GB/T 30296-2013Perfluorinated ion-exchange membrane for chlor-alkali industry—Test method (English PDF)
氯碱工业用全氟离子交换膜 测试方法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 31, 2013
Implementation date
August 1, 2014
Scope
GB/T 30296-2013 is the English-translated version of 氯碱工业用全氟离子交换膜 测试方法.
GB/T 30296-2013 gives the test methods for the perfluorinated ion-exchange membrane used in the chlor-alkali industry, called the chlor-alkali ion-exchange membrane in the text.
Clause 1 states that the methods cover appearance, dimensional deviation and physical and chemical properties, and that the standard applies to the testing of chlor-alkali ion-exchange membranes made mainly from perfluorosulfonic acid resin, perfluorocarboxylic acid resin, a reinforcing mesh and a hydrophilic coating.
Its contents list is short: scope, normative references, clause 3 with the test methods, and two informative annexes, one showing the device used to check the tightness of a chlor-alkali ion-exchange membrane and one showing a schematic of the solute diffusion coefficient.
Clause 3.1 sets out the appearance examination: the membrane is taken out of the pretreatment liquid in which it is kept, a sodium or potassium hydroxide solution of about pH 12, laid flat on the inspection table and examined by eye in natural light or under a 40 W fluorescent lamp for uniformity of colour, smoothness and freedom from wrinkles, uniformity of the hydrophilic coating, and clarity and completeness of the text and pattern markings.
Clause 3.2 deals with dimensional deviation, its first subclause measuring length, width and diagonal according to GB/T 6673, with the membrane kept wet throughout, and giving a formula for the length tolerance.
The normative references indicate the physical and chemical tests involved, among them GB/T 454 for bursting strength, GB/T 457 for the folding of paper and paperboard, GB/T 1040.3 for tensile properties, GB/T 6672 and GB/T 20220 for thickness, GB/T 16578.2 for Elmendorf tear resistance, GB/T 8144-2008 for cation exchange capacity and SJ/T 10171.5 for the surface resistance of a membrane.
The foreword states that the series of national standards on perfluorinated ion-exchange membrane for the chlor-alkali industry comprises three standards and names two of them, GB/T 30295-2013 on general technical requirements and GB/T 30297-2013 on application.
The standard is administered by the National Technical Committee on Membrane Standardization (SAC/TC382); it was issued on 2013-12-31 and has applied since 2014-08-01.
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Document preview — GB/T 30296-2013
National Standard of the People's Republic of China
- ICS
- 83.120
- Classification
- G 31
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Introduction
- 1 Scope
- 2 Normative references
- 3 Test Method
- Appendix A (informative) using ion-exchange membrane chlor-alkali tightness detector means 7 schematic
- Annex B (informative) Schematic of solute diffusion coefficient
Foreword
"Chlor-alkali industry perfluorinated ion-exchange membrane" series of national standards include the following three criteria.
--- GB/T 30295-2013 "chlor-alkali industry perfluorinated ion-exchange membrane General technical conditions";
--- GB/T 30297-2013 "chlor-alkali industry perfluorinated ion-exchange membrane application specifications."
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
1 Scope
This standard specifies the appearance of the chlor-alkali industry perfluorinated ion-exchange membrane (hereinafter referred to as chlor-alkali ion-exchange membrane), the chemical and physical size deviation Energy Test Method.
This standard applies to perfluorinated sulfonic acid resin, perfluorinated carboxylic acid resin, reinforcing mesh and a hydrophilic coating as the main raw material obtained ion-exchange membrane chlor-alkali Testing methods.
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.
Determination of GB/T 454 paper bursting strength
Determination of GB/T 457 folding of paper and paperboard
Preparation of GB/T 601 chemical reagent standard titration solution
GB/T 603 chemical reagent in test methods - Preparations with
GB/T 1040.3 plastic Determination of tensile properties Part 3: Test conditions for films and sheets
GB/T 6672 plastic film and sheet thickness measurement of the mechanical measurements
Determination of GB/T 6673 plastic film and sheet length and width
GB/T 6682 Analysis Laboratory use specifications and test methods
GB/T 8144-2008 Determination of cation exchange capacity of the resin exchange
GB/T 16578.2 Determination of plastic film and sheet tear resistance - Part 2: Elmendorf (Elmendor) method
GB/T 20220 plastic film and sheeting average sample thickness, volume average mass per unit area and thickness measurement weighing method (called Volume Thickness)
Determination of SJ/T 10171.5 alkaline storage battery separator performance testing of surface resistance of the membrane
3 Test Method
3.1 Appearance
It will be saved in the pretreatment solution (pH value of the sodium hydroxide or potassium hydroxide solution of about 12) in the chlor-alkali ion-exchange membrane removed and tile inspection Measured on the platform, under natural light or 40W fluorescent lamps, using ion-exchange membrane chlor-alkali visually observed color is uniform, whether smooth and no wrinkles pro Aqueous coating is uniform, text and pattern identification is clear and complete.
3.2 Size deviation
3.2.1 Length, width and diagonal tolerance
It will be saved in the pretreatment liquid alkali ion-exchange membrane removed and placed on a test platform, according to the method GB/T 6673 provisions were measured in Volume, measured ion-exchange membrane chlor-alkali process should be kept moist.
Length tolerance deltal (mm) according to equation (1).
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 603Chemical reagent - Preparations of reagent solutions for use in test methods
- GB/T 6672Plastics film and sheeting - Determination of thickness by mechanical scanning
- GB/T 6682Water for analytical laboratory use - Specification and test methods
- GB/T 8144-2008Determination of exchange capacity of cation exchange resins
- GB/T 16578.2Plastics - Film and sheeting - Determination of tear resistance - Part 2: Elmendorf method
- GB/T 20220Plastics -- Film and sheeting -- Determination of average thickness of a sample, and average thickness and yield of a roll, by gravimetric techniques (gravimetric thickness)
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Related Standards
GB/T 16578.2-2009 — Plastics - Film and sheeting - Determination of tear resistance - Part 2: Elmendorf method
GB/T 20220-2006 — Plastics -- Film and sheeting -- Determination of average thickness of a sample, and average thickness and yield of a roll, by gravimetric techniques (gravimetric thickness)
GB/T 603-2023 — Chemical reagent - Preparations of reagent solutions for use in test methods
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