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SN/T 1017.9-2004: Determination of haloxyfop residues in cereals for import and export
Status: Obsolete
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 1017.9-2004 | English | 639 |
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Determination of haloxyfop residues in cereals for import and export
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SN/T 1017.9-2004
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Basic data | Standard ID | SN/T 1017.9-2004 (SN/T1017.9-2004) | | Description (Translated English) | Determination of haloxyfop residues in cereals for import and export | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | B22 | | Classification of International Standard | 67.060 | | Word Count Estimation | 16,192 | | Date of Issue | 2004-06-01 | | Date of Implementation | 2004-12-01 | | 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 cereals in fluazifop grass Ling residues B sample test, sample preparation and gas chromatographic method. This standard applies to import rice fluazifop B grass Ling residue test. | SN/T 1017.9-2004: Determination of haloxyfop residues in cereals 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.
Determination of haloxyfop residues in cereals for import and export
Book of the People's Republic of China Entry and Exit Inspection and Quarantine
Method for testing the residual amount of pyridoxine in import and export grain
Released on June.2004
Implementation of.2004-12-01
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 National Certification and Accreditation Administration.
This standard was drafted. Hunan Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China.
The main drafters of this standard. Zhang Ying, Huang Zhiqiang, Li Yongjun, Dai Hua.
This standard is the first industry standard for entry-exit inspection and quarantine.
Method for testing the residual amount of pyridoxine in import and export grain
1 Scope
This standard specifies the sampling, sample preparation and gas chromatographic determination methods for the determination of the residual amount of flufenacetin in the grain import and export.
This standard is applicable to the test of the residual amount of fluridine in imported and exported rice.
2 sampling and sample preparation
2.1 Inspection lot
Take no more than 4000 bags (200t) as an inspection lot.
Goods in the same inspection lot should have the same characteristics, such as. packaging, marking, origin, specifications and grades.
2.2 Number of samples
Calculate the number of sampling bags according to formula (1).
犪= 槡N (1)
In the formula.
N---the total number of bags;
犪---Number of sampling bags.
Note. The value of 犪 is an integer, and the fractional part is an integer to the forward position.
2.3 Sampling tools
2.3.1 Metal single tube sampler
The full length is 55cm (including the handle) and the diameter is 1.5cm~2.0cm. The length of the groove should exceed half of the diagonal length of the bag.
2.3.2 Sampling shovel.
2.3.3 Sample plate.
2.3.4 Sample tube (bag). can be sealed.
2.3.5 Sample cloth or suitable mats.
2.4 Sampling methods
2.4.1 Reverse packet sampling
Randomly extract 10% of the number of samples to be sampled from each part of the stack (not less than three bags per batch), and stitch all the seams of the bag.
Disassemble, lay flat on the sample cloth or other clean mats, hold the two corners of the bottom of the bag with both hands, lift the angle of about 45 °C, and drag it for more than 1 m.
All the goods in the bag are dumped. Check that the quality of the bag and the bag are even. After confirming the situation, use the sampling shovel to randomly sample the samples at each location.
Pour the sample into the sample container. The number of samples taken per bag should be basically the same.
2.4.2 Sampling in the bag
According to the 90% of the number of bags to be sampled according to 2.2, the upper, middle and lower layers around the stack are randomly drawn in a curved shape. Sampler
(2.3.1) The tube groove is facing downward, inserted into the bag from the corner of each bag diagonally, then the tube groove is turned upwards, the sampler is taken out, and the sample is immediately taken.
Pour into a sample container. The number of samples taken per bag should be basically the same as 2.4.1.
The total amount of each batch of samples should be no less than 4kg.
2.4.3 Large sample reduction
Collect all the samples in the concentrated bag and the inverted bag sample, pour it on the sample cloth, and use the sample plate to divide the sample by the quarter method to not less than 2kg.
Mark the mark after the seal and send it to the laboratory in time.
2.5 Sample preparation
The sample was reduced to 1 kg by quartering, all ground and passed through a 40 mesh sieve, mixed, divided into two parts, and placed in a clean container.
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