Electrolyte for vanadium flow battery
1 Scope
This standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation and storage, quality certificates and order (contract) contents of the electrolyte for vanadium flow battery.
This standard is applicable to electrolyte for vanadium flow battery in sulfuric acid system.
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 190-2009 Packing symbol of dangerous goods
GB/T 6678 General principles for sampling chemical products
GB/T 6680 General rules for sampling liquid chemical products
GB/T 6908-2008 Analysis of water used in boil and cooling system—Determination of electrical conductivity
GB/T 10247-2008 Methods of viscosity measurement
GB/T 11901-1989 Water quality—Determination of suspended substance—Gravimetric method
GB/T 19161-2016 Packaging containers—Composite intermediate bulk container
GB/T 23942 Chemical reagents—General rules for inductively coupled plasma atomic emission spectrometry
GB/T 30903 Inorganic chemicals for industrial use—Determination of impurity element—Inductively coupled plasma mass spectrometry(ICP-MS)
3 Requirements
3.1 Product classification
The products are classified into three types according to the valence of vanadium ion: trivalent electrolyte, 3.5 valence electrolyte and tetravalent electrolyte. Each type is classified into two grades according to the impurity content: grade I product and grade II product.
3.2 Principal component content
The vanadium content, sulfate content and the proportion of vanadium ions with different valence in the product shall meet those specified in Table 1. When the purchaser has other requirements for the principal component content of the product, it shall be indicated in the order (or contract).
Table 1
。。。。。
3.5 Insoluble impurities
The product shall be free of insoluble impurities.
3.6 Physical properties
The supplier shall provide the conductivity and viscosity indexes of electrolyte in the quality certificate, and report them as measured values.
4 Test methods
4.1 Principal component content
The vanadium content and the proportion of vanadium ions with different valence shall be analyzed in accordance with the requirements of Annex A. The sulfate content shall be analyzed in accordance with the requirements of Annex B. In case of any disputes, it may be resolved through negotiation between the supplier and the purchaser.
Foreword i
1 Scope
2 Normative references
3 Requirements
4 Test methods
5 Inspection rules
6 Marking, packaging, transportation, storage and quality certificate
7 Order (or contract) contents
Annex A (Informative) Determination of vanadium ion content in vanadium electrolyte
Annex B (Informative) Determination of sulfate content in vanadium electrolyte
Bibliography
Electrolyte for vanadium flow battery
1 Scope
This standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation and storage, quality certificates and order (contract) contents of the electrolyte for vanadium flow battery.
This standard is applicable to electrolyte for vanadium flow battery in sulfuric acid system.
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 190-2009 Packing symbol of dangerous goods
GB/T 6678 General principles for sampling chemical products
GB/T 6680 General rules for sampling liquid chemical products
GB/T 6908-2008 Analysis of water used in boil and cooling system—Determination of electrical conductivity
GB/T 10247-2008 Methods of viscosity measurement
GB/T 11901-1989 Water quality—Determination of suspended substance—Gravimetric method
GB/T 19161-2016 Packaging containers—Composite intermediate bulk container
GB/T 23942 Chemical reagents—General rules for inductively coupled plasma atomic emission spectrometry
GB/T 30903 Inorganic chemicals for industrial use—Determination of impurity element—Inductively coupled plasma mass spectrometry(ICP-MS)
3 Requirements
3.1 Product classification
The products are classified into three types according to the valence of vanadium ion: trivalent electrolyte, 3.5 valence electrolyte and tetravalent electrolyte. Each type is classified into two grades according to the impurity content: grade I product and grade II product.
3.2 Principal component content
The vanadium content, sulfate content and the proportion of vanadium ions with different valence in the product shall meet those specified in Table 1. When the purchaser has other requirements for the principal component content of the product, it shall be indicated in the order (or contract).
Table 1
。。。。。
3.5 Insoluble impurities
The product shall be free of insoluble impurities.
3.6 Physical properties
The supplier shall provide the conductivity and viscosity indexes of electrolyte in the quality certificate, and report them as measured values.
4 Test methods
4.1 Principal component content
The vanadium content and the proportion of vanadium ions with different valence shall be analyzed in accordance with the requirements of Annex A. The sulfate content shall be analyzed in accordance with the requirements of Annex B. In case of any disputes, it may be resolved through negotiation between the supplier and the purchaser.
Contents of GB/T 37204-2018
Foreword i
1 Scope
2 Normative references
3 Requirements
4 Test methods
5 Inspection rules
6 Marking, packaging, transportation, storage and quality certificate
7 Order (or contract) contents
Annex A (Informative) Determination of vanadium ion content in vanadium electrolyte
Annex B (Informative) Determination of sulfate content in vanadium electrolyte
Bibliography
