General description

The boric acid/potassium chloride/sodium hydroxide Certipur® buffer solution is gravimetrically prepared using high-quality reagents. It is quality controlled and qualified in an ISO/IEC 17025 accredited calibration laboratory. Its pH value of 10.00 at 20°C is analyzed using a combined glass electrode. The pH qualification is based on 5-point calibration method, in accordance with DIN 19268, against certified primary reference standards as per DIN 19266, IUPAC, NIST, USP, and Ph. Eur.

Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.

• Available in secure high-density plastic bottles and sustainable Titripac® packaging generating lesser waste
• Reliable as subjected to detailed stability studies as per ISO Guide 35
• Product label having relevant information on order number, article description, lot number, expiry date and safety data, in accordance with ISO Guide 31
• Accompanied with a detailed and batch-specific certificate of analysis (CoA) for an effective quality management system
• Measured and qualified in ISO/IEC 17025 and ISO 17034 accredited laboratory
• Traceable to SRMs from NIST and primary certified reference standards from PTB