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1.09477 Buffer solution pH 7.00 (20°C) Certipur, green, Merck

109477 Merck

Certipur® pH 7.00 buffer solution is a certified reference material (CRM) designed for the precise calibration and monitoring of pH meters and electrodes. It is a phosphate-based buffer, color-coded green to ensure easy identification and to prevent laboratory errors during the calibration process.

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The 1.09477 buffer solution is a certified reference material (CRM) manufactured at an ISO/IEC 17025 and ISO 17034 accredited laboratory. It is gravimetrically prepared using high-quality reagents and qualified via a 5-point calibration method in accordance with DIN 19268. The solution is specifically designed to meet the rigorous requirements of regulated industries, including pharmaceutical, food and beverage, and environmental testing.

Advantages

  • Direct traceability to secondary reference standards from NIST and primary standards from PTB.
  • Green color coding for easy identification and prevention of titration errors.
  • Ready-to-use format eliminates preparation time and potential contamination.
  • Stabilized for long-term storage and reliable performance.
  • Detailed batch-specific Certificate of Analysis (CoA) provided for audit compliance.

Technical specifications

Catalogue number 1.09477
Product line Certipur®
pH Value 7.00 (20 °C)
Composition di-sodium hydrogen phosphate / potassium dihydrogen phosphate
Traceability NIST, PTB
Color Green
Density 1.00 g/cm3 (20 °C)
Storage temperature 15-25°C

Available packaging options

1094770500 500 ml
1094774000 4 L
1094779010 10 L 
Brand Merck