Neuftech 15Pcs PH4.01 PH6.86 PH9.18 PH Buffer Power 250ml PH Solution Power Ideal for PH Meter Accurate Calibration (Ph solution accuracy ±0.01ph)

Buenos

Seems to be fairly accurate it does state 25c on the packet to get an accurate pH

Well reading the sellers discriptions of use in the listing ofDirections for use:1. Prepared distilled water: 250mL for each pack.2. Completely empty the power into a clean 250mL glass beaker.3. Add 250mL of distilled water to the beaker.4. Stir until the power has completely dissolved.I spent £9 on a bottle of distilled water Amazon , then these arrived and state you need deionised water not distilled and there is a big difference ,So I basically waisted £9 on a bottle of bloody water ? Most expensive bottle of water I ever bought and in the end it would have been cheaper for me too buy the ready made solutions in bottles and not thjs powder , I not only payed £9 on distilled water I now have too go out and but deionised water ,It was also delayed two days after stated delivery date ,

product was as described

It's Spot on. It's for my mum for when she water's her plants

Bought to calibrated ph meter, good product at reasonable price. Does the job.

Is what it is. It calibrates your ph pen.

Good

Does what it's ment to and good shipping

Works perfect had no issues. Don't confuse them with your splenda sachet.

Excellent

Great thanks

Very good