n\u003cdiv class=\"min-h-[20px] flex flex-col items-start gap-3 overflow-x-auto whitespace-pre-wrap break-words\"\u003e\n\u003cdiv class=\"markdown prose w-full break-words dark:prose-invert light\"\u003e\n\u003cdiv class=\"group w-full text-token-text-primary border-b border-black\/10 dark:border-gray-900\/50 bg-gray-50 dark:bg-[#444654]\"\u003e\n\u003cdiv class=\"flex p-4 gap-4 text-base md:gap-6 md:max-w-2xl lg:max-w-[38rem] xl:max-w-3xl md:py-6 lg:px-0 m-auto\"\u003e\n\u003cdiv class=\"relative flex w-[calc(100%-50px)] flex-col gap-1 md:gap-3 lg:w-[calc(100%-115px)]\"\u003e\n\u003cdiv class=\"flex flex-grow flex-col gap-3 max-w-full\"\u003e\n\u003cdiv class=\"min-h-[20px] flex flex-col items-start gap-3 overflow-x-auto whitespace-pre-wrap break-words\"\u003e\n\u003cdiv class=\"markdown prose w-full break-words dark:prose-invert light\"\u003e\n\u003cdiv class=\"group w-full text-token-text-primary border-b border-black\/10 dark:border-gray-900\/50 bg-gray-50 dark:bg-[#444654]\"\u003e\n\u003cdiv class=\"flex p-4 gap-4 text-base md:gap-6 md:max-w-2xl lg:max-w-[38rem] xl:max-w-3xl md:py-6 lg:px-0 m-auto\"\u003e\n\u003cdiv class=\"relative flex w-[calc(100%-50px)] flex-col gap-1 md:gap-3 lg:w-[calc(100%-115px)]\"\u003e\n\u003cdiv class=\"flex flex-grow flex-col gap-3 max-w-full\"\u003e\n\u003cdiv class=\"min-h-[20px] flex flex-col items-start gap-3 overflow-x-auto whitespace-pre-wrap break-words\"\u003e\n\u003cdiv class=\"markdown prose w-full break-words dark:prose-invert light\"\u003e\n\u003cdiv class=\"group w-full text-token-text-primary border-b border-black\/10 dark:border-gray-900\/50 bg-gray-50 dark:bg-[#444654]\"\u003e\n\u003cdiv class=\"flex p-4 gap-4 text-base md:gap-6 md:max-w-2xl lg:max-w-[38rem] xl:max-w-3xl md:py-6 lg:px-0 m-auto\"\u003e\n\u003cdiv class=\"relative flex w-[calc(100%-50px)] flex-col gap-1 md:gap-3 lg:w-[calc(100%-115px)]\"\u003e\n\u003cdiv class=\"flex flex-grow flex-col gap-3 max-w-full\"\u003e\n\u003cdiv class=\"min-h-[20px] flex flex-col items-start gap-3 overflow-x-auto whitespace-pre-wrap break-words\"\u003e\n\u003cdiv class=\"markdown prose w-full break-words dark:prose-invert light\"\u003e\n\u003cdiv class=\"group w-full text-token-text-primary border-b border-black\/10 dark:border-gray-900\/50 bg-gray-50 dark:bg-[#444654]\"\u003e\n\u003cdiv class=\"flex p-4 gap-4 text-base md:gap-6 md:max-w-2xl lg:max-w-[38rem] xl:max-w-3xl md:py-6 lg:px-0 m-auto\"\u003e\n\u003cdiv class=\"relative flex w-[calc(100%-50px)] flex-col gap-1 md:gap-3 lg:w-[calc(100%-115px)]\"\u003e\n\u003cdiv class=\"flex flex-grow flex-col gap-3 max-w-full\"\u003e\n\u003cdiv class=\"min-h-[20px] flex flex-col items-start gap-3 overflow-x-auto whitespace-pre-wrap break-words\"\u003e\n\u003cdiv class=\"markdown prose w-full break-words dark:prose-invert light\"\u003e\n\u003cdiv data-testid=\"conversation-turn-5\" class=\"group w-full text-token-text-primary border-b border-black\/10 dark:border-gray-900\/50 bg-gray-50 dark:bg-[#444654]\"\u003e\n\u003cdiv class=\"flex p-4 gap-4 text-base md:gap-6 md:max-w-2xl lg:max-w-[38rem] xl:max-w-3xl md:py-6 lg:px-0 m-auto\"\u003e\n\u003cdiv class=\"relative flex w-[calc(100%-50px)] flex-col gap-1 md:gap-3 lg:w-[calc(100%-115px)]\"\u003e\n\u003cdiv class=\"flex flex-grow flex-col gap-3 max-w-full\"\u003e\n\u003cdiv class=\"min-h-[20px] flex flex-col items-start gap-3 overflow-x-auto whitespace-pre-wrap break-words\"\u003e\n\u003cdiv class=\"markdown prose w-full break-words dark:prose-invert light\"\u003e\n\u003cdiv data-testid=\"conversation-turn-35\" class=\"group w-full text-token-text-primary border-b border-black\/10 dark:border-gray-900\/50 bg-gray-50 dark:bg-[#444654]\"\u003e\n\u003cdiv class=\"p-4 justify-center text-base md:gap-6 md:py-6 lg:px-0 m-auto\"\u003e\n\u003cdiv class=\"flex flex-1 gap-4 text-base mx-auto md:gap-6 md:max-w-2xl lg:max-w-[38rem] xl:max-w-3xl }\"\u003e\n\u003cdiv class=\"relative flex w-[calc(100%-50px)] flex-col gap-1 md:gap-3 lg:w-[calc(100%-115px)]\"\u003e\n\u003cdiv class=\"flex flex-grow flex-col gap-3 max-w-full\"\u003e\n\u003cdiv class=\"min-h-[20px] flex flex-col items-start gap-3 overflow-x-auto whitespace-pre-wrap break-words\"\u003e\n\u003cdiv class=\"markdown prose w-full break-words dark:prose-invert light\"\u003e\n\u003cdiv data-testid=\"conversation-turn-37\" class=\"group w-full text-token-text-primary border-b border-black\/10 dark:border-gray-900\/50 bg-gray-50 dark:bg-[#444654]\"\u003e\n\u003cdiv class=\"p-4 justify-center text-base md:gap-6 md:py-6 lg:px-0 m-auto\"\u003e\n\u003cdiv class=\"flex flex-1 gap-4 text-base mx-auto md:gap-6 md:max-w-2xl lg:max-w-[38rem] xl:max-w-3xl }\"\u003e\n\u003cdiv class=\"relative flex w-[calc(100%-50px)] flex-col gap-1 md:gap-3 lg:w-[calc(100%-115px)]\"\u003e\n\u003cdiv class=\"flex flex-grow flex-col gap-3 max-w-full\"\u003e\n\u003cdiv class=\"min-h-[20px] flex flex-col items-start gap-3 overflow-x-auto whitespace-pre-wrap break-words\"\u003e\n\u003cdiv class=\"markdown prose w-full break-words dark:prose-invert light\"\u003e\n\u003cdiv class=\"group w-full text-token-text-primary border-b border-black\/10 dark:border-gray-900\/50 bg-gray-50 dark:bg-[#444654]\" data-testid=\"conversation-turn-41\"\u003e\n\u003cdiv class=\"p-4 justify-center text-base md:gap-6 md:py-6 lg:px-0 m-auto\"\u003e\n\u003cdiv class=\"flex flex-1 gap-4 text-base mx-auto md:gap-6 md:max-w-2xl lg:max-w-[38rem] xl:max-w-3xl }\"\u003e\n\u003cdiv class=\"relative flex w-[calc(100%-50px)] flex-col gap-1 md:gap-3 lg:w-[calc(100%-115px)]\"\u003e\n\u003cdiv class=\"flex flex-grow flex-col gap-3 max-w-full\"\u003e\n\u003cdiv class=\"min-h-[20px] flex flex-col items-start gap-3 overflow-x-auto whitespace-pre-wrap break-words\"\u003e\n\u003cdiv class=\"markdown prose w-full break-words dark:prose-invert light\"\u003e\n\u003cdiv class=\"group w-full text-token-text-primary border-b border-black\/10 dark:border-gray-900\/50 bg-gray-50 dark:bg-[#444654]\" data-testid=\"conversation-turn-43\"\u003e\n\u003cdiv class=\"p-4 justify-center text-base md:gap-6 md:py-6 lg:px-0 m-auto\"\u003e\n\u003cdiv class=\"flex flex-1 gap-4 text-base mx-auto md:gap-6 md:max-w-2xl lg:max-w-[38rem] xl:max-w-3xl }\"\u003e\n\u003cdiv class=\"relative flex w-[calc(100%-50px)] flex-col gap-1 md:gap-3 lg:w-[calc(100%-115px)]\"\u003e\n\u003cdiv class=\"flex flex-grow flex-col gap-3 max-w-full\"\u003e\n\u003cdiv class=\"min-h-[20px] flex flex-col items-start gap-3 overflow-x-auto whitespace-pre-wrap break-words\"\u003e\n\u003cdiv class=\"markdown prose w-full break-words dark:prose-invert light\"\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eTungsten Carbide Reference Standard | Certified Cobalt \u0026amp; Tantalum | XRF Sample Cup or Bulk Powder\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNIST SRM 888 is a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ecemented carbide certified reference material (CRM)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e designed for chemical analysis verification, instrument performance monitoring, and analytical quality control of tungsten carbide materials containing cobalt and tantalum.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFeaturing certified concentrations of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e24.7% cobalt (Co) and 4.77% tantalum (Ta)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this reference material provides a reliable benchmark for laboratories, carbide manufacturers, scrap metal recyclers, and industrial quality control departments analyzing specialized tungsten carbide alloys.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAlloy Geek offers NIST SRM 888 in two configurations: a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eprepared XRF sample cup for convenient X-ray fluorescence testing\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e or a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e100 g bulk powder jar\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e for laboratories requiring additional material for sample preparation and chemical analysis.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether you're verifying cobalt and tantalum concentrations with a handheld XRF analyzer, evaluating measurement accuracy with a benchtop XRF system, or establishing laboratory quality control procedures, SRM 888 provides certified elemental values in a tungsten-rich carbide matrix.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eAvailable Sample Configurations\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrepared XRF Sample Cup\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for convenient testing with compatible handheld and benchtop XRF analyzers, this option contains NIST SRM 888 powder prepared in an XRF sample cup.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePrepared for routine XRF verification and quality control\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCertified cobalt and tantalum concentrations\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eConvenient for monitoring analytical repeatability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHelps minimize routine handling of loose carbide powder\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable for carbide scrap recycling, manufacturing, and laboratory applications\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePractical for routine instrument performance checks\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe prepared XRF sample cup is particularly useful for facilities analyzing tungsten carbide cutting tools, industrial inserts, hardmetal alloys, and specialized cobalt-bonded carbide materials.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e100 g Bulk Powder Jar\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor laboratories requiring larger quantities or specialized sample preparation, SRM 888 is also available as a 100 g bulk powder jar.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eFine cemented carbide powder\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable for preparation of multiple analytical samples\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSupports laboratory XRF specimen preparation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUseful for chemical analysis and method development\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIdeal for repeated testing and laboratory quality assurance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAllows sample preparation according to established analytical procedures\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eSelect your preferred configuration before adding the product to your cart.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eCertified Chemical Composition\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eNIST SRM 888 is a tungsten carbide-based reference material containing cobalt as a binder constituent and tantalum as an additional alloying element.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe material is designated \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eW64-Co25-Ta5\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, representing its nominal tungsten, cobalt, and tantalum composition.\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eElement\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eConcentration (% by Weight)\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eCertification Status\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCobalt (Co)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24.7\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCertified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTantalum (Ta)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4.77\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCertified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCarbon (C)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4.6\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eInformational\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTungsten (W)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePrincipal Matrix Constituent\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Separately Certified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Cobalt and tantalum are the certified elements in SRM 888. Carbon is reported for informational purposes and does not represent a certified concentration. The tungsten content is reflected in the nominal material designation but is not separately certified.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor complete certified values, measurement uncertainties, and supporting analytical information, refer to the NIST Certificate of Analysis.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eXRF Verification for Tungsten Carbide Alloys\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eAccurate measurements of cobalt and tantalum are important when analyzing specialized cemented carbide materials.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCobalt is commonly used as a metallic binder in tungsten carbide products, while tantalum-containing carbide phases can be incorporated to modify the performance characteristics of certain industrial cutting tools and wear-resistant materials.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe certified elemental concentrations in SRM 888 make it useful for checking XRF measurement performance in high-cobalt, tantalum-containing carbide materials.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eCommon XRF Applications:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eVerify cobalt measurements in tungsten carbide alloys\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVerify tantalum measurements in cemented carbide materials\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMonitor handheld and benchtop XRF analyzer performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEvaluate measurement repeatability and consistency\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSupport quality assurance procedures for carbide manufacturing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCheck analytical performance before testing production samples\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompare measurement results across compatible XRF instruments\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSupport analytical method verification and routine quality control\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnlike reference materials containing only certified cobalt, SRM 888 provides certified concentrations for two analytically important elements in a tungsten-rich matrix.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis makes it a useful addition to reference material collections used for evaluating carbide alloy measurement performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eApplications in Tungsten Carbide Recycling\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eTungsten carbide recycling operations frequently encounter materials with different binder compositions and specialized carbide additions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAccurate identification of cobalt and tantalum can help recyclers distinguish material categories, evaluate incoming scrap, and improve sorting consistency.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSRM 888 is well suited for XRF quality control programs involving:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eTungsten Carbide Cutting Inserts\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigh-Cobalt Cemented Carbide Alloys\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTantalum-Containing Carbide Grades\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIndustrial Cutting Tools\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTungsten Carbide Scrap\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSpecialized Hardmetal Components\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCarbide Manufacturing Materials\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWear-Resistant Industrial Components\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eFacilities processing mixed carbide scrap can use SRM 888 as a reference material when evaluating analyzer performance for both cobalt and tantalum measurements.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eLaboratory Analysis and Quality Control\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eIn addition to routine XRF testing, the bulk powder configuration supports laboratories performing chemical and instrumental analysis of cemented carbide materials.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePotential applications include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eAnalytical Method Development\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLaboratory Quality Assurance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInstrument Performance Verification\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInterlaboratory Measurement Comparisons\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSample Preparation Procedure Evaluation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eChemical Analysis of Tungsten Carbide Materials\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVerification of Cobalt and Tantalum Measurements\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe powder can be prepared using appropriate laboratory techniques, including pressed-powder preparation, fusion, or chemical digestion where compatible with the analytical method.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSRM 888 is especially useful where a reference material containing certified tantalum is required in addition to cobalt.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eMaterial Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eReference Material\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNIST SRM 888\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaterial Description\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCemented Carbide\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaterial Designation\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eW64-Co25-Ta5\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMatrix\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTungsten Carbide \/ Cobalt \/ Tantalum\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePhysical Form\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFine Powder\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCertified Elements\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCobalt (Co), Tantalum (Ta)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCertified Cobalt Concentration\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24.7%\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCertified Tantalum Concentration\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4.77%\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInformational Carbon Concentration\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4.6%\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eAvailable Configurations\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePrepared XRF Sample Cup \/ 100 g Bulk Powder Jar\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePrimary Application\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eXRF Verification and Analytical Quality Control\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eReference Documentation\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0591\/2671\/0411\/files\/NIST_SRM_888_Cemented_Carbide_W64-Co25-Ta5.pdf?v=1792167831\"\u003e\u003cspan\u003eNIST Certificate of Analysis\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cspan\u003eCertificate of Analysis\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0591\/2671\/0411\/files\/NIST_SRM_888_Cemented_Carbide_W64-Co25-Ta5.pdf?v=1792167831\"\u003eNIST SRM 888 is supported by a Certificate of Analysis\u003c\/a\u003e issued by the National Institute of Standards and Technology (NIST).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe certificate documents certified elemental concentrations, associated measurement uncertainties, and supporting certification information for the reference material.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCertified Elements:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eCobalt (Co): 24.7% by Weight\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTantalum (Ta): 4.77% by Weight\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThese values provide recognized reference points for verifying elemental measurements in tungsten-rich cemented carbide materials.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eImportant XRF Testing Considerations\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eSRM 888 is a powdered reference material rather than a solid metal calibration block. XRF measurement results can be affected by sample preparation, particle size, specimen thickness, X-ray film, instrument calibration, and measurement geometry.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor prepared XRF sample cups, testing should be performed using appropriate instrument methods and consistent measurement conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe certified concentrations apply to the reference material itself. Preparation in an XRF sample cup does not constitute independent certification of the assembled sample cup.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCarbon cannot be directly measured using conventional handheld XRF analyzers.\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The informational carbon concentration may be useful for laboratories employing other analytical techniques.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhy Buy Your XRF Reference Materials from Alloy Geek?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eAlloy Geek specializes in handheld XRF analyzers, certified reference materials, instrument accessories, and analytical testing applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOur prepared XRF reference materials provide a convenient solution for customers who need certified composition standards for routine instrument verification without the additional work of handling and preparing loose powder.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether you're analyzing carbide scrap with a handheld XRF analyzer or performing laboratory quality control with a benchtop system, Alloy Geek provides reference materials selected for practical analytical applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eChoose the prepared XRF sample cup for convenient routine testing or the bulk powder jar for flexible laboratory sample preparation.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOrder NIST SRM 888 today to support reliable cobalt and tantalum measurements in tungsten carbide analysis.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"NIST","offers":[{"title":"X-Ray Fluorescence (XRF) \/ 32mm Sample Cup Prepared for XRF Analysis","offer_id":50779994456203,"sku":"AG-NIST-888-CRM-XRF","price":295.0,"currency_code":"USD","in_stock":true},{"title":"X-Ray Fluorescence (XRF) \/ 100g Bulk Jar","offer_id":50779994488971,"sku":"AG-NIST-888-CRM-100G","price":1495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0591\/2671\/0411\/files\/Handheld_XRF_Sample_OREAS_990c_ISO.jpg?v=1770988061","url":"https:\/\/alloygeek.com\/products\/nist-srm-888-cemented-carbide-certified-reference-material","provider":"Alloy Geek","version":"1.0","type":"link"}