GB/T 41316-2022 in English
VALIDGuidelines for the characterization of dispersion stability
- Issued on:2022-03-09
- Implemented on:2022-10-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$243.00
《GB/T 41316-2022分散体系稳定性表征指导原则》由TC168（全国颗粒表征与分检及筛网标准化技术委员会）归口，主管部门为国家标准化管理委员会。
Introduction
Analysis of the core content of the standard
| Stability phenomenon | Characterization method | Acceleration technology |
|---|---|---|
| Sedimentation/creaming | Optical scanner, X-ray transmission | Centrifugal acceleration (RCA value calculation) |
| Ostwald ripening | Particle size analyzer | High temperature aging (Arrhenius equation) |
| Flocculation/agglomeration | Electroacoustic spectrometer | Freeze-thaw cycle |
Technology evolution background
This standard is equivalent to ISO/TR13097:2013, and for the first time introduces a systematic method for characterizing the stability of dispersed systems into the domestic standardization system. The traditional visual method (5.2.1) is gradually replaced by spatial resolution optical instruments (5.2.2), and the measurement sensitivity is increased by more than 100 times.
Key Terms
Implementation Suggestions
- The new product development phase should adopt a combined verification of the correlation method + direct method (5.3+5.2)
- The quality inspection phase recommends the use of Near Infrared Backscattering Instrument for non-destructive testing
- Shelf life prediction requires the establishment of an internal acceleration factor database
Industry Application Cases
Cosmetic emulsion: Pass 45℃/3 months accelerated test equivalent to 2 years stability at room temperature, emulsion layer thickness needs to be <5% of initial height
Pesticide suspension: Use ASTM D6930 method to evaluate sedimentation stability, centrifugal RCA value is set to 2000
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