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GB/T 32760-2016: Determination of methane emissions from ruminants -- Sulfur hexafluoride (SF6) tracer -- Gas chromatographic method
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 32760-2016 | English | 199 |
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Determination of methane emissions from ruminants -- Sulfur hexafluoride (SF6) tracer -- Gas chromatographic method
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GB/T 32760-2016
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Basic data | Standard ID | GB/T 32760-2016 (GB/T32760-2016) | | Description (Translated English) | Determination of methane emissions from ruminants -- Sulfur hexafluoride (SF6) tracer -- Gas chromatographic method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | B40 | | Classification of International Standard | 65.020 | | Word Count Estimation | 10,115 | | Date of Issue | 2016-06-14 | | Date of Implementation | 2017-01-01 | | Regulation (derived from) | National Standard Announcement No. 8 of 2016 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | GB/T 32760-2016: Determination of methane emissions from ruminants -- Sulfur hexafluoride (SF6) tracer -- Gas chromatographic method
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Determination of methane emissions from ruminants - Sulfur hexafluoride (SF6) tracer-Gas chromatographic method
ICS 65.020
B40
National Standards of People's Republic of China
Determination of Methane Emissions from Ruminants
Sulfur hexafluoride tracer gas chromatography
Determination ofmethaneemissionsfromruminants-
Sulfurhexafluoride (SF6) tracer-Gaschromatographic mRNA
2016-06-14 release
2017-01-01 Implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Management Committee released
Foreword
This standard is drafted in accordance with the rules given in GB/T 1.1-2009.
This standard is proposed by the Ministry of Agriculture of the People's Republic of China.
This standard is under the jurisdiction of the National Committee for Standardization of Animal Husbandry (SAC/TC274).
The drafting of this standard. Ministry of Agriculture Animal Husbandry Environment Equipment Quality Supervision, Inspection and Testing Center (Beijing), Chinese Academy of Agricultural Sciences Agricultural Ring
Institute for Environment and Sustainable Development.
The main drafters of this standard. Dong Hongmin, Tao Xiuping, Shang Bin, You Yubo, Peng Xiaobei, Liu Chong, Zhu Zhiping, Chen Yongxing, Huang Hongkun.
Determination of Methane Emissions from Ruminants
Sulfur hexafluoride tracer gas chromatography
1 Scope
This standard specifies the sulfur hexafluoride tracer gas chromatographic method for ruminant methane emissions.
This standard applies to ranches such as cattle, sheep and camels.
2 normative reference documents
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article
Pieces. For undated references, the latest edition (including all modifications) applies to this document.
GB/T 8984 Determination of carbon monoxide, carbon dioxide and hydrocarbons in gases - Gas chromatographic method
3 Principle of the method
The permeate tube containing sulfur hexafluoride (SF6) was put into the rumen of the ruminant, and the methane (CH4) and the permeate produced in the rumen
Of the SF6 with the ruminant breathing process together from the body. Collection and determination of CH4 and SF6 in ruminant exhaled gas samples
Concentration, according to the penetration rate of the infiltration of SF6 to calculate the ruminant exhaled CH4 emissions.
4 Reagents and Materials
Except for air, unless otherwise specified, high purity gases (99.999% purity) are used for gases other than air.
4.1 Nitrogen (N2).
4.2 Pills. Veterinary equipment.
4.3 Gastric tube. Veterinary equipment, diameter according to animal selection.
4.4 rumen fistula. ruminant rumen in the back of the hamst on the capsule, and the outside of the channel.
4.5 SF6 standard gas. should be the same as the main components of the sample to be tested, nitrogen is dilution gas.
4.6 CH4 standard gas. should be the same as the main components of the sample to be measured, nitrogen gas as dilution.
5 instruments
5.1 Gas chromatograph
5.1.1 Equipped with an electron capture detector (ECD) and a hydrogen flame ion detector (FID), ECD and FID both use 5A molecular sieve columns.
5.1.2 Column preparation and treatment. 245μm ~ 198μm (60 mesh ~ 80 mesh) 5A molecular sieve into the outer diameter of 3mm stainless steel
Packed column, column length 3m. Filled with two ends of the column packed with quartz cotton, aging in the 250 ℃ environment 2h.
5.2 SF6 permeation tube
Refer to Appendix A for the preparation and use.
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