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SN/T 1591-2005: Lnspection of 9 organic heterocyclic pesticides in tea for import and export
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 1591-2005 | English | 679 |
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Lnspection of 9 organic heterocyclic pesticides in tea for import and export
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SN/T 1591-2005
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Basic data | Standard ID | SN/T 1591-2005 (SN/T1591-2005) | | Description (Translated English) | Lnspection of 9 organic heterocyclic pesticides in tea for import and export | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | X55 | | Classification of International Standard | 67.140 | | Word Count Estimation | 17,123 | | Date of Issue | 2005-05-20 | | Date of Implementation | 2005-12-01 | | Regulation (derived from) | 2005 Bulletin No. 8 industry standard | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China | | Summary | This standard specifies the import and export of tea in nine kinds of organic heterocyclic pesticides residues in sampling and sample preparation, measurement method, measurement floor and recoveries. This standard applies to export tea atrazine, ethylene bacteria Lee nuclear, procymidone, triflumizole, imazalil, buprofezin, propiconazole, fenarimol, Pyridaben residue test. | SN/T 1591-2005: Lnspection of 9 organic heterocyclic pesticides in tea for import and export---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.
Lnspection of 9 organic heterocyclic pesticides in tea for import and export
People's Republic of China Entry-Exit Inspection and Quarantine Industry Standard
9 kinds of organic heterocyclics in tea for import and export
Method for testing pesticide residues
Released on.2005-05-20
Implementation of.2005-12-01
People's Republic
The General Administration of Quality Supervision, Inspection and Quarantine issued
Foreword
Appendix A of this standard is an informative annex.
This standard is proposed and managed by the General Administration of Quality Supervision, Inspection and Quarantine.
This standard was drafted by the Hunan Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China.
The main drafters of this standard. Li Yongjun, Huang Zhiqiang, Dai Hua, Zhang Ying.
This standard is the first industry standard for entry-exit inspection and quarantine.
9 kinds of organic heterocyclics in tea for import and export
Method for testing pesticide residues
1 Scope
This standard stipulates the sampling and sample preparation, determination methods, and determination of the lower limit of 9 kinds of organic heterocyclic pesticide residues in imported and exported tea.
Recovery rate.
This standard applies to the extraction of atrazine, ethylene sclerotium, procymidone, fluconazole, imazalil, buprofezin, propiconazole, chloramphenicol
Examination of the residual amount of pyridine alcohol and hydrazine.
2 sampling and sample preparation
2.1 Inspection lot
With no more than 2,000 pieces as an inspection lot, the goods in the same inspection lot should have the same characteristics, such as packaging, marking, origin, specifications, etc.
Level and so on.
2.2 Number of samples
Table 1 The sampling quantity unit is a piece
Minimum number of samples in batch
1~5 1
6 to 50 2
51～500 11
501~1000 16
1001～1500 17
1501～2000 18
2.3 Sampling tools
a) Sampling spoon.
b) Sample cloth. plastic cloth.
c) Sample plate.
d) Sample holder. tube or plastic bag, sealable.
2.4 Sampling methods
The sample boxes are randomly selected from different parts of the goods piled up according to the number of samples specified in 2.2, and opened one by one. Open the lid and put all the tea in the box
Pour into the plastic cloth, use a sampling spoon to extract tea samples in each part, the amount of each piece is about 500g, as the original sample. Mixing the total of the original sample
The amount is not less than 2kg. Mix all the original samples thoroughly, and use a quartering method (or use a sampler) to shrink out about 500g, and immediately fill in the clear
The clean and dry sample tube is sealed and marked, and sent to the laboratory in time.
2.5 Sample preparation
The retrieved samples were all ground to pass through a sieve having a pore size of 0.84 mm. Mix well, divide into two parts, and put them into a clean container.
For the sample. Seal and mark.
2.6 Sample storage
The sample was stored at -5 ° C or less in the dark. Samples should be protected from contamination or residue content during sampling and sample preparation operations.
The change.
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