How do I get certified reference material?

How do I get certified reference material?

General steps required in production of a certified reference material typically include:

1. Collection or synthesis of material.
2. Sample preparation (including homogenization, stabilization, bottling etc.)
3. Homogeneity testing.
4. Stability assessment.
5. Value assignment (“characterization” in ISO REMCO terms).

How does NIST certify a reference material?

Certification of NIST pH SRMs requires that: Homogeneity of the candidate material(s) for each pH SRM be evaluated by intercomparisons of randomly selected aliquots of candidate material(s) normalized to the preceding issuance of the corresponding pH SRM using a glass electrode.

Why are certified reference materials important?

They provide a benchmark for analytical laboratories around the world to deliver accurate and comparable results. Testing laboratories use certified reference materials to calibrate measuring instruments, evaluate test procedures and for quality control purposes.

What is CRM in ISO?

Certified Reference Materials (CRMs) are ‘controls’ or standards used to check the quality and traceability of products. A reference standard for a unit of measurement is an artifact that embodies the quantity of interest in a way that ties its value to the reference base for calibration.

What are some examples of reference materials?

Reference Materials

• Dictionaries (both language and topical)
• Encyclopedias.
• Bibliographies (lists of resources on a specific topic)
• Research handbooks and guides.
• Catalogs.
• Atlases and maps.
• Directories.

What are standard reference materials used for?

Standard Reference Material (SRM) in a registered trade mark of the US National Institute of Science and Technology (NIST) and is used by that organisation to refer to certified reference materials produced by NIST that meet additional NIST-specific certification criteria.

What are reference materials?

Reference materials are various sources that provide background information or quick facts on any given topic.

What are the types of reference materials?

What are the five major types of reference materials?

The most familiar types are dictionaries, encyclopedias, almanacs, biographical sources, directories, atlases, and bibliographies.

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