NIST912B

Urea

• 동의어(들): Urea
• UNSPSC 코드: 41116107
• NACRES: NA.24

속성

• Grade: certified reference material
• 설명: NIST^® SRM^® 921b
• 양식: crystals
• 포장: pkg of 25 g
• 제조업체/상표: NIST^® SRM 912b
• 기술: Karl-Fischer titration: suitable; NMR: suitable; ion chromatography: suitable; liquid chromatography (LC): suitable
• 응용 분야: clinical testing

설명

일반 설명

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

애플리케이션

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.

기타 정보

• 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.

법적 정보

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

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