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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 (25 x 20 mL) (HI7004P)

Hanna Instruments

HI 70004P

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PN HI 70004P
Manufacturer Hanna Instruments
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