1.09406

Buffer solution

(potassium hydrogen phthalate), traceable to SRM from NIST and PTB pH 4.01 (25°C) Certipur^®

• 別名: Buffer solution pH 4.01 (Potassium hydrogen phthalate)
• UNSPSCコード: 12161704
• NACRES: NA.25

特性

• グレード: certified reference material
• 品質水準: 300
• 製品種目: Certipur^®
• pH: 4.01 (25 °C in H₂O)
• アプリケーション: environmental; food and beverages; general analytical; industrial qc; pharmaceutical
• フォーマット: mixture
• 保管温度: 15-25°C

詳細

詳細

The potassium hydrogen phthalate buffer solution is prepared gravimetrically with potassium hydrogen phthalate and high-purity water. It is analyzed using a combined glass electrode following a 5-point calibration method, in accordance with DIN 19268, against certified primary reference standards as per DIN 19266.

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.

アプリケーション

It is used in analytical procedures for the calibration, qualification, and monitoring of pH measuring instruments and as a control for testing other buffer solutions.

特徴および利点

• Measured and qualified in an ISO/IEC 17025 and ISO 17034 accredited laboratory
• Traceable to SRMs from NIST and primary certified reference standards from PTB
• Ready-to-use solution available in a sealed bottle and an innovative Titripac^® packaging for positive environmental impact due to reduced waste generation
• Long-lasting with a shelf life of 3 years
• Accompanied with a detailed certificate of analysis (CoA) for an effective audit

法的情報

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

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

安全性情報

• 保管分類コード: 12 - Non Combustible Liquids
• WGK: WGK 1
• 引火点(°F): Not applicable
• 引火点(℃): Not applicable