pH Buffer Calibration Solution Kit 2-Pack — one pH 4.00 (red) and one pH 7.00 (Yellow), Each 250 mL (8.4 fl oz) — NIST Traceable Reference Standards for All pH Meters
$17.99
- Color Coded for Easy Identification
- Individually Bagged 250 mL (8.4 fl oz) Poly Bottles
- Lot Numbered and Expiration Dated
- Free Certificate of Analysis and Traceability
- For Pharmaceutical, Academic, Research and Industrial Uses
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