Calibration Buffer Sachets pH 4.01 &7.01 (10 X 20mL, 5 Each)

Premium quality pH 4.01 and 7.01 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.

Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened.

This line of calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened sachet.

Key Features:

• Colour coded label for easy pH buffer value identification
• Accuracy of ±0.01 pH @ 25℃
• Temperature chart of the actual pH value at various temperatures printed on each sachet

Available as a pack of 10 sachets ( 5 x pH 4.01 and 5 x  pH 7.01 with each containing 20 mL of buffer)