GB/T 5559-1993
Non-ionic surface active agents obtained from ethylene oxide and ethylene oxide/propylene oxide block copolymers. Determination of cloud point (English Version)
- Standard No.
- GB/T 5559-1993
- Language
- Chinese, Available in English version
- Release Date
- 1993
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Status
- 2011-12
- Replace By
- GB/T 5559-2010
- Latest
- GB/T 5559-2010
- Scope
- This standard specifies five (A, B, C, D and E) methods for determining the cloud point of nonionic surfactants. Methods A, B and C are mainly applicable to the determination of the cloud point of nonionic surfactants formed by condensation of fatty alcohols, fatty acids, fatty acid esters, fatty amines, alkylphenols and other lipophilic compounds with ethylene oxide. Methods D and E are mainly applicable to the determination of the cloud point of ethylene oxide-propylene oxide block polymerized nonionic surfactants. Nonionic surfactants polymerized from lipophilic compounds such as fatty acids or fatty acid esters with ethylene oxide-propylene oxide blocks. Method E is generally not applicable, but has only been demonstrated to be reproducible in assays It can only be used when it is sexual.
GB/T 5559-1993 history
- 2011 GB/T 5559-2010 Non-ionic surface active agents obtained from ethylene oxide and ethylene oxide/propylene oxide block copolymers.Determination of cloud point
- 1993 GB/T 5559-1993 Non-ionic surface active agents obtained from ethylene oxide and ethylene oxide/propylene oxide block copolymers. Determination of cloud point
