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Pack of 25 quality pH 4 calibration buffers produced in accordance with ISO 3696/BS3978 standards using high purity salts, deionized water, certified weight-checked balances, and Class A glassware in a temperature controlled environment monitored with certified thermometers. Reported values are accurate to +/- 0.01 pH @ 25°C and are traceable to NIST Standard Reference Materials (SRMs).

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Hanna pH 4.01 Calibration Buffer Sachets (20mL), 25/pk

Hanna Instruments

HI 70004P

The HI70004P is a premium quality pH 4.01 calibration solution. Each sealed sachet holds just the right amount of pH buffer solution making every sachet as fresh as the day it was packaged! - Highly portable, with a small footprint and a lightweight design. - Color coded label for easy identification of pH buffer values. - Perfect for use with testers and portable meters! Specifications: Accuracy - Standard ±0.01 pH pH Value @25°C - 4.01 Package - sachets Size - 20 mL Quantity - 25
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PN HI 70004P
Manufacturer Hanna Instruments

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