LF PH probe Calibration fluid 4.01

[Coral2Coral]

Hi BA Reefers,
As the title said, are looking for 4.01 ph calibration fluids. If anyone close by SF have any extra, would love to buy it from you. Needed to calibration my Alkatronic ph probe. TIA!

 

[Wlachnit]

I should have some but I'm out in Pleasanton. I'm curious as to why you need 4.0?

 

[Meshmez]

I have some in San Jose.

I should have some but I'm out in Pleasanton. I'm curious as to why you need 4.0?

Assuming the alkatronic works similar to the khg, it relies on low ph to detect the endpoint. Therefore you calibrate to 4 and 7 instead of 7 and 10.

 

[Coral2Coral]

Yes, it needs to be calibrated with 4 & 7 solution.

I should have some but I'm out in Pleasanton. I'm curious as to why you need 4.0?

Thanks, but a bit too far.