pH Buffer Powder Calibration Solution Kit – pH 4.00, 6.86 & 9.18 for pH Meter Calibration

The pH Buffer Powder Calibration Solution Kit is a simple and reliable solution for calibrating pH meters and pH testers. Each powder packet is pre-measured and designed to be mixed with 250ml distilled water to prepare a standard pH calibration solution. This kit is suitable for regular calibration of digital pH meters used in water testing, aquariums, hydroponics, swimming pools, RO systems, spas, laboratories, and general liquid testing applications.

This calibration powder set usually includes three standard buffer values: pH 4.00, pH 6.86, and pH 9.18, allowing users to calibrate their pH meter across acidic, neutral, and alkaline ranges. It is easy to store, easy to carry, and more convenient than liquid calibration solutions.

Accurate and Reliable Calibration

For correct pH measurement, regular calibration of the pH meter is very important. These buffer powders help prepare accurate calibration solutions, so the pH tester can give stable and reliable readings. The pre-measured packets reduce mixing errors and make the calibration process easy even for beginners.

Long Shelf Life and Easy Storage

Compared to ready-made liquid pH calibration solutions, buffer powder has a longer shelf life. Each packet is sealed separately to protect it from moisture and contamination. This makes it suitable for long-term storage, field use, laboratory use, and regular maintenance of pH testing instruments.

User-Friendly for Multiple Applications

This pH buffer powder kit can be used with most standard pH meters and pH testers. It is widely used for testing and maintaining pH levels in aquariums, drinking water, RO systems, hydroponic nutrient solutions, swimming pools, spas, soil-water testing, and laboratory experiments.

Key Features

• Complete pH Calibration Set: Includes standard pH buffer powders such as pH 4.01, pH 6.86, and pH 9.18.
• Makes 250ml Solution: Each packet can be mixed with 250ml distilled water.
• Pre-Measured Powder: Helps maintain accuracy and reduces manual mixing mistakes.
• Long Shelf Life: Powder form offers better storage life compared to liquid solutions.
• Moisture-Proof Packaging: Individually sealed packets are easy to store and carry.
• Wide Compatibility: Suitable for most digital pH meters and pH testers.
• Easy to Use: Simple mixing and calibration process.
• Useful for Water Testing: Suitable for aquarium, pool, spa, RO water, hydroponics, and drinking water testing.

Technical Specifications

Easy to Use

1. Take three clean containers and add 250ml distilled water in each container.
2. Open one packet each of pH 4.01, pH 6.86, and pH 9.18 buffer powder.
3. Empty each packet into a separate 250ml distilled water container.
4. Stir or shake well until the powder is fully dissolved.
5. Use the prepared solution to calibrate your pH meter as per the meter’s calibration instructions.
6. Rinse the pH electrode with clean distilled water between each calibration solution.

Typical Application Scenarios

Aquarium Water Testing

Useful for calibrating pH testers used to monitor aquarium water quality and maintain a safe environment for fish and aquatic plants.

Hydroponics and Gardening

Helps calibrate pH meters used for checking nutrient solution pH in hydroponic systems, indoor farming, and plant growth setups.

RO and Drinking Water Testing

Suitable for checking and maintaining pH meter accuracy while testing RO water, drinking water, and general water quality.

Swimming Pool and Spa Maintenance

Useful for pool and spa users who regularly test pH balance for safe and clean water maintenance.

Laboratory and Educational Use

Can be used in schools, colleges, laboratories, and water testing experiments where pH measurement accuracy is required.

4. Package Includes

• 1 x pH 4.00 Buffer Powder Packet
• 1 x pH 6.86 Buffer Powder Packet
• 1 x pH 9.18 Buffer Powder Packet

Note: Slight Variation  depending on  supplier batch.

Important Product Disclaimer

Please note that the product information provided on our website may not be entirely accurate as it is collected from various sources on the web. While we strive to provide the most up-to-date information possible, we cannot guarantee its accuracy. We recommend that you always read the product labels, warnings, and directions before using any product. Product images are shown for illustrative purposes only and may differ from the actual product.

Note

Use only distilled water to prepare the calibration solution for better accuracy. Do not use tap water or mineral water, as it may affect the final pH value. Always rinse the pH probe with distilled water before moving from one buffer solution to another.

Images are for representation only.