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GB/T 31737-2015: Testing method of pourability for pesticides
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Testing method of pourability for pesticides
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GB/T 31737-2015
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Basic data | Standard ID | GB/T 31737-2015 (GB/T31737-2015) | | Description (Translated English) | Testing method of pourability for pesticides | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G23 | | Classification of International Standard | 65.100 | | Word Count Estimation | 5,560 | | Date of Issue | 2015-07-03 | | Date of Implementation | 2015-11-02 | | Quoted Standard | GB/T 6682-2008 | | Adopted Standard | CIPAC MT 148, NEQ | | Regulation (derived from) | National Standard Announcement 2015 No.22 | | 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 method for the determination of dumping pesticides. This Standard applies to suspensions, capsule suspensions, oil suspensions, emulsions and water emulsion suspension pesticide determination of dumping. | GB/T 31737-2015: Testing method of pourability for pesticides---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.
Testing method of pourability for pesticides
ICS 65.100
G23
National Standards of People's Republic of China
Determination of the dumping of pesticides
Issued on. 2015-07-03
2015-11-02 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.
The standard reference method using redrafted International Partnership Committee analyzed pesticide CIPACMT148 (including MT148.1) "suspension
Pour sex "(Pourabilityofsuspensionconcentrates) method, and set up on an experimental basis.
This standard and CIPACMT148 "suspension of dumping" (Pourabilityofsuspensionconcentrates) of the main technical
Differences are as follows.
--- Standard cylinder different scale. CIPACMT148 not specified at 80% of the total volume of the graduated line. This standard specifies the total volume
At 80% (near the plug) graduated line, more convenient operation.
--- Different standing temperatures. CIPACMT148 not clearly defined standing temperatures. This standard specifies the room temperature (the temperature according to the specific
Actual needs) was allowed to stand.
--- Different cylinder inverted mode. CIPACMT148 not indicated to the bottom of the cylinder as the center or in the middle of the center cylinder. this
Standard cylinder reversed way to the middle of the center cylinder.
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee on Pesticides (SAC/TC133) centralized.
This standard is drafted by. Shenyang Chemical Research Institute Co., Ltd.
Participated in the drafting of this standard. Anhui Fengle Agrochemical Co., Ltd., Jiangsu Province hormone Institute Co., Ltd., Suzhou Jia-hui of
Industry Co., Ltd., Yellow River Delta, Beijing Bo Institute of Chemical Industry Co., Ltd. Jingmei Chemical Industries, Ltd. Hengshui.
The main drafters of this standard. Li Dong, Hong Xing, Zhou Kanglun, Fan Lei, Cao Yuan, Zhang Jianlin, LI.
Determination of the dumping of pesticides
1 Scope
This standard specifies the method for the determination of dumping pesticides.
This standard applies to suspensions, capsule suspensions, oil suspensions, emulsions and water emulsion suspension pesticide determination of dumping.
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.
GB/T 6682-2008 analytical laboratory use specifications and test methods (ISO 3696. 1987, MOD)
Test Method 3
3.1 Method summary
A predetermined amount of the sample was placed in a standard cylinder in a fixed time, then in accordance with the requirements of a certain amount measured after pouring cylinder of residues and the use of
Volume measuring cylinder residue washed with water.
3.2 Reagents and solutions
Water. Distilled water, in line with GB/T 6682-2008 requirements.
3.3 Instrument
With standard ground stopper (B34) cylinder. cylinder height 39cm (bottom to plug the bottom of the inner cylinder), an inner diameter of 5cm, 80% of the total volume
(Near the plug) has a tick.
Electronic balance. a sense of the amount of 0.1g, loading of 2kg.
Stopwatch.
3.4 Procedure
Determination of residue after dumping 3.4.1
He said measuring plug cylinder quality (accurate to 0.1g); the sample was added to the mark at 80% of the total volume of the cylinder, stoppered, and then weighed (fine
Indeed to 0.1g). At room temperature (the temperature can be specifically determined according to actual needs) was allowed to stand for 24h, the first cylinder upright position by the rotation of 135 °, inclination
Pour 60s, then invert 60s. Re-plug cylinder of said measuring quality (accurate to 0.1g). After the mass fraction indicates that the sample of the residual dumping
Was, according to equation (1).
w1 =
m2-m0
m1-m0 ×
100% (1)
Where.
After w1 --- pouring the residue, expressed as a percentage;
m2 --- After pouring the residue with a total mass of the cylinder plug mass in grams (g);
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