Product Details

Hanna Buffer Solution pH 4.01 (1000 ml Bottle) – NIST Standardized Acidic Calibration Solution

The Hanna Buffer Solution pH 4.01 (Model: HI-7004L) is one of the most commonly used buffer solutions in Bangladesh and worldwide for acidic pH calibration. It is ideal for laboratories, water purification plants, the food industry, aquatics, and hydroponics — wherever accurate acidic reference calibration is required. The latest Hanna portable and bench-top microprocessor instruments are calibrated using this solution to ensure maximum precision and stability.

Key Features

• Accurate Acidic Calibration: Ensures stable and precise readings for calibrating at pH 4.01.
• NIST Standardized: Traceable to National Institute of Standards and Technology for reliability.
• Ready to Use: Supplied pre-mixed for direct calibration — no dilution required.
• Tamper-Proof Design: Airtight seal prevents CO₂ contamination and pH drift.
• Batch Traceability: Each bottle includes batch number, expiry date, and pH vs. temperature correlation table.
• Universal Compatibility: Compatible with all major pH meters, including Hanna microprocessor models.

Specifications

Applications

• Water purification and treatment plants
• Food and beverage industries
• Hydroponics and aquatics
• Environmental monitoring laboratories
• Industrial and educational laboratories

Usage & Storage Tips

1. Store at 25°C, protected from direct sunlight to maintain pH stability.
2. Always use clean instruments when calibrating pH meters.
3. Use with Hanna cleaning solutions for maximum electrode performance.
4. pH 4 buffer can also be used as an emergency electrode storage solution.

Why Choose Hanna Buffer Solutions?

Hanna buffer solutions are prepared according to precise formulas and standardized to NIST reference materials for guaranteed accuracy. Each bottle features batch identification, expiry date, and a temperature correlation chart for full traceability. With a tamper-proof airtight seal, Hanna ensures that your calibration solution remains pure and stable. Available in convenient sizes from 20ml sachets to 3.78L containers, these buffers meet the needs of both laboratory and industrial users.