This document specifies the requirements for technical indicators, inspection rules, sampling, marking, packaging, storage, transportation, filling and safety warning of high purity carbon dioxide, and describes the test methods of high purity carbon dioxide.
This document is applicable to the carbon dioxide with a purity greater than or equal to 99.99% (mole fraction), which is prepared by purifying industrial carbon dioxide, industrial tail gas and food additive liquid carbon dioxide.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions 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 150 (All parts) Pressure vessels
GB 190 Packing symbol of dangerous goods
GB/T 3723 Sampling of chemical products for industrial use - Safety in sampling
GB/T 5099.1 Seamless steel gas cylinders - Part 1: Quenched and tempered steel cylinders with tensile strength less than 1100MPa
GB/T 5099.3 Seamless steel gas cylinders - Part 3: Normalized cylinders
GB/T 5099.4 Seamless steel gas cylinders - Part 4: Seamless stainless steel gas cylinders
GB/T 5832.1 Gas analysis - Determination of moisture - Part 1: Electrolytic method
GB/T 5832.2 Gas analysis - Determination of moisture - Part 2: Dew point method
GB/T 5832.3 Determination of moisture in gases - Part 3: The method of cavity ring-down spectroscopy
GB/T 6285 Determination of trace oxygen in gases - Electrochemical method
GB/T 6681 General rules for sampling solid chemical products
GB/T 7144 Coloured cylinder mark for gases
GB/T 8984 Determination of carbon monoxide, carbon dioxide and hydrocarbon in gases - Gas chromatographic method
GB/T 11640 Seamless aluminum alloy gas cylinders
GB/T 14193 Rules for filling of liquefied gas cylinders
GB 15258 General rules for preparation of precautionary label for industrial chemicals
GB/T 16804 Precautionary labels for gas cylinders
GB/T 24159 Welded insulated cylinders
GB/T 28726 Gas analysis - Gas chromatograph with helium ionization detector
GB/T 30685 Technical requirements for vertical road transportation of cylinder
GB/T 34525 Safety rules for handling, loading and unloading, storing and using of cylinder
GB/T 35528 Safety guidelines for cryogenic liquefied gases
JB/T 6898 Cryogenic liquid storage and transportation equipment - Safety regulation for operation
NB/T 47058 Road tankers for refrigerated liquefied gas
TSG R0005 Supervision regulation on safety technology for transportable pressure vessel
TSG 23 Regulation on safety technology for gas cylinder
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
direct sampling
sampling with the sampling medium directly connected to the analyzer
[Source: ISO 10715:1997, 2.1]
3.2
indirect sampling
sampling with the sampling medium not directly connected to the analyzer
Total sulfur content (by sulfur, mole fraction)/10-6 To be determined by the supplier and the purchaser through negotiation
Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Technical indicators 5 Inspection rules 6 Sampling 7 Test methods 8 Marking, packaging, storage, transportation, filling and safety warning Annex A (Normative) Sampling of high purity carbon dioxide Annex B (Informative) Chromatographic gas path flow for determination of total hydrocarbon content in high purity carbon dioxide Annex C (Informative) Safety warning Bibliography
High purity carbon dioxide
1 Scope
This document specifies the requirements for technical indicators, inspection rules, sampling, marking, packaging, storage, transportation, filling and safety warning of high purity carbon dioxide, and describes the test methods of high purity carbon dioxide.
This document is applicable to the carbon dioxide with a purity greater than or equal to 99.99% (mole fraction), which is prepared by purifying industrial carbon dioxide, industrial tail gas and food additive liquid carbon dioxide.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions 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 150 (All parts) Pressure vessels
GB 190 Packing symbol of dangerous goods
GB/T 3723 Sampling of chemical products for industrial use - Safety in sampling
GB/T 5099.1 Seamless steel gas cylinders - Part 1: Quenched and tempered steel cylinders with tensile strength less than 1100MPa
GB/T 5099.3 Seamless steel gas cylinders - Part 3: Normalized cylinders
GB/T 5099.4 Seamless steel gas cylinders - Part 4: Seamless stainless steel gas cylinders
GB/T 5832.1 Gas analysis - Determination of moisture - Part 1: Electrolytic method
GB/T 5832.2 Gas analysis - Determination of moisture - Part 2: Dew point method
GB/T 5832.3 Determination of moisture in gases - Part 3: The method of cavity ring-down spectroscopy
GB/T 6285 Determination of trace oxygen in gases - Electrochemical method
GB/T 6681 General rules for sampling solid chemical products
GB/T 7144 Coloured cylinder mark for gases
GB/T 8984 Determination of carbon monoxide, carbon dioxide and hydrocarbon in gases - Gas chromatographic method
GB/T 11640 Seamless aluminum alloy gas cylinders
GB/T 14193 Rules for filling of liquefied gas cylinders
GB 15258 General rules for preparation of precautionary label for industrial chemicals
GB/T 16804 Precautionary labels for gas cylinders
GB/T 24159 Welded insulated cylinders
GB/T 28726 Gas analysis - Gas chromatograph with helium ionization detector
GB/T 30685 Technical requirements for vertical road transportation of cylinder
GB/T 34525 Safety rules for handling, loading and unloading, storing and using of cylinder
GB/T 35528 Safety guidelines for cryogenic liquefied gases
JB/T 6898 Cryogenic liquid storage and transportation equipment - Safety regulation for operation
NB/T 47058 Road tankers for refrigerated liquefied gas
TSG R0005 Supervision regulation on safety technology for transportable pressure vessel
TSG 23 Regulation on safety technology for gas cylinder
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
direct sampling
sampling with the sampling medium directly connected to the analyzer
[Source: ISO 10715:1997, 2.1]
3.2
indirect sampling
sampling with the sampling medium not directly connected to the analyzer
[Source: ISO 10715:1997, 2.7]
4 Technical indicators
The requirements of Table 1 shall be met.
Table 1 Technical indicator requirements
Item Indicator
Carbon dioxide (CO2) purity (mole fraction)/10-2 ≥99.99 ≥99.995 ≥99.999
Hydrogen (H2) content (mole fraction)/10-6 <5 <2 <0.5
Oxygen (O2) content (mole fraction)/10-6 <10 <5 <1
Nitrogen (N2) content (mole fraction)/10-6 <60 <30 <3
Carbon monoxide (CO) content (mole fraction)/10-6 <5 <2 <0.5
Total hydrocarbon (THC) content (by methane, mole fraction)/10-6 <5 <3 <2
Moisture (H2O) content (mole fraction)/10-6 <15 <8 <3
Total sulfur content (by sulfur, mole fraction)/10-6 To be determined by the supplier and the purchaser through negotiation
Contents of GB/T 23938-2021
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Technical indicators
5 Inspection rules
6 Sampling
7 Test methods
8 Marking, packaging, storage, transportation, filling and safety warning
Annex A (Normative) Sampling of high purity carbon dioxide
Annex B (Informative) Chromatographic gas path flow for determination of total hydrocarbon content in high purity carbon dioxide
Annex C (Informative) Safety warning
Bibliography
