1.99017

Buffer solution (Potassium dihydrogen phosphate, di-sodium hydrogen phosphate) traceable to SRM from NIST and PTB

pH 6.86 (25 °C in H₂O), Certipur^®

• 分類程式碼代碼: 12161706
• NACRES: NA.25

屬性

• 等級: certified reference material
• 品質等級: 300
• 產品線: Certipur^®
• pH值: 6.86 (25 °C in H₂O)
• 應用: environmental; food and beverages; general analytical; industrial qc; pharmaceutical
• 格式: mixture
• 儲存溫度: 15-25°C

描述

一般說明

It is a certified buffer solution of Potassium dihydrogen phosphate & di-sodium hydrogen phosphate, gravimetrically prepared using high-quality reagents at a registered calibration laboratory. It has a pH value of 6.86 at 25°C, measured using a combined glass electrode following a 5-point calibration method. The measurement is made in accordance with DIN 19268 using reference buffer solutions compliant to DIN 19266, NIST, IUPAC, Ph. Eur, and USP. The pH value of the buffer solution depends on the temperature and therefore a constant temperature must be maintained during its use.

Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.
Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.

應用

The buffer solution is used as a standard in analytical procedures for the calibration of pH measuring instruments or pH electrodes and as a control for the measurement of pH of other solutions.

特點和優勢

Measured and qualified at an ISO/IEC 17025 and ISO 17034 accredited laboratory Directly traceable to secondary reference standards from NIST and primary certified reference materials 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 quality management system 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

包裝

30 ml in Fibre case

法律資訊

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

安全資訊

• 儲存類別代碼: 12 - Non Combustible Liquids
• 水污染物質分類（WGK）: nwg
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable