HG/T 4592-2014 Electrode active coating of dimensionally stable anode electrolyzer using membrane method
1 Scope
This standard specifies the terms and definitions, requirements, samples, test methods, inspection rules for positive/negative electrode active coating of dimensionally stable anode electrolyzer using membrane method.
This standard applies to dimensionally stable anodes and active cathodes of dimensionally stable anode electrolyzer using ion selective exchange membrane method used in chlor-alkali industry.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 601 Chemical reagent - Preparations of reference titration solutions
GB/T 6682-2008 Water for analytical laboratory use - Specification and test methods (neq ISO 3696: 1987)
GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values
GB/T 9723 Chemical reagent - General rule for flame atomic absorption spectrometric analysis
HG/T 3679 Ruthenium trichloride for dimensionally stable anode coating in electrolyzer
YS/T 595 Chloroiridic acid
3 Terms and Definitions
For the purposes of this document, the following terms and definitions apply.
3.1
dimensionally stable anode
anode coated with noble metal oxide on titanium substrate
3.2
ruthenium content
mass per unit area of calcium in dimensionally stable anode coating
3.3
iridium content
mass per unit area of iridium in dimensionally stable anode coating
3.4
homogeneous degree
degree of homogeneity of coating application, expressed by the relative standard deviation of the zinc content or the corresponding magnitude measured at multiple points
Contents
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Requirements
5 Test sample
6 Test method
7 Inspection rules
Annex A (Normative) Determination of electrode potential
Annex B (Normative) Determination of weightlessness
