Description
Meytec buffer solution – pH 9.18 – bottle 250 ml
The Meytec buffer solution pH 9.18 bottle 250 ml is an alkaline calibration liquid for pH meters and controllers used in swimming pools, spas and other water treatment systems. It provides a stable pH 9.18 reference value so you can calibrate or verify electronic pH probes that need accurate readings in the higher part of the pH scale.
Use of pH 9.18 buffer solution
Electronic pH meters gradually drift as the probe ages and is exposed to chlorinated water, chemicals and changing temperatures. Calibrating with Meytec buffer solution pH 9.18 allows you to correct this drift at the alkaline end of the range, which is useful when the process requires accurate measurements above neutral pH or when you want to confirm that the probe response remains linear.
In many calibration routines, the pH 9.18 buffer is used together with neutral and acidic buffers such as pH 7.00 and pH 4.01. This multi point calibration refines the meter response across the full working range and is recommended for precise pH control in demanding applications.
250 ml bottle for regular calibration
The Meytec buffer solution pH 9.18 bottle 250 ml is supplied in a practical screw cap bottle, ideal for users who calibrate or verify their instruments on a regular basis. The 250 ml volume offers a good balance between quantity and shelf life for technicians, service partners and pool operators.
- 250 ml of ready to use alkaline pH 9.18 buffer solution.
- Design bottle with secure cap for repeated opening and closing.
- Suitable for bench meters, handheld testers and fixed pH controllers.
For best results, only a small working volume should be poured into a clean container for each calibration, and the main bottle should be closed immediately after dispensing to help maintain the specified pH value.
Calibration with Meytec pH 9.18 buffer
The Meytec buffer solution pH 9.18 bottle 250 ml is compatible with most pH meters that accept external buffer solutions. It is intended for calibration and verification of pH probes used in pools, spas, process tanks and other installations where the pH may rise above neutral or where full range calibration is required.
- Alkaline reference point for multi point calibration routines.
- Supports precise adjustment of pH probes at higher pH values.
- Complements neutral and acidic Meytec buffer solutions for complete calibration.
Calibration procedures should always follow the instrument manufacturer instructions, including the recommended order of buffer values, stabilisation times and temperature compensation.
Example multi point calibration procedure
A typical multi point calibration using Meytec buffers uses pH 7.00 as the neutral point, pH 4.01 on the acidic side and pH 9.18 on the alkaline side. This combination allows the meter to correct both offset and slope across a wide pH range.
- Rinse the pH probe with clean water and gently dry with a soft cloth.
- Calibrate first in pH 7.00 buffer and adjust the meter to read 7.00.
- Rinse the probe, then calibrate in pH 4.01 buffer if required by the instrument.
- Rinse again and pour a small amount of pH 9.18 buffer into a clean container.
- Immerse the probe in the pH 9.18 buffer, wait for a stable value and adjust the reading to 9.18 according to the meter menu.
After calibration the probe can be rinsed and returned to normal measurement with improved accuracy from the acidic region up to the alkaline zone around pH 9.
Storage and handling recommendations
To keep the Meytec buffer solution pH 9.18 bottle 250 ml within specification, it should be stored in a cool, dry place away from direct sunlight and heat sources. Careful handling helps to avoid contamination and extends the useful life of the buffer solution.
- Always close the bottle tightly immediately after use.
- Use only clean glass or plastic containers for the working volume.
- Do not pour used buffer back into the original bottle.
When combined with proper probe storage, cleaning and regular calibration using Meytec buffers, this solution helps maintain stable pH readings and supports accurate dosing control in pool and water treatment systems.
