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Buffer solution

品牌
Supelco
货号
1.99003
规格纯度
(boric acid/potassium chloride/sodium hydroxide solution), traceable to SRM from NIST and PTB pH 9.00 (25°C) Certipur®
参考价格
1620.01 *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:
Buffer solution
产品介绍:

产品说明

一般描述

The boric acid/potassium chloride/sodium hydroxide certified buffer solution is gravimetrically prepared using high-quality reagents and water at a registered calibration laboratory. Its pH value of 9.00 at 25℃ is calculated using the 5-point calibration method with a combined glass electrode. The measurement is made following DIN 19268 using reference buffer solutions compliant to DIN 19266, NIST, IUPAC, Ph. Eur, and USP. The buffer′s pH value strongly depends on the temperature and therefore a constant temperature must be maintained during its use.

应用

It is used as a buffer reference standard to calibrate pH measuring instruments or pH electrodes and as a control to measure the pH of other solutions.

特点和优势

  • Measured and qualified at an ISO/IEC 17025 and ISO 17034 accredited laboratory
  • Traceable to secondary reference standard from NIST and primary certified reference standard from PTB
  • Ready-to-use solution available in 30 mL sachets
  • Accompanied with a detailed and batch-specific certificate of analysis (CoA) for an effective audit
  • Product label follows the ISO Guide 31 and contains information about ordering number, article description, lot number, safety data, and expiry date
  • Packaging material subjected to comprehensive stability studies as per ISO Guide 35
  • Accurate up to +/- 0.03 at 25℃

法律信息

CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany

产品性质

质量水平300
等级certified reference material
产品线Certipur®
pH值(酸碱度)9.0 (25 ℃ in H2O)
bp100 ℃/1013 hPa
密度1.00 g/cm3 at 20 ℃
application(s)environmental
food and beverages
general analytical
industrial qc
pharmaceutical
格式mixture
储存温度15-25℃

安全信息

储存分类代码12 - Non Combustible Liquids
WGKnwg
闪点(F)Not applicable
闪点(C)Not applicable

SUPELCO

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