REAGECON pH 4.00 Buffer Solution ±0.01 at 25°C, 500 mL, NIST TRACEABLE Product Code: 1040525

Product Overview

The REAGECON pH 4.00 Buffer Solution ±0.01 at 25°C (500 mL) is a premium-quality calibration standard designed for the accurate calibration, verification, and quality control of pH meters and electrodes. Manufactured under stringent quality standards, this buffer is ISO 17025 tested, NIST traceable, and directly traceable to the IUPAC pH scale, ensuring precise, reliable, and internationally accepted pH measurements. The solution is formulated for excellent stability, even after opening, making it ideal for laboratory, industrial, research, pharmaceutical, environmental, food, and water testing applications. �

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Key Features

Certified pH 4.00 ±0.01 at 25°C

Volume: 500 mL

Product Code: 1040525

NIST Traceable Reference Standard

Tested using ISO 17025 Accredited methods

Manufactured under ISO quality standards

Direct traceability to the IUPAC pH scale

Excellent long-term stability after opening

Colorless liquid

Ready-to-use calibration solution

Suitable for single-point and multi-point pH calibration

Supplied with Certificate of Analysis 

Technical Specifications

Specification

Details

Brand

REAGECON

Product Name

pH 4.00 Buffer Solution

Product Code

1040525

pH Value

4.00 ±0.01 at 25°C

Volume

500 mL

Physical State

Liquid

Appearance

Clear, Colorless

Traceability

NIST Traceable

Testing Standard

ISO 17025 Accredited

Calibration Temperature

25°C

Application

Calibration & Verification of pH Meters

Container

Plastic Bottle

Solubility

Completely miscible with water

Applications

Calibration of laboratory pH meters

Routine pH meter verification

Water and wastewater analysis

Pharmaceutical laboratories

Food & beverage quality control

Chemical manufacturing

Educational laboratories

Environmental monitoring

Research laboratories

Industrial quality assurance

Compatible Instruments

Suitable for calibration of pH meters from leading manufacturers, including:

Hanna Instruments

Thermo Scientific

Eutech Instruments

Mettler Toledo

Horiba

Hach

Oakton

Milwaukee

Lutron

Other laboratory pH meters supporting standard buffer calibration

Storage Instructions

Store tightly closed.

Keep at 15–25°C.

Protect from direct sunlight.

Avoid contamination by rinsing the electrode before immersion.

Do not pour used buffer back into the original bottle.

Keep container tightly sealed after use.

Package Contents

1 × REAGECON pH 4.00 Buffer Solution (500 mL)

Certificate of Analysis/Test Certificate (where supplied)

Benefits

Highly accurate calibration

Excellent repeatability

Stable formulation

Internationally traceable standards

Ideal for ISO, GLP, and GMP laboratories

Improves measurement reliability

Ready for immediate use