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Buffer solutions

品牌
Supelco
货号
1.99041
规格纯度
(boric acid/potassium chloride/sodium hydroxide), traceable to SRM from NIST and PTB pH 11.00 (25°C) Certipur®
参考价格
476.04 *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 solutions
产品介绍:

产品说明

一般描述

The boric acid/ potassium chloride/sodium hydroxide buffer solution is gravimetrically prepared at a registered calibration laboratory with high-quality reagents and water. Its pH value of 11.00 at 25℃ is measured using a combined glass electrode following a 5-point calibration method. The measurement is made following DIN 19268 using reference buffer solutions compliant to DIN 19266, NIST, IUPAC, Ph. Eur, and USP. The buffer pH is temperature dependent and therefore a constant temperature must be maintained during its use.

应用

The buffer is used as a 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
  • Available in a secure 500 mL PE bottle and 4 L innovative and sustainable Titripac® PE/Aluminum packaging for a reduced waste generation
  • 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

法律信息

CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany
Titripac 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)11.0 (25 ℃ in H2O)
密度1.01 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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