NIST191D

pH Standards

NIST^® SRM^® 191d, set of 191d-I + 191d-II

• UNSPSC 코드: 41116107
• NACRES: NA.24

속성

• Quality Level: 100
• 형태: powder
• 포장: pkg of 1 bottle x 25 g; 1 bottle x 30 g
• 제조업체/상표: NIST^®
• 응용 분야: general analytical

설명

일반 설명

This Standard Reference Material (SRM) is intended for use in preparing solutions for calibrating electrodes for pH measuring systems. SRM 191d consists of two components, each prepared to ensure high purity and uniformity:Sodium Bicarbonate, NaHCO3 (191d-I); and Sodium Carbonate, Na2CO3 (191d-II). However, neither SRM component is certified for purity of substance. A unit of SRM 191d consists of 25 g of sodium bicarbonate (191d-I) and 30 g of sodium carbonate (191d-II), each contained in its respective clear glass bottle. For more information, please refer to the COA and SDS.

SRM 191D_cert

SRM 191D_SDS

기타 정보

Please download a current certificate at nist.gov/SRM for current analytes and certified values.

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

안전성 정보

• 픽토그램: GHS07
• 신호어: Warning
• 유해 및 위험 성명서: H319
• 예방조치 성명서: P264 - P280 - P305 + P351 + P338 - P337 + P313
• Hazard Classifications: Eye Irrit. 2
• Storage Class Code: 13 - Non Combustible Solids