🔬 Traceable Reference Standards for Biopharm Calibration in Lab and Scientific Products Review

The ones I've gotten differ by 0.1, but I've found my readings consistently vary by the same number even at different pH levels, so I agree admit it's a bit different because I can figure out what the correct number is by just adding 0.1 to the reading and it's the only 6.86 solution I can find on Amazon.

So I got this to calibrate my pH meter to see if my hot sauces are good. The solutions are quite nice. I don't have a comparison, but my blood glucose meter likes them. I'll get that back when I'm done. A good thing. Highly recommended. Actually. I recommended her to my brother-in-law. He bought a few and is happy with them too.

I'm not a scientist but I don't like mixing 250ml of distilled water with active buffers. I calibrated my last gauge to 7, 4 and 10, the current gauge which is most commonly available is calibrated to 6.86, 4 and 9.18. My new meter was able to detect these solutions and calibrate accordingly without the need for any mixing. After calibrating I measured my tap water and it looks like my old pH meter broke the glass probe so I'm assuming these solutions are accurate. Store them in a cool, dry…