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GB 22169-2008: [GB/T 22169-2008] Fomesafen aqueous solution
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[GB/T 22169-2008] Fomesafen aqueous solution
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GB 22169-2008
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Basic data | Standard ID | GB 22169-2008 (GB22169-2008) | | Description (Translated English) | [GB/T 22169-2008] Fomesafen aqueous solution | | Sector / Industry | National Standard | | Classification of Chinese Standard | G25 | | Classification of International Standard | 65.100.20 | | Word Count Estimation | 8,876 | | Date of Issue | 2008-07-11 | | Date of Implementation | 2009-01-01 | | Quoted Standard | GB/T 1601; GB/T 1604; GB/T 1605-2001; GB 3796; GB/T 4472; GB/T 19136; GB/T 19137 | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 12 of 2008 (No. 125 overall) | | 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 Chinese standard specifies the Fomesafen agent requirements, test methods and marking, labeling, packaging, storage and transportation. This standard applies to the original drug Fomesafen suitable additives and water, and the composition of fomesafen agent. | GB 22169-2008: [GB/T 22169-2008] Fomesafen aqueous solution---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.
Fomesafen aqueous solution
ICS 65.100.20
G25
National Standards of People's Republic of China
Fomesafen agent
Posted 2008-07-11
2009-01-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
The standard Chapter 3, Chapter 5 are mandatory, the rest are recommended.
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee on Pesticides (CSBTS/T C133) centralized.
This standard is drafted by. Shenyang Chemical Research Institute.
Participated in the drafting of this standard. Dalian Songliao Chemical Co., Ltd., Jiangsu Changqing Agrochemical Co., Ltd., Dalian RAJ Pesticide shares have
Limited.
The main drafters of this standard. High Scenic, Zan Yan Kun, Miao innovation at sea level, Wang Dachun, Wu Tiejun.
The standard commission Secretariat of National Pesticide Standardisation Technical Committee responsible for the interpretation.
Fomesafen agent
Other name, structural formula and basic physicochemical parameters of the active ingredients of the product fomesafen as follows.
ISO common name. fomesafen
Chemical name. 2-chloro-4-trifluoromethylphenyl 3'-methanesulfonyl-carbamoyl-4'-nitrophenyl ether.
Structure.
Empirical formula. C15H10ClF3N2O6S
Molecular Weight. 438.8 (according to 2005 international relative atomic mass)
Biological activity. weeding
Melting point. 220 ℃ ~ 221 ℃
Vapor pressure (50 ℃). 0.1mPa
Solubility (20 ℃). water 0.05g/L, acetone 300g/L, cyclohexanone 150g/L, methylene chloride 10g/L, hexane
0.5g/L, xylene 1.9g/L
Stability. stable at 50 ℃ for 6 months or more, light unstable and difficult to hydrolysis under acidic or basic conditions
1 Scope
This standard specifies the fomesafen agent requirements, test methods and marking, labeling, packaging, storage and transportation.
This standard applies to the original drug fomesafen fomesafen agent and water and a suitable additive composition.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
Determination of GB/T 1601 Pesticides pH value
GB/T 1604 Goods pesticide regulations for acceptance
GB/T 1605-2001 Sampling Method commercial pesticides
GB 3796 pesticide packaging General
GB/T 4472 chemical product density, relative density measurement General
GB/T 19136 Determination of Pesticide Thermal storage stability
GB/T 19137 Pesticide cryogenic stability Determination
3 Requirements
3.1 Composition and appearance
This product should be compliant fomesafen original drug is made, the appearance of a homogeneous liquid, no suspended solids and sediment.
3.2 Technical Specifications
Fomesafen agent shall comply with the requirements of Table 1.
Table 1 fomesafen agent control program indicators
project
index
250g/L 25%
Fomesafen mass fraction a /%
Or concentration (20 ℃) / (g/L)
22.0 + 1.3-1.3
+ 15-15 250
25.0 + 1.5-1.5
Water insoluble /% ≤ 0.3
pH range of 6.0 to 9.0
Dilution stability (20 times) Qualified
Low temperature stability Qualified b
Thermal storage stability b qualified
When a dispute arises, to fomesafen mass fraction of arbitration.
B when normal production, low-temperature storage stability and thermal stability test at least every three months, once measured.
Test Method 4
4.1 Sampling
According to GB/T 1605-2001 in "liquid formulations sampling" approach. Determining sample package using a random number table method; the final sample size
Not less than 250mL.
4.2 Identification Test
HPLC --- The identification test can be carried out simultaneously with the determination of the content of fomesafen. In the same chromatographic operating conditions
, The sample solution to a chromatographic retention time and standard solution fomesafen chromatographic retention time, the relative difference should
1.5% or less.
4.3 Determination of fomesafen mass fraction
4.3.1 Method summary
Sample was dissolved in methanol, methanol + water + phosphoric acid as the mobile phase, to use as filler HypersilODS stainless steel column and ultraviolet detection
Detector (230nm), the sample of fomesafen reverse phase high performance liquid chromatography, external standard.
4.3.2 Reagents and solutions
Methanol. HPLC grade;
Phosphoric acid;
Water. The new secondary steam distilled water;
Fomesafen Sample. Known fomesafen mass fraction ≥98.0%.
4.3.3 Instruments
High performance liquid chromatography. a variable wavelength UV detector;
Chromatographic data processor;
Column.200mm × 4.6mm (. I.d) stainless steel column, built HypersilODS, 5μm filler (or with equivalent effect color
The column);
Filter. filter pore size of about 0.45μm;
Micro injector. 50μL;
Quantitative sample line. 5μL;
Ultrasonic cleaner.
4.3.4 HPLC operating conditions
Mobile phase. [Psi] (methanol. water. phosphoric acid) = 600.400.0.2, filtered through a filter membrane and degassed;
Flow rate. 1.0mL/min;
Column temperature. room temperature (temperature change should not exceed 2 ℃);
Detection wavelength. 230nm;
Injection volume. 5μL;
Retention time. fomesafen 7.8min.
It said operating parameters are typical, according to the characteristics of different instruments, given operating parameters adjusted as appropriate, in order to obtain the best results.
Typical fomesafen agent HPLC is shown in Figure 1.
1 --- fomesafen.
1 fomesafen agent HPLC diagram of FIG.
4.3.5 measuring step
4.3.5.1 Preparation of standard solution
Weigh fomesafen standard 0.1g (accurate to 0.0002g), a 50mL volumetric flask, dissolved in methanol and diluted to the mark,
Shake well. Pipette accurately pipette 5mL above solution was placed in another 50mL volumetric flask, diluted with methanol to the mark.
4.3.5.2 Preparation of sample solution
Weigh fluorine fomesafen 0.1g (accurate to 0.0002g) sample, placed in 50mL volumetric flask, dilute to the mark with methanol, shake
uniform. Pipette accurately pipette 5mL above solution was placed in another 50mL volumetric flask, diluted with methanol to the mark.
4.3.5.3 Determination
Under these operating conditions, after the instrument is stable, continuous injection of several doses of the standard solution until the two adjacent needles fomesafen relative peak area
After the change is less than 1.0%, according to the solution, the sample solution, the sample solution and standard sequence of the standard solution was measured.
4.3.6 Calculation
The two needle sample solution measured before and after the peak area of the sample and two doses of the standard solution of fomesafen were averaged. Specimen
(1) Calculation fomesafen mass fraction of 1 (%) according to the formula; (2) to calculate the concentration of ρ1 (g/L) by the formula.
1 = A2
(1)
ρ1 =
10 (2)
Where.
A1 --- the standard solution, the average fomesafen peak area;
A2 --- sample solution, the average fomesafen peak area;
--- Standard samples fomesafen mass fraction, expressed as a percentage;
Density ρ --- 20 ℃ when the sample in grams per milliliter (g/mL) (according to GB/T 4472 of "density meter method" Determination).
4.3.7 allowable difference
Fomesafen concentration, poor concentration measurement results of two parallel, should not exceed 0.8%, respectively, 8g/L, whichever is the arithmetic
Mean as a measurement result.
4.4 Determination of insoluble matter
4.4.1 Method summary
Samples dissolved in water, all insolubles were filtered off, dried weighed.
4.4.2 Instruments
Weighing bottle;
Glass sand core crucible. 3 #;
Oven. 105 ℃ ± 2 ℃.
4.4.3 measuring step
In an oven, the glass sand core crucible and dried to constant weight (accurate to 0.0002g), a sample was weighed 20g (accurate to 0.01g), placed
100mL beaker, rinsed with 200mL of water transferred into a measuring cylinder, stoppered, shaken violently, so that all dissolved solubles. The solution
After the crucible filtration, washed with distilled water residue in the crucible, each with 25mL, washed three times total. Setting the crucible and the residue was oven at 105 ℃
Dried to constant weight (accurate to 0.0002g), then cool to room temperature, and weighed.
The mass fraction of water-insoluble 2 (%) according to equation (3) Calculated.
(3)
Where.
According to GB/T 1601 carried out.
4.6 Dilution stability test
4.6.1 Reagents and Instruments
Standard hard water. ρ (Mg
2 ++ Ca2 +) = 342mg/L;
Cylinder. 100mL;
Water bath. 30 ℃ ± 2 ℃;
Pipette. 5mL.
4.6.2 Test procedure
With pipette 5mL sample, placed in 100mL measuring cylinder and diluted to the mark with standard hard water, and mix. Add this cylinder thermostat
Water bath, allowed to stand for 1h. As dilution uniform, no precipitation was qualified.
4.7 Low temperature stability test
According to GB/T 19137 in "homogeneous emulsion and liquid preparations" to. Volume precipitated solid or oil does not exceed 0.3mL qualified.
4.8 Thermal storage stability test
According to GB/T 19136 in "liquid formulation" to. After the thermal storage, fomesafen content should not be less than 95% of the heat storage before; dilution stable
Qualitative should still meet the requirements of 3.2.
4.9 product testing and acceptance
Shall comply with GB/T 1604's. Limit numerical processing using rounding value comparison method.
5 marking, labeling, packaging, storage and transportation
5.1 fomesafen agent signs, labels, packaging, should meet the requirements of GB 3796.
5.2 fomesafen agent bottle polyester or polyethylene bottles, bottle net content of 250mL, 500mL, packed in cardboard boxes, tile
Leng cardboard box or Plastic boxes each containing a net content not exceeding 10kg. You can also order or agreement according to user requirements, the use of other forms of packages
Equipment, subject to the provisions of GB 3796.
5.3 fomesafen agent package should be stored in well-ventilated, dry coffers.
5.4 storage, prevent moisture and sunlight, no food, seed, feed mix, avoid contact with skin, eyes, mouth and nose to prevent inhalation.
5.5 Security. fomesafen low toxicity herbicides. The FDA should wear protective gloves, gas masks, wear clean protective clothing. After application
Should immediately wash with soap and water. When liquid such as skin and eye contact, use plenty of water. Rinsing time is not less than 15min, and
Your doctor; if swallowed, immediately induce vomiting.
5.6 Warranty. under the specified storage conditions, warranties of fomesafen agent, measured from the date of manufacture 2 years.
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