Buffer solution pH 4 and pH 7 sachets 2x10

Product description

Buffer solution pH 4 and pH 7 – sachet 20 ml

This set combines buffer solution pH 4 and buffer solution pH 7 in handy sachets of 20 ml. Ideal for two-point calibration of your pH probe or pH meter in swimming pool, spa, aquarium or pond. Calibration solution in sachets stays fresh until you open the sachet. pH buffer solution is also called pH buffer.

• 10× sachet pH 4 (pH 4.01 at 25 °C)
• 10× sachet pH 7 (pH 7.00 at 25 °C)
• One sachet, one calibration — do not reuse or pour back
• Expiry date and lot code on every sachet

Calibrate first with pH 7, then pH 4. Always read the manual of your meter or dosing system. NIST traceable.

Do you also need ORP? View the set pH 4, pH 7 and 475 mV. Separate sachets and bottles: pH buffer solution.

Buffer solution pH 4 and pH 7 in sachets: how to calibrate

Open the sachet and place your pH probe directly in it. You do not need a beaker. Calibrate as the manual of your meter requires and then discard the sachet.

How many calibrations are in this set?

The set contains 10 sachets pH 4 and 10 sachets pH 7: enough for 10 calibrations at 2 points. Our pH meter GT-500PH recognises both values: pH 4.01 and pH 7.00. If your meter asks for pH 7 and pH 10, choose the set pH 7 and pH 10 in sachets.

Order the buffer solution set pH 4 and pH 7 in sachets. Questions? Contact us. Fast delivery throughout the UK.