Apparatus for colorimetric determinations of oxigen with O-tolydine
With a rubber stopper and PTFE stopcocks
- Manufactured from high-quality borosilicate Duran glass
- Marked with a unique serial number (e.g. 001/2026, 002/2026, etc.)
- Blue graduation markings
- Calibrated in accordance with ISO 4787 and supplied with a factory certificate confirming the quality and thermal annealing of the glass, a factory calibration certificate, and a volume determination form issued by the internal quality control laboratory, showing the calibration points of the apparatus for each serial number
- Calibrated at 4 calibration points
