Humidity Standard solution 75 % RH

Humidity Standard Solution 75% RH is a pharmacopeial-grade reference solution designed for use in pharmaceutical quality control, laboratory calibration, and analytical testing for the calibration and performance verification of hygrometers, humidity sensors, and environmental monitoring instruments that measure relative humidity in controlled atmospheres.

🏭⚗️ Production
Prepared under strictly controlled GMP- and pharmacopeial-compliant conditions to ensure precise relative humidity, chemical stability, and minimal contamination. The 75% RH value is achieved using saturated salt solutions or stabilized polymeric matrices in deionized water, providing consistent and reproducible humidity levels. The solution is supplied in chemically resistant, sealed, and light-protected containers to prevent evaporation, contamination, or degradation. Each batch is validated according to USP <1116>, EP 2.2.28, and relevant pharmaceutical testing standards to ensure accuracy, uniformity, and reproducibility.

🔬 Properties
A clear, homogeneous aqueous solution producing a controlled relative humidity of 75% at 25 °C. Exhibits excellent stability under recommended storage conditions. Minor variations in relative humidity may occur with prolonged storage or exposure to extreme temperatures; gentle equilibration restores the target humidity without affecting the reference value.

🧪 Applications
Used in pharmaceutical, analytical, and educational laboratories for calibration, validation, and performance testing of hygrometers, humidity chambers, and environmental monitoring instruments. Suitable for method validation, routine QC analysis, equipment qualification (IQ/OQ/PQ), and compliance with pharmacopeial standards requiring controlled relative humidity references. Ideal for ensuring accurate environmental conditions in formulation stability studies, packaging evaluations, and laboratory research.

⚠️ Safety
Considered low-hazard but should be handled according to standard laboratory safety practices. Avoid ingestion and direct contact with skin and eyes. Use appropriate personal protective equipment, including gloves, goggles, and a lab coat. Store in tightly sealed, light-protected containers in a cool, dry environment. Dispose of according to pharmaceutical laboratory waste regulations and environmental safety guidelines.