




🧪 Calibrate like a pro — precision that keeps you ahead of the curve!
The Apera Instruments AI1113 pH Calibration Buffer Solution Kit offers ultra-precise pH calibration with ±0.01 accuracy at 25°C, certified by NIST standards. Manufactured in an ISO 9001:2015 facility using premium reagents, it features color-coded, double-sealed bottles ensuring easy identification and a 2-year unopened shelf life, making it the go-to choice for professionals demanding reliable and traceable pH calibration.







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