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GB/T 25869-2010: Onions -- Guide to storage
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| GB/T 25869-2010 | English | 154 |
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Onions -- Guide to storage
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GB/T 25869-2010
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Basic data | Standard ID | GB/T 25869-2010 (GB/T25869-2010) | | Description (Translated English) | Onions -- Guide to storage | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | X08 | | Classification of International Standard | 67.040 | | Word Count Estimation | 8,851 | | Date of Issue | 1/10/2011 | | Date of Implementation | 6/1/2011 | | Quoted Standard | ISO 2169-1981 | | Adopted Standard | ISO 1673-1991, IDT | | Regulation (derived from) | Announcement of Newly Approved National Standards 2011 No. (No. 166 overall) 1 | | 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 onion (AlliumcepaLinnaeus) with or without the use of artificial refrigeration storage guidelines under the conditions, with the aim to make long-term storage and sales in the fresh state. Scope This standard applies in Appendix A. | GB/T 25869-2010: Onions -- Guide to storage---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.
Onions. Guide to storage
ICS 67.040
X08
National Standards of People's Republic of China
Onion Storage Guide
(ISO 1673.1991, IDT)
Issued on. 2011-01-10
2011-06-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard is identical with ISO 1673.1991 "Onion Storage Guide" (English version), its technical content and structure of the text with the ISO 1673.
1991 consensus.
For ease of use, this standard made the following editorial changes.
--- Deletion of the ISO 1673.1991 Foreword and Introduction;
--- Use the "standard" instead of "this International Standard";
--- For ease of use in our country, "5 other storage methods," the statement has been modified;
--- Punctuation were falsified.
This standard is proposed and managed by China General Chamber of Commerce.
This standard was drafted. Chinese Chamber of Commerce Business Standard Centre, China Vegetable Circulation Association, Renmin University of China School of Environment.
The main drafters of this standard. accounting level palace, Li Jianghua, Liu Zhenyu, Chen Song.
Onion Storage Guide
1 Scope
This standard gives the onion (AlliumcepaLinnaeus) with or without the use of artificial refrigeration storage guidelines under conditions intended to enable
Its long-term storage and sales in the fresh state.
Scope This standard applies in Appendix A.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
ISO 2169. 1981 and measuring the physical conditions are defined in the cold storage of fruits and vegetables
Harvesting and storage of pre-treatment 3
3.1 Varieties
You should choose the appropriate storage of onion varieties.
Note 1. Normally select late-maturing varieties of onion storage.
3.2 Harvest
Harvest should turn yellow in the 65% to 75% from green leaf, stalk lodging started, the leaves begin to wither, and onion wrapped in a clear skin
Conduct (shows onions in physiological dormant state).
Harvesting should avoid abrasions and other injuries, should be cut off the stems, the length of the stem should be dried at no more than 4cm (see 3.4).
3.3 Quality requirements
Onion response for quality testing.
Should choose a good quality onions, should be consistent with the same species, complete, no mechanical injury, skin dry, wrap intact, mature quality requirements.
There should be no foreign odors.
Should retain a certain length of the stem, may have 2 to 3 layers of the skin layer package, can also be no skin package. Too big, too small, or irregular shape
Fully mature onions are not suitable for storage.
Storage 3.4 Pretreatment
To avoid sprouting during storage onion, if not strictly required, you can use sprout inhibitor.
Onions before storage should be dried to remove moisture as well as the appearance of membranous scales, fibrous roots and stems disk moisture.
If you can not be natural drying, artificial drying methods may be appropriate. According to the degree of moisture placed in the flow of hot dry air
4d, up to 8d. Air temperature up to 30 ℃, relative humidity of 60% to 70%, per cubic meter of air flow through the flow of onion is
2m3/min ~ 25m3/min. Fresh air can be introduced from outside the repository, but also the storage gas mixture inside and outside the library, but two different types
Type air exchange rate of ventilation required different. Air storage library can also be easily repeated cycles, circulation flow rate of air per hour should be
40% to 50% of storage capacity.
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