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GB/T 21979-2008: Feed grade -- L-Threonine
Status: Obsolete
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 21979-2008 | English | 279 |
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Feed grade -- L-Threonine
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GB/T 21979-2008
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Basic data | Standard ID | GB/T 21979-2008 (GB/T21979-2008) | | Description (Translated English) | Feed grade -- L-Threonine | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | B46 | | Classification of International Standard | 65.120 | | Word Count Estimation | 7,726 | | Date of Issue | 2008-06-17 | | Date of Implementation | 2008-10-01 | | Quoted Standard | GB/T 601; GB/T 602; GB/T 603; GB/T 6435; GB/T 6438; GB/T 6682; GB 10648; GB 13078; GB/T 13079; GB/T 13080; GB/T 14699.1; Chinese Pharmacopoeia 2005 edition two | | Regulation (derived from) | National Standard Approval Announcement 2008 No.10 (Total No.123) | | 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 | | Summary | This standard specifies the technical requirements for feed grade L-threonine products, test methods, inspection rules, labels, packaging, transport, storage and shelf life. This standard applies to starch, sugar as the main raw material, fermentation, extract made from feed grade L-threonine. | GB/T 21979-2008: Feed grade -- L-Threonine---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.
Feed grade. L-Threonine
ICS 65.120
B46
National Standards of People's Republic of China
Feed Grade L- Threonine
Posted 2008-06-17
2008-10-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard by the National Standardization Technical Committee Feed Industry and focal points.
This standard was drafted. Ministry of Agriculture Feed Quality Supervision and Testing Center (Xi'an), Changchun Dacheng Industrial Group.
The main drafters of this standard. Zhao Cai will, Chen Li, Jia Qing, Li Huiling, Yaotian Ling, Liang Hongrui, Yang Hanqing, West Feng Hui, Liming Tao.
Feed Grade L- Threonine
1 Scope
This standard specifies the technical requirements for feed grade L- threonine products, test methods, inspection rules, labeling, packaging, transportation, storage and security
Shelf.
This standard applies to starch, sugar quality as the main raw material, fermentation, extraction made of feed grade L- threonine.
Chemical name. L-2- amino-3-hydroxybutyric acid
Molecular formula. C4H9NO3
Molecular weight. 119.12 (according to 2006 international relative atomic mass)
Structure.
CHCH 3
OH
CH
NH
COOH
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
Preparation of GB/T 601 chemical reagent standard titration solution
Preparation of standard solution of GB/T 602 Determination of impurities in chemical reagents
GB/T 603 chemical reagent in test methods - Preparations with
Determination of moisture and other volatile matter content GB/T 6435 feed
Determination of GB/T 6438 of crude ash
GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-1992, neq ISO 3696. 1987)
GB 10648 feed label
GB 13078 standard feed hygiene
Determination of GB/T 13079 of total arsenic in feed
Atomic GB/T 13080 feed of lead absorption spectrometry
GB/T 14699.1 feed samples
People's Republic of China Pharmacopoeia 2005 edition two
3 Technical requirements
3.1 Appearance and Traits
This product should be white to light brown crystal or crystalline powder, slightly sweet taste. Soluble in water, insoluble in alcohol, ether and chloroform.
Optical activity.
3.2 Technical Specifications
Shall comply with the provisions in Table 1.
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