US$259.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB 28143-2011: [GB/T 28143-2011] Imidacloprid emulsifiable concentrates
Status: Valid
| Standard ID | USD | BUY PDF | Lead-Days | Standard Title (Description) | Status |
| GB 28143-2011 | 259 |
Add to Cart
|
3 days
|
[GB/T 28143-2011] Imidacloprid emulsifiable concentrates
| Valid |
Basic data
Standard ID: GB 28143-2011 (GB28143-2011)
Description (Translated English): [GB/T 28143-2011] Imidacloprid emulsifiable concentrates
Sector / Industry: National Standard
Classification of Chinese Standard: G25
Classification of International Standard: 65.100.10
Word Count Estimation: 10,153
Date of Issue: 2011-12-30
Date of Implementation: 2012-04-15
Quoted Standard: GB/T 1600; GB/T 1601; GB/T 1603; GB/T 1604; GB/T 1605-2001; GB 4838; GB/T 6682-2008; GB/T 8170-2008; GB/T 19136; GB/T 19137
Regulation (derived from): Announcement of Newly Approved National Standards No. 23 of 2011
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 imidacloprid EC requirements, test methods and marking, labeling, packaging, storage and warranty. This standard applies to imidacloprid and emulsifier dissolved in a suitable solvent mixture of the imidacloprid EC.
GB 28143-2011: [GB/T 28143-2011] Imidacloprid emulsifiable concentrates
---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.
Imidacloprid emulsifiable concentrates
ICS 65.100.10
G25
National Standards of People's Republic of China
Imidacloprid EC
Issued on. 2011-12-30
2012-04-15 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 is mandatory, the rest are recommended.
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
Please note that some content of this document may involve patents, the issuing authority of this document does not assume responsibility for the identification of these patents.
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. Jiangsu Suke Sheng Group Co., Ltd., Shanghai Yue Chemical Co., Ltd., Jiangsu Changqing Agrochemical Co.
Secretary, Zhejiang Hisun Chemical Co., Ltd., Qingdao Hailier Pharmaceutical Company Limited.
The main drafters of this standard. Hou Chunqing, Zan Yan Kun, WANG Chun-ling, Yu Cheung Fat, Jerry Hong, Wang Tiansheng, Lixue Chen.
Imidacloprid EC
1 Scope
This standard specifies the imidacloprid EC requirements, test methods and marking, labeling, packaging, storage and warranty.
This standard applies to the imidacloprid and preparation of the emulsifier is dissolved in a suitable solvent imidacloprid EC.
Note. Other name, structural formula and basic physicochemical parameters of imidacloprid in Appendix A.
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 1600 Determination of Water Pesticides
Determination of GB/T 1601 Pesticides pH value
GB/T 1603 Determination of emulsion stability of pesticide
GB/T 1604 Goods pesticide regulations for acceptance
GB/T 1605-2001 Sampling Method commercial pesticides
GB 4838 EC pesticide packaging
GB/T 6682-2008 analytical laboratory use specifications and test methods (ISO 3696. 1987, MOD)
GB/T 8170-2008 revised value represents about rules and limit values and judgment
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 imidacloprid made of a stable homogeneous liquid, free from visible suspended matter and sediment.
3.2 Technical Specifications
Imidacloprid EC shall comply with the requirements of Table 1.
Table 1 imidacloprid EC Control Project Index
project
index
5% 10% 20%
Imidacloprid mass fraction /% 1.0 to 1.0 20.0 10.0 5.0 0.5-0.5 1.2-1.2
Moisture /% ≤ 0.5
pH range of 5.0 to 8.0
Emulsion stability (diluted 200 times) Qualified
Table 1 (continued)
project
index
5% 10% 20%
Low temperature stability a qualified
Thermal storage stability of a qualified
Low temperature stability test, thermal storage stability test was measured at least once every three months during a normal production.
Test Method 4
Safety Tips. Use of this standard shall have practical experience of laboratory personnel work. This standard does not point out all of the safety issues. Make
With those who have the responsibility to take appropriate safety and health practices and to ensure compliance with the relevant national regulations.
4.1 General provisions
This standard reagents and water in the absence of other requirements specified, refers to three analytical reagent and GB/T 6682-2008 specified in
water. Test results determined in accordance with GB/T 8170-2008 4.3.3 Rounding the value comparison method.
4.2 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 200mL.
4.3 Identification Test
Liquid chromatography --- The identification test can be carried out simultaneously with the determination of the mass fraction of imidacloprid. Under the same chromatographic operating conditions, the test
The retention time of the sample solution and the standard solution in a chromatographic peak retention time peaks imidacloprid, the relative difference should be less than 1.5%.
4.4 Determination of the mass fraction of imidacloprid
4.4.1 Method summary
Sample dissolved in mobile phase, methanol and water as the mobile phase, use as filler to C18 stainless steel column and UV detector at a wavelength
260nm, the sample of imidacloprid reverse phase HPLC separation and determination of external standard.
4.4.2 Reagents and solutions
Methanol. HPLC grade;
Water. The new secondary steam distilled water;
Imidacloprid standard. a known mass fraction w≥99.0%.
4.4.3 Instruments
High performance liquid chromatography. a variable wavelength UV detector;
Chromatographic data processor or chromatography workstation;
Column. 250mm × 4.6mm (id) stainless steel column, built C18,5μm filler (or with equivalent effect column);
Filter. filter pore size of about 0.45μm;
Micro injector. 50μL;
Quantitative sample line. 5μL;
Ultrasonic cleaner.
4.4.4 HPLC operating conditions
Mobile phase. Ψ (methanol. water) = 40.60, by membrane filtration, and degassing;
Flow rate. 0.8mL/min;
Column temperature. room temperature (temperature change should not exceed 2 ℃);
Detection wavelength. 260nm;
Injection volume. 5μL;
Retention time. about imidacloprid 6.0min.
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 imidacloprid EC HPLC is shown in Figure 1.
1 --- imidacloprid.
Figure 1 Figure imidacloprid EC by HPLC
4.4.5 measuring step
4.4.5.1 Preparation of standard solution
Weigh 0.1g (accurate to 0.0002g) imidacloprid standard in 100mL flask with methanol to volume, ultrasonic oscillation
5min make sample dissolution, cooled to room temperature and shake well. Using a pipette to take the above solution 5mL to 50mL volumetric flask, dilute with mobile phase
Release to the mark.
4.4.5.2 Preparation of sample solution
Weigh containing imidacloprid 0.1g (accurate to 0.0002g) sample in 100mL flask with methanol to the mark, the ultrasonic transducer
Dang 5min to dissolve the sample was cooled to room temperature and shake well. Using a pipette to take the above solution 5mL to 50mL volumetric flask, with the mobile phase
Dilute to the mark.
4.4.5.3 Determination
Under these operating conditions, after the instrument is stable, continuous injection of several doses of the standard solution until the two adjacent needles Imidacloprid peak area relative change
After less than 1.2%, according to the solution, the sample solution, the sample solution and standard sequence of the standard solution was measured.
4.4.5.4 Calculation
The two needle sample solution and measured before and after the two doses of the standard sample solution imidacloprid peak areas are averaged. Imidacloprid sample
The mass fraction according to equation (1).
w1 = A2
· M1 · w
A1 · m2
(1)
Where.
w1 --- sample imidacloprid mass fraction, expressed as a percentage;
A2 --- sample solution, imidacloprid mean peak area;
m1 --- imidacloprid standard mass in grams (g);
w --- imidacloprid standard mass fraction, expressed as a percentage;
A1 --- the standard solution, the average peak area imidacloprid;
m2 --- sample mass, in grams (g).
4.4.6 allowable difference
Imidacloprid poor quality score of two parallel determination results shall not be greater than 0.5%, the arithmetic mean value as a measurement result.
4.5 Determination of Moisture
According to GB/T 1600 the "Karl Fischer method".
Determination of 4.6 pH value
According to GB/T 1601 carried out.
4.7 Emulsion stability
Standard hard water sample was diluted 200-fold, according to GB/T 1603 test, no oil slick measuring cylinder (cream), and precipitation of heavy oil
qualified.
4.8 Low temperature stability test
According to GB/T 19137 in "homogeneous emulsion and liquid preparations" to. Precipitate no more than 0.3mL qualified.
4.9 Thermal storage stability test
According to GB/T 19136 in "liquid formulation" to. After the heat storage imidacloprid content should not be less than 97% before storage.
4.10 Product inspection and acceptance
Shall comply with GB/T 1604's.
5 marking, labeling, packaging, storage, security and guarantee period
5.1 marking, labeling, packaging
Imidacloprid EC application glass or plastic PET bottle packaging, bottle net content of 500g or 1000g; carton or net weight 10kg
12kg. Also available upon request or order agreement other forms of packaging, subject to the provisions of GB 4838.
5.2 Storage
Imidacloprid EC package should be stored in well-ventilated, dry coffers. Storage and transportation, to prevent moisture and sunlight, no food, seed, feed
Material mix, avoid contact with skin, eyes, mouth and nose to prevent inhalation.
5.3 Security
This product is a low toxicity formulation. It can penetrate through the skin. When using this product to avoid contact with skin, use soap and water after application.
Poisoning should immediately sent to hospital symptomatic treatment.
5.4 Warranty Period
Under the specified storage conditions, imidacloprid EC guarantee period, starting from the date of manufacture of two years.
Appendix A
(Informative)
Other names for imidacloprid, structural formula and basic physicochemical parameters
Other name, structural formula and basic physicochemical parameters of the active ingredient imidacloprid product are as follows.
ISO common name. Imidacloprid
CAS Registry Number. 138261-41-3
CIPAC Numeric Code. 582
Chemical name. 1- (6-chloro-3-pyridylmethyl) -N- nitromethylene-imidazol-2-yl-amine
Structure.
Empirical formula. C9H10ClN5O2
Molecular Weight. 255.7
Biological activity. Insecticidal
Melting point. 144 ℃
Vapor pressure (20 ℃). 4 × 10-7mPa
Solubility (20 ℃, g/L). water 0.61, 0.68 toluene, methylene chloride 55, 1.2 isopropanol, n-hexane is less than 0.1
Stability. pH value of 5 to 11 stable, easy hydrolysis.
......
Tips & Frequently Asked Questions:
Question 1: How long will the true-PDF of GB 28143-2011_English be delivered?
Answer: Upon your order, we will start to translate GB 28143-2011_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 28143-2011_English with my colleagues?
Answer: Yes. The purchased PDF of GB 28143-2011_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 Sales@ChineseStandard.net. 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.
