- Joined
- Nov 15, 2009
- Messages
- 2,757
- Reaction score
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Label says traceable to NIST. Interesting.I used pH 7 and 10 of this brand:
pH Buffer Calibration Solution Kit 3-Pack: pH 4.00, pH 7.00, pH 10.00 Buffers — 250 ml (8.4 fl oz) Each — Color Coded — NIST Traceable for All pH Meters: Amazon.com: Industrial & Scientific
pH Buffer Calibration Solution Kit 3-Pack: pH 4.00, pH 7.00, pH 10.00 Buffers — 250 ml (8.4 fl oz) Each — Color Coded — NIST Traceable for All pH Meters: Amazon.com: Industrial & Scientifica.co
I just used some expired Milwaukee and the probe is not reading right now. Not sure if it’s the probe or the calibration fluid.

