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GB/T 24534.3-2009: Cereals and pulses -- Determination of hidden insect infestation -- Part 3: Reference method
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Cereals and pulses -- Determination of hidden insect infestation -- Part 3: Reference method
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GB/T 24534.3-2009
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Basic data | Standard ID | GB/T 24534.3-2009 (GB/T24534.3-2009) | | Description (Translated English) | Cereals and pulses -- Determination of hidden insect infestation -- Part 3: Reference method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | B20 | | Classification of International Standard | 67.060 | | Word Count Estimation | 7,788 | | Date of Issue | 2009-10-30 | | Date of Implementation | 2009-12-01 | | Quoted Standard | GB/T 21305; GB/T 22183; GB/T 24534.1; GB/T 24534.2 | | Adopted Standard | ISO 6639-3-1986, IDT | | Regulation (derived from) | National Standard Approval Announcement 2009 No.12 (Total No.152) | | 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 determination of the properties and the number of grains and legumes hidden insect baseline methods. Its purpose is to calculate the normal feeding in cereals and legumes, every kind of insect development, all individual states of the amount of each insect. Since this method until all the insects to complete their development cycle and emergence as adults before they can be detected, so slow. This method can be reliably used typically in the food grain feeding species, but not for those occasional cracks in the food grain hole feeding species. When insects of any deal that may make these insects are crashing or leave food grains make even death from food grains, resulting in underestimation of the number of these types. | GB/T 24534.3-2009: Cereals and pulses -- Determination of hidden insect infestation -- Part 3: Reference method
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. Cereals and pulses Determination of hidden insect infestation Part 3. Reference method
ICS 67.060
B20
National Standards of People's Republic of China
GB/T 24534.3-2009/ISO 6639-3. 1986
Determination of cereals and pulses hidden insect infestation
Part 3. Reference method
(ISO 6639-3. 1986, IDT)
Posted 2009-10-30
2009-12-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 24534 "cereals and pulses - Determination of hidden insect infestation" includes the following four parts.
--- Part 1. General;
--- Part 2. Sampling;
--- Part 3. Reference method;
--- Part 4. Rapid methods.
This section GB/T 24534 Part 3.
This section identical with ISO 6639-3. 1986 "Determination of cereals and pulses hidden insect infestation - Part 3. Reference method."
For ease of use, this section made the following editorial changes.
a) with GB/T 21305 instead of ISO 712;
b) with GB/T 22183 instead of ISO 5223;
c) In Table 1 insect species added to the Chinese name;
d) Remove the ISO 6639-3. 1986 Foreword;
e) Remove the ISO 6639-3. "Introduction" section 1986;
f) Add the GB/T 24534.1 and GB/T 24534.2 to "normative references" on.
Appendix A of this part is a normative appendix.
This part is proposed by the National Food Authority.
This part of the National Grain and Oil Standardization Technical Committee centralized.
This section drafted by. National Food Reserve Chengdu Grain Storage Research Institute.
The main drafters of this section. Yan Xiaoping, Zhou Hao, Xu Shengwei, Lan Sheng Bin, Tan Chang first, Liwan Wu, Ding Jianwu, Hou Xingwei, Guodao Lin.
GB/T 24534.3-2009/ISO 6639-3. 1986
Determination of cereals and pulses hidden insect infestation
Part 3. Reference method
1 Scope
This section GB/T 24534 specifies the determination of cereals and legumes property and amount of hidden insect baseline methodology. Its purpose is
Calculate the normal feeding within grains and legumes, and development of each insect, each of the number of individuals of all instars.
Since this method is to wait until all the insects complete their reproductive cycle and emergence as adults before they can be detected, so slow. This approach
Reliably used is usually in the food grain feeding species, but not for those occasional cracks in food grain hole feeding species. Any of insects feed
When line processing, these insects are likely to make it crashing or leave food grains and even death from food grains, resulting in underestimation of the number of these species.
2 Normative references
The following documents contain provisions which, through GB/T 24534 in this part of the reference in terms of this section. For dated reference documents
Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section
Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this
section.
GB/T 21305 Cereals and cereal products - Determination of moisture conventional method (GB/T 21305-2007, ISO 712.1998, IDT)
GB/T 22183 Grain Inspection sieve (GB/T 22183-2008, ISO 5223.1995, IDT)
24534.1 cereals and pulses - Determination of hidden insect infestation GB/T Part 1. General (GB/T 24534.1-2009,
ISO 6639-1. 1986, IDT)
24534.2 cereals and pulses - Determination of hidden insect infestation GB/T Part 2. Sampling (GB/T 24534.2-2009,
ISO 6639-2. 1986, MOD)
3 Terms and Definitions
Terms and definitions GB/T 24534.1 apply to this section as defined in GB/T 24534 of.
Principle 4
The sample was placed in a controlled temperature, relative humidity, the sample insects most likely to develop to the adult stage. In short
Gap period, the adult food grains appear in the detection, classification, counting the number to get the original test sample insects.
5 device
Commonly used laboratory equipment, especially the following.
5.1 sealed container. for the determination of moisture before storing samples.
5.2 Balance. a sense of the amount of 1g, minimum weight of 300g.
5.3 transparent container. glass or plastic container is preferably, 300g to accommodate the sample, and the sample thickness not exceeding 50mm.
5.4 closure. Allows gas exchange, but it can prevent insects and mites out of the container (5.3).
NOTE. The filter can be equipped with paraffin edge.
5.5 sieve. shall comply with GB/T 22183, to be able to retain the aperture and let the food grain by insects.
Note. For cereals, should adopt 2mm ~ 2.5mm aperture sieve; for beans, you need to use a larger aperture sieve to remove Bruchidae (Bruchidae)
insect. Sieve preferably with deep chassis for insects collected under the sieve.
GB/T 24534.3-2009/ISO 6639-3. 1986
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