GB/T 32360-2015Test methods for ultrafiltration membranes (English PDF)
超滤膜测试方法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 31, 2015
Implementation date
May 1, 2016
Scope
GB/T 32360-2015 is the English-translated version of 超滤膜测试方法.
GB/T 32360-2015 is the Chinese standard "Test methods for ultrafiltration membranes". Its scope clause reads: This standard specifies the ultrafiltration membrane water permeability and molecular weight cut (also called molecular weight cut off) test method.
This standard applies to hollow fiber, flat, tubular ultrafiltration membrane water permeability and cutting molecular testing. Its clauses include terms and definitions.
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Document preview — GB/T 32360-2015
National Standard of the People's Republic of China
- ICS
- 07.100.20
- Classification
- J 77
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 3.1 UF ultrafiltrationmembrane
- 3.2 Pure water permeability
- 3.3 Dead-end filtration
- 3.4 Cross-flow filtration
1 Scope
This standard specifies the ultrafiltration membrane water permeability and molecular weight cut (also called molecular weight cut off) test method.
This standard applies to hollow fiber, flat, tubular ultrafiltration membrane water permeability and cutting molecular testing.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 223.59-2008 Steel and Alloy Determination of phosphorus content by bismuth phosphomolybdate blue spectrophotometric method and antimony phosphomolybdate blue spectrophotometry
Laboratory use specifications and test methods GB/T 6682 Analysis
Determination of GB/T 11914-1989 Water quality chemical oxygen demand dichromate method
GB/T 20103-2006 membrane separation technology terms
HY/T 050-1999 hollow fiber ultrafiltration membrane test methods
JJG178 ultraviolet, visible, near-infrared spectrophotometer test procedures
3 Terms and Definitions
GB/T 20103-2006 define the following terms and definitions apply to this document. For ease of use, repeat the following list
GB/T 20103-2006 some terms and definitions.
3.1 UF ultrafiltrationmembrane
Starting from a very thin layer separating action of the epidermis and a thicker play a supportive role sponge or fingers porous layer, having a molecular weight cut
Film several hundred to several million.
[GB/T 20103-2006, the definition 5.1.1]
3.2 Pure water permeability
Predetermined flow rate, temperature, pressure, water in unit time through unit area of membrane permeation rate.
[GB/T 20103-2006, the definition 5.1.3]
3.3 Dead-end filtration
Pressure driven, feeding solvent and solute membrane pore size of less than permeate through the membrane, and the membrane pore size is greater than the feed solute trapped on the membrane surface,
And with the accumulation of a filtration time operating mode.
3.4 Cross-flow filtration
Pressure driven, parallel to the film surface feed flow (tangential flow), feeding solvent and solute membrane pore size is less than the vertical permeate through the membrane (vertical
DC), and the feed is greater than the pore size of the solute is trapped and go with the flow of the remaining A method of operation.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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