1 Scope
This standard specifies the requirements, test methods, inspection rules of dimethyl ether as well as marking, package, transport, storage and safety.
This standard is applicable to the production, inspection and sales of dimethyl ether produced by the dehaydration of methylalcohol vapor phase process or liquid phase process or the dimethy ether synthesized directly by synthetic gas or the recycled dimethyl ether in other product production process. Type I of the product is applied for the propellant, foaming agent, refrigerant and chemical raw materials of aerosol sprays as industrial raw materials and Type II is mainly applied for the materials for domestic fuel, vehicle fuel and industrial fuel.
Structure form: CH3OCH3
Relative molecular mass: 46.7 (according to international relative atomic mass in 2005)
2 Normative References
The following standards contain provisions which, through reference in this text, constitute provisions of this national standard. For dated reference, subsequent amendments (excluding amending error in the text) to, or revisions of, any of these publications do not be applied. However, the parties whose enter into agreement according to these specifications are encouraged to research whether the latest editions of these references are applied or not. For undated references, the latest edition of the normative document is applicable to this standard.
Contents
Foreword I
1 Scope
2 Normative References
3 Properties
4 Requirements
5 Test Methods
6 Inspection Rules
7 Packaging, Transportation and Storage
8 Safety
Appendix A (Informative) Typical Chromatogram of Dimethyl Ether Content Determination and Retention Time
1 Scope
This standard specifies the requirements, test methods, inspection rules of dimethyl ether as well as marking, package, transport, storage and safety.
This standard is applicable to the production, inspection and sales of dimethyl ether produced by the dehaydration of methylalcohol vapor phase process or liquid phase process or the dimethy ether synthesized directly by synthetic gas or the recycled dimethyl ether in other product production process. Type I of the product is applied for the propellant, foaming agent, refrigerant and chemical raw materials of aerosol sprays as industrial raw materials and Type II is mainly applied for the materials for domestic fuel, vehicle fuel and industrial fuel.
Structure form: CH3OCH3
Relative molecular mass: 46.7 (according to international relative atomic mass in 2005)
2 Normative References
The following standards contain provisions which, through reference in this text, constitute provisions of this national standard. For dated reference, subsequent amendments (excluding amending error in the text) to, or revisions of, any of these publications do not be applied. However, the parties whose enter into agreement according to these specifications are encouraged to research whether the latest editions of these references are applied or not. For undated references, the latest edition of the normative document is applicable to this standard.
Contents of HG/T 3934-2007
Contents
Foreword I
1 Scope
2 Normative References
3 Properties
4 Requirements
5 Test Methods
6 Inspection Rules
7 Packaging, Transportation and Storage
8 Safety
Appendix A (Informative) Typical Chromatogram of Dimethyl Ether Content Determination and Retention Time
