ORP Calibration Buffer Powder — 256 mV (Redox Potential Analyzer / Test Pen Calibration) What it does Singlepack powder formulation that creates a 256 mV ORP (redox) calibration solution when reconstituted with water. Designed for calibrating ORP meters, redox analyzers, handheld ORP pens, and electrode probes. Key benefits Portable and lightweight: powder form removes the need to or carry bulky liquids, reducing transport cost and handling restrictions. Easy onsite preparation: one pack plus 50 ml of distilled or purified water produces readytouse 256 mV calibration liquid. Practical and convenient: ideal for field technicians and laboratories that need a reliable calibration option without liquid logistics. Consistent target value: produces a standard 256 mV buffer solution for verifying and adjusting ORP instrument readings. Main attributes Function: ORP (redox) calibration buffer to set or check electrode/meter accuracy at 256 mV. Compatibility: suitable for ORP/Redox analyzers, handheld ORP pens, portable meters, benchtop meters, and replacement electrode checks. Form and size: dry powder in singleuse packs; each pack is intended to be dissolved in 50 ml distilled or purified water to produce the calibration solution. Performance: provides a stable 256 mV reference after proper preparation for instrument calibration and troubleshooting. How to use Add 50 ml of distilled water or purified water to one pack of powder. Mix until the powder is fully dissolved. Use the resulting solution to calibrate or verify ORP meters per the instrument manufacturer's calibration procedure. Typical use scenarios Field service: calibrate handheld ORP pens and portable analyzers onsite without carrying multiple bottles of liquid buffers. Water treatment and aquaculture: quickly verify ORP probe accuracy during routine maintenance to ensure correct redox control and treatment decisions. Laboratory and QA/QC checks: prepare a fresh 256 mV reference solution for instrument checks, method validation, or troubleshooting. Notes Use distilled or purified water to prepare the solution for accuracy. Follow your instrument manufacturer's calibration steps when using the prepared buffer.