General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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GB/T 42415-2023
Introduction
The GB/T 42415-2023 Determination of Static Surface Tension for Surfactants is a national standard in China that provides guidelines for measuring the static surface tension of surfactants. Surfactants are widely used in various industries, including personal care, household cleaning, and industrial processes, due to their ability to reduce surface tension and enhance the performance of liquids.
This standard specifies the test methods and instruments required to accurately measure the static surface tension of surfactants. It aims to ensure consistency and reliability in the evaluation of surfactant products, facilitating fair trade and quality control. By determining the static surface tension, manufacturers can assess the effectiveness of their surfactant formulations and make necessary adjustments to improve product performance.
The measurement of static surface tension involves carefully preparing test solutions and using specialized instruments, such as a stalagmometer or a tensiometer. These instruments measure the force required to detach a liquid droplet from a capillary tube, providing a quantitative value for the surface tension. The standard also provides guidelines for sample preparation, test conditions, and calculation methods.
The GB/T 42415-2023 standard is essential for manufacturers, researchers, and quality control personnel involved in the production and evaluation of surfactant products. Compliance with this standard ensures accurate and reliable measurement of static surface tension, enabling the development of high-quality surfactants that meet the needs of various industries.
GB/T 42415-2023 history
2023GB/T 42415-2023 Determination of static surface tension of surfactants