Low cost NIST pH calibration solution.
pH calibrating buffers are formulated with NIST specified ingredients including EPA registered broad-spectrum antimicrobials to assure long-life free of mould and bacterial growth. These are color coded for easy recognition.
Accuracy is referenced to NIST Standard Reference Materials ±0.01 pH @ 25°C for routine buffers. Traceability certificates are furnished on request. The buffers are packed in 500-mL containers. All screw capped containers include tamper evident seal to prevent leakage and security. These items are always in stock for prompt shipment.