PH buffer powder (PHmeter calibration Powder 6.86, 4.01, 9.18)

A PH buffer powder is used to resist any PH change/ maintain constant even when exposed to a small amount of acid or base.

PH buffer powder

Comparison table

 ProductImage Available at
1ESEE 6-Pack pH Meter Buffer Solution Powder 2 packages of 4.00, 2 packages of 6.86 and 2 package of 9.18Amazon
2Unido pH Meter Buffer Solution Powder Set3-Pack 4.00pH, 6.86pH, and 9.18pHAmazon
3Beioust 20 Pcs PH Buffer Solution Powder 10 packs pH4.01 and 10 packs pH6.86Amazon
4Jackyee 20 Pcs PH Buffer Solution Powder10 packs pH4.01 and 10 packs pH6.86Amazon
5YUNAWU 1 Set PH Buffer Solution Powder PH For Test Meter Measure Calibration10 packs pH4.01 and 10 packs pH6.86Amazon

The PH buffer powder is necessary for digital PH meter for calibration.

There are three PH buffer powder

  • 6.86
  • 4.01
  • 9.18

Acidic buffer is the solution that has PH less than 7 or on the acid side while basic buffer has PH higher than 7 or on the alkaline side

#1: ESEE 6-Pack Meter Buffer Solution Powder

Available at

It includes 2 packages of 4.00, 2 packages of 6.86 and 2 package of 9.18 calibration solution powder for all pH needs

#2: Unido pH Meter Buffer Solution Set

Available at:

It comes in a 3-Pack for Precise pH Meter Calibration, 4.00pH, 6.86pH, and 9.18pH Solution, Easy and Portable, 

Also available in 6.86 Set (3 Pack)

Jackyee PH Buffer solution

Available at

Jackyee set to include 20 pieces, 10 packs pH4.01 and 10 packs pH6.86

YUNAWU 1 Set PH Buffer Powder For Test Meter Measure Calibration

Available at:

Each set come in 20 packs of popular pH buffer solutions, 10 packs pH4.01 and 10 packs pH6.86

Beioust 20 Pcs PH Buffer Solution

Available at:

It comes in 20 packs of popular pH buffer solutions, 10 packs pH4.01 and 10 packs pH6.86

How to make PH buffer powder into solution

  • Add 250 ml of distilled water in a clean container
  • Empty the powder (each pack) and add into the clean container with water
  • Stir until the powder completely dissolves
  • The solution is ready for calibration and follows step by step to calibrate your PH meter
  • Same procedure for each pack
  • After stirring each pack if you are sharing the same item make sure you rinse the item you are using to stir with using distilled and dry it with clean tissue or cloth after use/ before moving to next solution

All the above Calibration powder has an indefinite shelf life

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