NIST912B

Harnstoff

• Synonym(e): Harnstoff
• UNSPSC-Code: 41116107
• NACRES: NA.24

Eigenschaften

• Qualität: certified reference material
• Beschreibung: NIST^® SRM^® 921b
• Form: crystals
• Verpackung: pkg of 25 g
• Hersteller/Markenname: NIST^® SRM 912b
• Methode(n): Karl-Fischer titration: suitable; NMR: suitable; ion chromatography: suitable; liquid chromatography (LC): suitable
• Anwendung(en): clinical testing

Beschreibung

Allgemeine Beschreibung

Each unit of SRM 912b contains 25 grams of high-purity crystalline urea. A unit of SRM 912b consists of 25 g of high-purity crystalline urea.

SRM 912B_cert

SRM 912B_SDS

Anwendung

NIST Urea is intended for use as a primary calibrant for the measurement procedures and validating methods used in clinical pathology laboratories to determine urea blood nitrogen.

Sonstige Hinweise

• The NIST-certified mass fraction value for urea was determined using a mass balance approach for purity assessment, and the values are metrologically traceable to the SI derived unit for mass fraction, expressed as a percentage.
• Maintenance and expiration of SRM certification, instructions for handling, storage, and use are provided on NIST certificate.

Rechtliche Hinweise

NIST is a registered trademark of National Institute of Standards and Technology

SRM is a registered trademark of National Institute of Standards and Technology