SN/T 1737.1-2006 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 1737.1-2006	RFQ	ASK	5 days	Determination of herbicide residues. Part 1: Multiple acetanilide herbicide residues in cereals and oil seeds determined by gas chromatography-mass spectrometry method	Obsolete

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Basic data

Standard ID: SN/T 1737.1-2006 (SN/T1737.1-2006)
Description (Translated English): Determination of herbicide residues. Part 1: Multiple acetanilide herbicide residues in cereals and oil seeds determined by gas chromatography-mass spectrometry method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: B17
Classification of International Standard: 65.100
Word Count Estimation: 27,277
Date of Issue: 2006-01-26
Date of Implementation: 2006-08-16
Regulation (derived from): Industry Standard Notice 2006 No. 4 (total of 76)
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the import and export of grains and oilseeds in the amide herbicide residues in sampling, sample preparation and gas chromatography mass spectrometry. This standard applies to import rice soybean herbicide residues test.

SN/T 1737.1-2006: Determination of herbicide residues. Part 1: Multiple acetanilide herbicide residues in cereals and oil seeds determined by gas chromatography-mass spectrometry method

---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 herbicide residues. Part 1. Multiple acetanilide herbicide residues in cereals and oil seeds determined by gas chromatography-mass spectrometry method People's Republic of China Entry-Exit Inspection and Quarantine Industry Standard Herbicide residue detection method Part 1. Determination by gas chromatography tandem mass spectrometry Residues of amide herbicides in grain and oilseeds Released on.2006-01-26 Implementation of.2006-08-16 People's Republic The General Administration of Quality Supervision, Inspection and Quarantine issued

Foreword

The SN/T 1737 "Method for Testing Herbicide Residues" is divided into two parts. --- Part 1. Determination of amide herbicide residues in grains and oilseeds by gas chromatography tandem mass spectrometry; --- Part 2. Determination of multiple residues of diphenyl ether herbicides in soybeans and grains. This part is the first part of SN/T 1737. Appendix A, Appendix B and Appendix C of this part are informative annexes. This part is proposed and managed by the National Certification and Accreditation Administration. This section drafted by. Shenzhen Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China. The main drafters of this section. Xie Liqi, Lan Fang, Lin Li, Cai Yina, Wu Weidong. This section is the first industry standard for entry-exit inspection and quarantine. Herbicide residue detection method Part 1. Determination by gas chromatography tandem mass spectrometry Residues of amide herbicides in grain and oilseeds

1 Scope

This part of SN/T 1737 specifies sampling, sample preparation and gas chromatography for the detection of amide herbicide residues in grain and oilseeds. Mass spectrometry method. This section applies to the import and export of rice, soybean amide herbicide residue test.

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. The 犪 value takes an integer, and the fractional part is forward to the integer. 2.3 Sampling tools 2.3.1 Metal single-tube sampler. full length 55cm (including handle), diameter 1.5cm~2.0cm, groove length should exceed the diagonal length of the bag half. 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 3 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 about 45°, and drag more than 1m to make the bag All the goods are dumped. Check that the quality of the bag and the bag are even. After confirming the situation, use the sampling shovel to randomly take samples from various parts and immediately 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. ......

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