GB 28131-2011 English PDF

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GB 28131-2011: [GB/T 28131-2011] Deltamethrin technical material
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB 28131-2011	259	Add to Cart	3 days	[GB/T 28131-2011] Deltamethrin technical material	Valid

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Basic data

Standard ID: GB 28131-2011 (GB28131-2011)
Description (Translated English): [GB/T 28131-2011] Deltamethrin technical material
Sector / Industry: National Standard
Classification of Chinese Standard: G25
Classification of International Standard: 65.100.10
Word Count Estimation: 10,148
Date of Issue: 2011-12-30
Date of Implementation: 2012-04-15
Quoted Standard: GB/T 1601; GB/T 1604; GB/T 1605-2001; GB 3796
Adopted Standard: FAO specifications 333/TC-2005, MOD
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 requirements for the original drug deltamethrin, test methods and marking, labeling, packaging, storage and acceptance period. This standard applies to deltamethrin and its impurities generated in the production of deltamethrin original drug.

GB 28131-2011: [GB/T 28131-2011] Deltamethrin technical material

---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.
Deltamethrin technical material ICS 65.100.10 G25 National Standards of People's Republic of China Deltamethrin original drug Published 2011-12-30 2012-04-15 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China issued

Foreword

This standard in Chapter 3, Section 5 is mandatory, the rest are recommended. This standard was drafted in accordance with rules GB/T 1.1-2009 given. This draft standard method using the reformed modified using FAO Specifications 333/TC (May2005) "deltamethrin original drug" (Deltamethrin Technical differences and the reasons are as follows. --- This standard increased the loss on drying and control of pH in the range of two indicators, technical indicators is more comprehensive, FAO specifications uncontrolled Made these two indicators. Please note that some of the content of this document may involve patents. The issuing authority of this document does not assume responsibility to identify these patents. The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Pesticide Standardization Technical Committee (SAC/TC133). This standard is drafted. Shenyang Chemical Research Institute Co., Ltd. Participated in the drafting of this standard. Yangzhou Agricultural Chemical Corporation. The main drafters. Meibao Gui, Xing Hong, Li Na, Liu Weirong. Deltamethrin original drug

1 Scope

This standard specifies the requirements of the original drug deltamethrin, Test Method for marking, labeling, packaging, storage, and acceptance period. This standard applies to impurities derived from the production of the composition and deltamethrin deltamethrin original drug. Note. The other name, structural formula and basic physicochemical parameters of deltamethrin see Appendix A.

2 Normative references

The following documents for the application of this document is essential. For dated references, only applies to the version dated paper Pieces. For undated references, the latest edition (including any amendments) applies to this document. Determination 1601 pH value pesticides GB/T GB/T 1604 pesticide regulations for acceptance of goods GB/T 1605-2001 sampling commercial pesticides GB 3796 pesticide packaging General 3.1 Appearance White crystal powder. 3.2 Technical Specifications Deltamethrin original drug should also meet the requirements of Table 1. Table 1 deltamethrin original drug control project indicators Item Index Deltamethrin content /% ≥ 98.5 Drying loss mass fraction /% ≤ 0.5 The pH range of 4.0 to 7.0 Test Method 4 4.1 Sampling Carried out in GB/T 1605-2001 of "original drug product sampling" approach. Determined by sampling a random number table method packages, the amount of the final sample Not less than 100g. 4.2 Identification Test HPLC --- This identification test can be carried out simultaneously with the determination of the mass fraction of deltamethrin. In the same chromatographic operating conditions , The sample solution of a retention time of peaks and the standard solution deltamethrin retention time, the relative difference should be less than 1.5%. Infrared spectroscopy --- deltamethrin standard sample and the infrared in the range of 4000cm-1 ~ 400cm-1 absorption spectrum should ignorance Significant differences. Deltamethrin standard infrared spectra of Figure 1. FIG 1 deltamethrin standard IR spectrum 4.3 Determination of the content of deltamethrin 4.3.1 Method summary Sample dissolved in mobile phase, isooctane dioxane as the mobile phase, used as a filler ZorbaxRX-Sil stainless steel column and purple Outer detector (254nm), deltamethrin sample of normal phase high performance liquid chromatography, external standard. 4.3.2 Reagents and solutions Iso-octane; Dioxane; Deltamethrin Sample. deltamethrin known mass fraction w≥99.0%. 4.3.3 Instruments HPLC. a variable wavelength UV detector; Chromatographic data processor; Column. 250mm × 4.6mm (id) stainless steel column, built ZorbaxRX-Sil, 5μm packing; Filter. membrane pore size of about 0.45 m; Microsyringe. 50μL; Quantitative sampling tube. 10μL; Ultrasonic cleaning. 4.3.4 HPLC operating conditions Mobile phase. [Psi] (isooctane. dioxane) = 90.10, by membrane filtration, and degassing; Flow rate. 1.0mL/min; Column temperature. room temperature; Detection wavelength. 254nm; Injection volume. 10μL; Retention time. deltamethrin about 5.4min. Are typical operating parameters of the above, according to the characteristics of different instruments, for a given operating parameters appropriately adjusted to obtain the best result. Deltamethrin typical normal phase HPLC TC shown in Figure 2. 1 --- deltamethrin. FIG normal phase high performance liquid chromatography of the original drug deltamethrin 2 4.3.5 Determination Step 4.3.5.1 Preparation of standard solution Sample Weigh 0.05 g of deltamethrin (accurate to 0.0002g), was placed in a 50mL volumetric flask, add the mobile phase is shaken to dissolve, stream The mobile phase was diluted to the mark. 4.3.5.2 Preparation of sample solution Weigh 0.05g of deltamethrin-containing sample (accurate to 0.0002g), was placed in a 50mL volumetric flask, add the mobile phase solvent shaken so Solution, dilute to the mark with the mobile phase, shake. 4.3.5.3 Determination Under the above operating conditions, after the instrument is stable, the number of consecutive doses of the standard solution is injected until the peak area of the adjacent two pins is relatively deltamethrin After less than 1.2% of, measured according to the standard solution, sample solution, the sample solution, the order of standard solution. 4.3.6 computing The two needle and the sample solution was measured before and after the two doses of the standard sample solution and peak areas were averaged deltamethrin. Sample Deltamethrin Permethrin mass fraction according to formula (1). w1 = A2 · M1 · w A1 · m2 (1) Where. W1 --- deltamethrin sample content, expressed in%; A2 --- sample solution deltamethrin average peak area; M1 --- deltamethrin standard mass in grams (G); W --- Sample deltamethrin deltamethrin content, expressed in%; A1 --- Sample average peak area was deltamethrin; --- M2 sample mass, in grams (g). 4.3.7 allows poor The difference between the results of two replicates deltamethrin content should not exceed 1.2%, and the arithmetic mean value as a measurement result. Determination of loss on drying 4.4 mass fraction 4.4.1 Instruments Oven. 80 ℃ ± 2 ℃; Weighing bottle. an inner diameter of 70mm, 40mm high; Dryer. 4.4.2 Determination Step The weighing bottle placed in an oven bake IH, placed in a desiccator taken cooled to room temperature, weigh (accurate to 0.0002g). Repeating the above steps Step, until a constant weight weighing bottle. 2g sample was placed in the bottle, paving, weighed (accurate to 0.01g), the weighing bottle placed in an oven, without After the lid, bake 2h, removed and placed in a desiccator to cool to room temperature, weigh (accurate to 0.0002g). 4.4.3 computing Loss on drying of the sample according to the formula (2). w2 = m1-m2m × 100 (2) Where. Loss on drying --- w2 of the sample, expressed in%; M1 --- sample mass before drying and weighing bottles in grams (G); --- M2 sample mass after drying and weighing bottles in grams (G); --- m sample mass, in grams (g). 4.4.4 allows poor The measurement results of the two parallel relative deviation should not exceed 30%; and the arithmetic mean as a measurement result. 4.5 pH value measured Carried out in GB/T 1601. 4.6 product testing and acceptance Shall comply with the provisions of GB/T 1604's. Process limit values using rounding value comparison method. 5 marking, labeling, packaging, storage, security and acceptance of 5.1 marking, labeling, packaging Flag deltamethrin original drug, labeling and packaging should comply with the provisions of GB 3796; deltamethrin original drug use clean, dry polyurethane Barrel, net content should be less than 200kg; Other forms of packaging can be employed according to user requirements or ordering protocols, subject to The provisions of GB 3796. 5.2 Storage Deltamethrin original drug package airiness, dry place; storage and transportation, prevent moisture and sunlight, no food, seeds and feed Feed mix, to avoid contact with the skin, eyes, mouth and nose to prevent inhalation. 5.3 Security Deltamethrin is moderately toxic pyrethroid insecticides, inhalation or contact with all of toxic if swallowed potentially fatal, exposure can cause eye pain, Skin allergies. FDA should wear protective equipment, wash with soap after application. This product is no specific antidote, mainly the elimination of poison Matter and symptomatic treatment. 5.4 Acceptance of Deltamethrin original drug acceptance period of one month. From the date of delivery, product quality inspection completed within one month, the indicators should break Together standards.

Appendix A

(Informative) Deltamethrin other names, structural formulas and physicochemical parameters of the basic Other names, structural formulas and physicochemical parameters of the product basic active ingredient deltamethrin follows. ISO common name. Deltamethrin CIPAC Numeric Code. 333 Chemical name. (S) -α- cyano-3-phenoxybenzyl (1R, 3R) -3- (2,2- dibromo-vinyl) -2,2-dimethyl-cyclopropane carboxylate Structure. Empirical formula. C22H19Br2NO3 Molecular weight. 505.2 Biological activity. Insecticides Melting point (℃). 98 ~ 101 Vapor pressure (25 ℃). 2.0 × 10-6Pa Solubility (g/L, 20 ℃). water < 2 × 10-6, 450 acetone, methylene chloride 700, 750 cyclohexane, dimethylformamide 450, Dioxane 900 Stability. light, heat stable, stable in neutral and acidic media, easy to decompose under basic conditions. ......

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