Review on 🔬 Traceable Reference Standards for Biopharm Calibration in Lab and Scientific Products by Zack Frazier

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 place and hopefully they'll stay fine. A good buy in my opinion - I like to calibrate the meter before using it, so mixing buffers isn't the best option for me. Would buy again