1.99004

Buffer solution

(boric acid/potassium chloride/sodium hydroxide), traceable to SRM from NIST and PTB pH 10.00 (25°C) Certipur^®

• 別名: Boric acid/potassium chloride/sodium hydroxide buffer solution, pH 10.0 calibration buffer
• UNSPSCコード: 12161705
• NACRES: NA.25

特性

• グレード: certified reference material
• 品質水準: 300
• 製品種目: Certipur^®
• pH: 10.0 (25 °C in H₂O)
• bp: 100 °C/1013 hPa
• 密度: 1.0044 g/cm³ at 25 °C
• 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 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 10.00 at 25°C is measured using a combined glass electrode following the 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 pH of the buffer is strongly dependent 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.

アプリケーション

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

特徴および利点

• 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°C

法的情報

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

安全性情報

• ピクトグラム: GHS08
• シグナルワード: Danger
• 危険有害性情報: H360FD
• 注意書き: P201 - P202 - P280 - P308 + P313 - P405 - P501
• 危険有害性の分類: Repr. 1B
• 保管分類コード: 6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• WGK: nwg
• 引火点(°F): Not applicable
• 引火点(℃): Not applicable