Description
Product Overview
NANBEI pH buffer calibration solution powder delivers reliable and precise pH meter calibration for various applications. This product includes 15 packets: 5 each of pH 4.01, 7.00, and 10.01 solutions, ensuring comprehensive calibration coverage. With an accuracy of ±0.01pH at 25°C, it meets industrial and scientific standards. The powder is designed for easy mixing with 250ml of distilled or pure water, producing stable calibration solutions. Product dimensions are 10.6 x 4.7 x 0.7 inches, weighing 1.45 ounces, and it was first available on May 15, 2024. Manufactured by NANBEI, it ranks #17 in Chemical Buffers and has earned a 4.5-star rating from 45 customer reviews, highlighting its dependability and user satisfaction.

Usage
This pH buffer powder is ideal for environments requiring precise pH measurements, such as laboratories, water treatment facilities, and home testing setups. It is commonly used for calibrating pH meters before testing drinking water, aquariums, swimming pools, spas, and hydroponic systems. The target audience includes scientists, aquarium enthusiasts, pool maintenance professionals, and hydroponic gardeners who need accurate and consistent pH readings to maintain optimal conditions. Occasions range from routine equipment checks to specific water quality assessments, ensuring devices perform accurately in diverse settings.
Why Choose Us
NANBEI stands out due to its commitment to accuracy and cost-effectiveness. The pH buffer powder offers superior precision with ±0.01pH deviation, reducing calibration errors and enhancing measurement reliability. Unlike pre-mixed solutions, the powder format extends shelf life and allows for fresh preparation, minimizing waste. The inclusion of multiple pH levels (4.01, 7.00, and 10.01) provides versatility for full calibration cycles. Additionally, the ability to store unused solution for up to 20 days when sealed offers repeated use, saving money and resources. Backed by positive customer feedback and a high best-seller rank, this product ensures quality and user trust.
Key Features
- Easy to use: Simply mix powder with 250ml distilled water for quick calibration.
- High accuracy: Provides ±0.01pH precision at 25°C for reliable measurements.
- Cost-effective: Includes 15 packets (5 each of pH 4.01, 7.00, and 10.01) for flexible usage.
- Economical storage: Unused solution can be sealed and stored for 20 days, reducing waste.
- Wide applicability: Suitable for testing pH in drinking water, aquariums, pools, spas, and hydroponics.
FAQ
How do I prepare the pH calibration solution?
Mix one packet of the pH buffer powder with 250ml of distilled or pure water. Stir gently and insert your pH meter into the solution, waiting a few seconds for stable readings.
What is the shelf life of the mixed solution?
When stored in a sealed container, the unused calibration solution remains effective for up to 20 days, ensuring you can use it multiple times without loss of accuracy.
Can I use this powder with any pH meter?
Yes, this pH buffer powder is compatible with most pH meters designed for calibration with standard pH 4.01, 7.00, and 10.01 solutions, making it versatile for various devices.
Why are there three different pH values included?
The three pH levels (4.01, 7.00, and 10.01) allow for comprehensive calibration across acidic, neutral, and alkaline ranges, ensuring your pH meter is accurate for all types of measurements.
Is this product safe for aquarium and drinking water testing?
Absolutely, the pH buffer powder is formulated for safe use in testing drinking water, aquariums, and other water systems, providing reliable results without harmful additives.




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