Colourless pH buffer IUPAC standard solution with certificate of conformity and traceability reporting, exact pH buffer value with related expanded uncertainty (k=2). Fully traceable to the Standard Hydrogen Electrode (SHE) through Certified Reference Material. All standards are formulated in compliance with NIST, IUPAC and DIN19266 specifications.

• Traceable to IUPAC/NIST pH scale
• Guaranteed shelf-life thanks to premium packaging
• Accredited calibration laboratory
• Fully traceable standards
• Totally reliable packaging
• GLP right from the start and every day
• Proven traceability
• Certificate of conformity available for download from www.hach.com