Has anyone gotten a bad bottle of Pinpoint brand salinity calibration fluid?
I had calibrated my pinpoint probe using this stuff awhile back. I recently tested water from two different online vendors, both read very low according to my probe. The bottle had been completely new, unopened, and full.
So I found a bottle of another brand calibration fluid. It turns out this one is reading way lower, just like the water from the vendors I had ordered from. My salinity wasn't terribly high but I was surprised that the fluid was so inaccurate.
Has anyone else had a similar problem?
I had calibrated my pinpoint probe using this stuff awhile back. I recently tested water from two different online vendors, both read very low according to my probe. The bottle had been completely new, unopened, and full.
So I found a bottle of another brand calibration fluid. It turns out this one is reading way lower, just like the water from the vendors I had ordered from. My salinity wasn't terribly high but I was surprised that the fluid was so inaccurate.
Has anyone else had a similar problem?