NIST191D

pH Standards

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

• 分類程式碼代碼: 41116107
• NACRES: NA.24

屬性

• 品質等級: 100
• 形狀: powder
• 包裝: pkg of 1 bottle x 25 g; 1 bottle x 30 g
• 製造商／商標名: NIST^®
• 應用: general analytical

描述

一般說明

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

其他說明

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

法律資訊

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

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

安全資訊

• 象形圖: GHS07
• 訊號詞: Warning
• 危險聲明: H319
• 防範說明: P264 - P280 - P305 + P351 + P338 - P337 + P313
• 危險分類: Eye Irrit. 2
• 儲存類別代碼: 13 - Non Combustible Solids