|
US$259.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB 23548-2009: [GB/T 23548-2009] Thifensulfuron-methyl wettable powders
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB 23548-2009 | English | 259 |
Add to Cart
|
3 days [Need to translate]
|
[GB/T 23548-2009] Thifensulfuron-methyl wettable powders
| Valid |
GB 23548-2009
|
PDF similar to GB 23548-2009
Basic data | Standard ID | GB 23548-2009 (GB23548-2009) | | Description (Translated English) | [GB/T 23548-2009] Thifensulfuron-methyl wettable powders | | Sector / Industry | National Standard | | Classification of Chinese Standard | G25 | | Classification of International Standard | 65.100.20 | | Word Count Estimation | 10,180 | | Date of Issue | 2009-04-27 | | Date of Implementation | 2009-11-01 | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 5, 2009 (No. 145 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 WP thifensulfuron requirements, test methods and marking, labeling, packaging and storage. This standard applies to Thifensulfuron original drug with a suitable additives and fillers processed into Thifensulfuron WP. | GB 23548-2009: [GB/T 23548-2009] Thifensulfuron-methyl wettable powders---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.
Thifensulfuron-methyl wettable powders
ICS 65.100.20
G25
National Standards of People's Republic of China
Thifensulfuron WP
Posted 2009-04-27
2009-11-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard Chapters 3 and 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 (SAC/TC133) centralized.
This standard is drafted by. the Ministry of Agriculture.
Participated in the drafting of this standard. Anhui Fengle Agrochemical Co., Ltd., Jiangsu hormone Institute Co., Ltd. Jiangsu Rui Bangnong pharmaceutical companies.
The main drafters of this standard. Wu Jinlong, Chen Tiechun, Yu Rong, violin, Wang Guiying, Fan Lei, step Cummins.
Thifensulfuron WP
Other active ingredients of the product name, structural formula and basic physicochemical parameters thifensulfuron follows.
ISO common name. thifensulfuron-methyl
CIPAC digital code. 452
CA registration number. 79277-27-3
Chemical Name. 3- (4-methoxy-6-methyl-1,3,5-triazin-2-yl) -1- (2-methoxy-formyl thiophen-3-yl) - sulfonyl urea
Structure.
Empirical formula. C12H13N5O6S2
Molecular Weight. 387.4 (according to 2005 international relative atomic mass)
Biological activity. weeding
Melting point. 176 ℃ (TC 171 ℃)
Vapor pressure (25 ℃). 1.7 × 10-8Pa
Solubility (g/L, 25 ℃). water 0.223 (pH5), 2.240 (pH7), 8.830 (pH9); n-hexane < 0.1, o-xylene, 0.212,
3.3 ethyl acetate, methanol, 2.8, 7.7 acetonitrile, acetone, 10.3, 23.8 dichloromethane
Stability. neutral, weakly alkaline aqueous solution is stable, acidic hydrolysis in aqueous solution at accelerated DT504-6d (pH5)
1 Scope
This standard specifies thifensulfuron WP requirements, test methods and marking, labeling, packaging and storage.
This standard applies to processed from thifensulfuron original drug with suitable additives and fillers into thifensulfuron WP.
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.
GB/T 1600 Determination of Water Pesticides
GB/T 1601 Pesticides pH value measurement method
GB/T 1604 Goods pesticide regulations for acceptance
GB/T 1605-2001 Sampling Method commercial pesticides
GB 3796 pesticide packaging General
GB/T 5451 WP Pesticide wettability measurement method
GB/T 14825-2006 Method for determination of pesticide wettable powder suspension
GB/T 16150 pesticide powder, wettable powder fineness measurement method
GB/T 19136 Determination of Pesticide Thermal storage stability
3 Requirements
3.1 Composition and appearance
This product should be compliant thifensulfuron original drug with suitable additives and fillers processed into, loose powder should be uniform, there should be no lumps.
3.2 Technical Specifications
Thifensulfuron WP should meet the requirements of Table 1.
Table 1 thifensulfuron WP Control Project Index
Item Index
Thifensulfuron mass fraction /% 25.0 + 15.0 + 0.9-0.9 1.5-1.5
Thifensulfuron suspension rate /% ≥ 75
pH range of 6.0 to 9.0
Moisture /% ≤ 3.0
Wetting time/s ≤ 120
Fineness (through 45μm test sieve) /% ≥ 98
Thermal storage stability of a qualified
a thermal storage stability test, test at least once every 3 months.
Test Method 4
4.1 Sampling
Carried out according to GB/T 1605-2001 "solid preparation sampling" method. Random sampling to determine the sampling methods package, the final sample
The amount of not less than 300g.
4.2 Identification Test
HPLC --- The identification test with thifensulfuron determination simultaneously. Under the same chromatographic operating conditions, the test
One sample solution peak retention time compared with standard sample solution thifensulfuron chromatographic retention time, the relative difference should be 1.5%
Fewer.
When using the above method for identification of effective ingredients have questions, other effective methods can be used for identification.
4.3 thifensulfuron mass fraction determination
4.3.1 Method summary
Sample was dissolved in acetonitrile, methanol + water as the mobile phase, use as filler to C18 stainless steel column and UV detector (250nm), to
External standard method in a sample thifensulfuron reverse phase HPLC separation and determination.
4.3.2 Reagents and solutions
Methanol. HPLC grade;
Acetonitrile. HPLC grade;
Phosphoric acid. AR;
Water. The new secondary steam distilled water;
Thifensulfuron standard. a known mass fraction ≥98.0%.
4.3.3 Instruments
High performance liquid chromatography. a variable wavelength UV detector;
Chromatographic data processor or chromatography workstation;
Column. 250mm × 4.6mm (. I.d) stainless steel column, built ZORBAXSB-C18,5μm filler (or other equivalent effect
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. [Phi] (methanol. water) = 65.35 adjusted with phosphoric acid where water pH = 3, filtered through a filter membrane and degassed;
The mobile phase flow rate. 1.0mL/min;
Column temperature. 30 ℃;
Detection wavelength. 250nm;
Injection volume. 5.0μL;
Retention time. thifensulfuron about 4.0min.
It said operating parameters are typical, according to the characteristics of different instruments and columns for a given operating parameters adjusted as appropriate, in order to obtain the most
Good effect. Typical thifensulfuron WP HPLC is shown in Figure 1.
1 --- thifensulfuron.
Figure 1 thifensulfuron WP HPLC chromatogram
4.3.5 measuring step
4.3.5.1 Sample solution preparation
Weigh thifensulfuron standard 0.05g (accurate to 0.0002g), placed in 100mL volumetric flask, dissolved in acetonitrile and diluted to the mark,
Shake well.
4.3.5.2 Sample solution preparation
Weigh containing thifensulfuron 0.05g sample (accurate to 0.0002g), placed in 100mL volumetric flask, dissolved in acetonitrile and diluted to
Mark and shake. By membrane filtration and set aside.
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 thifensulfuron peak area becomes relatively
After of less than 1.5%, according to the solution, sample solution, sample solution, standard order of standard solution was measured.
4.3.6 Calculation
The two doses of the standard solution of two injections of the sample solution and measured before and after the sample solution thifensulfuron peak areas are averaged. Specimen
Thifensulfuron mass fraction of 1 (%) according to equation (1).
(1)
Where.
A1 --- around two doses of the standard average of thiophene metsulfuron peak area of thiophene solution;
Thiophene metsulfuron mean peak area of two needles in the sample solution thiophene A2 --- front and rear;
--- Standard samples thifensulfuron mass fraction, expressed as a percentage.
4.3.7 allowable difference
The difference between two parallel determination results shall not be greater than 0.5%, the arithmetic mean value as a measurement result.
4.4 Determination of the suspension rate
4.4.1 measuring step
According to GB/T 14825-2006 Method in a conducted. Said sample of about 1.0g (accurate to 0.0002g), will stay with 70mL acetonitrile
1/10 suspensions and the residue at the bottom of the cylinder is transferred to 100mL volumetric flask, thoroughly shaken, acetonitrile sonication, set the volume. press
4.3.5 Determination thifensulfuron quality, calculate the suspension rate.
4.4.2 allowable difference
The difference between two parallel determination results shall not be greater than 5% of the arithmetic mean as a measurement result.
4.5 Determination of Moisture
According to GB/T 1600 "on azeotropic distillation method".
According to GB/T 1601 carried out.
4.7 Determination of wetting time
According to GB/T 5451 carried out.
4.8 Determination of fineness
According to GB/T 16150 in the "wet sieve method".
4.9 Thermal storage stability test
19136 by method GB/T "powder formulation" will be completed testing thifensulfuron mass fraction and suspension rates within 24h after the heat storage
set. Thifensulfuron content should not be less than the reservoir before the mass fraction of 95% suspension rate should meet the standard requirements.
4.10 Product inspection and acceptance
Shall comply with GB/T 1604's. Treatment of extreme values using the rounding value comparison method.
5 marking, labeling, packaging, storage and transportation
5.1 thifensulfuron WP signs, labeling and packaging should comply with the relevant provisions of GB 3796.
5.2 thifensulfuron wettable powder with plastic composite bag, bag net capacity of 50g, external carton for packaging, each box of net content not exceeding
Over 10kg. According to customer requirements or orders protocol, using other forms of packaging, but to comply with the relevant provisions of GB 3796.
5.3 The package should be stored in 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. using the instructions on the package or container, in addition to eye-catching signs of toxicity, it should also toxic instructions, use precautions, in
Symptom of detoxification methods and first aid measures.
5.6 Warranty. under the specified storage conditions, quality of thifensulfuron WP warranty period, counting from the date of manufacture 2 years.
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB 23548-2009_English be delivered?Answer: Upon your order, we will start to translate GB 23548-2009_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB 23548-2009_English with my colleagues?Answer: Yes. The purchased PDF of GB 23548-2009_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.
|