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pH Standards

货号
NIST191D
规格纯度
NIST® SRM® 191d, set of 191d-I + 191d-II
参考价格
14963.5 *本价格含增值税费
促销
服务
  • 原厂保证
  • 包邮
  • 增值税票
数量
-+
产品名称:
pH Standards
产品介绍:

产品说明

一般描述

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

法律信息

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

基本信息

NACRESNA.24

产品性质

质量水平100
形式powder
包装pkg of 1 bottle x 25 g; 1 bottle x 30 g
application(s)pharmaceutical (small molecule)

安全信息

储存分类代码13 - Non Combustible Solids
WGKWGK 1
闪点(F)Not applicable
闪点(C)Not applicable

Sigma-Aldrich

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