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JCTLM Database: higher-order reference materials, methods and services
Details : NRM 384 - urea
| Type (acronym) | rm |
|---|---|
| Type | reference material |
| Unique Nomination Number | NRM 384 |
| Analyte Name | urea |
| IUPAC IFCC Number | CAS57-13-6 |
| List I or II | List I |
| Traceable to SI | Yes |
| Applicable Matrices | urea crystalline material |
| Identifier Number | GBW09201 |
| Name | urea |
| Certifying Organization | NRCCRM |
| Issued by NMI with Certificate | Yes |
| RM Listed in BIPM Key Comparison Database (KCDB) | No |
| Quantity | Mass fraction |
| From (0) | 99.9 |
| To (0) | 99.9 |
| Unit (0) | % |
| From (1) | 0.2 |
| To (1) | 0.2 |
| Unit (1) | % |
| Level of Confidence (%) | 95 % |
| Physical Form of RM Matrix | neat solid |
| Citation of Specific Publication Reference | Not applicable: a high-purity material used as a primary calibrator for higher order reference methods |
| Expression of Uncertainty | GUM Compliant |
| How to Obtain Certificate | contact Xu Bei |
| Recommended for Publication in the JCTLM List | Yes |
| Review Team Name | metabolites and substrates |
| Published CRM ISO Compliance | False |
| Organization Acronym | NIM |
| Organization Name | National Institute of Metrology |
| Organization Website | http://www.nim.ac.cn/ |
| Organization Country ISO Code | CN |
| Organization Country Name | China |
| Analyte Category Name | Metabolites and substrates |