GB 24757-2009 English PDFUS$209.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB 24757-2009: [GB/T 24757-2009] Bensulfuron-methyl technical Status: Valid
Basic dataStandard ID: GB 24757-2009 (GB24757-2009)Description (Translated English): [GB/T 24757-2009] Bensulfuron-methyl technical Sector / Industry: National Standard Classification of Chinese Standard: G25 Classification of International Standard: 65.100.20 Word Count Estimation: 8,841 Date of Issue: 2009-11-30 Date of Implementation: 2010-07-01 Quoted Standard: GB/T 1601; GB/T 1604; GB/T 1605-2001; GB 3796 Adopted Standard: FAO 502/TC-2002, MOD Regulation (derived from): Announcement of Newly Approved National Standards No. 14 of 2009 (No. 154 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 Bensulfuron original drug requirements, test methods and marking, labeling, packaging, storage and transportation. This standard applies to Bensulfuron and impurities generated in the production of Bensulfuron original drug. GB 24757-2009: [GB/T 24757-2009] Bensulfuron-methyl technical---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.Bensulfuron-methyl technical ICS 65.100.20 G25 National Standards of People's Republic of China Bensulfuron original drug Published 2009-11-30 2010-07-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China issued ForewordThis standard in Chapter 3, Section 5 is mandatory, the rest are recommended. This modification uses standard FAO Specification 502/T C (2002) "bensulfuron original drug." This standard modification method using foreign advanced standards for the redrafted law. This standard FAO Specification 502/T C (2002) "bensulfuron TC" The main technical differences. This standard specifies --- bensulfuron mass fraction ≥96.0%, FAO predetermined bensulfuron mass fraction ≥975g/kg. --- This standard specifies the drying loss indicators, FAO specifications not control the indicators. --- This standard specifies a pH range of indicators, FAO specifications not control the indicators. 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. Participated in the drafting of this standard. Qantas Jiangsu Agrochemical Co., Ltd., Jiangsu Province Institute of hormones. The main drafters. Jiang Minyi, Xing Jun, Chen Jie, Fan Lei. Bensulfuron original drug The product names of other active ingredients benzyl ethyl structural formula and basic physicochemical parameters are as follows. ISO common name. Bensulfuron-methyl CAS Registry Number. 83055-99-6 CIPAC Numeric Code. 502 Chemical Name. 3- (4,6-dimethoxypyrimidin-2-yl) -1- (2-methoxy-formyl-benzyl) sulfonylurea Structure. Empirical formula. C16H18N4O7S Molecular weight. 410.4 (according to 2005 international relative atomic mass) Biological activity. weeding Melting point. about 185 ℃ ~ 188 ℃ Vapor pressure (25 ℃). 2.8mPa Solubility (20 ℃, g/L). 1.38 acetone; acetonitrile, 5.38; 11.7 dichloromethane; ethyl acetate 1.66; hexane 0.31; xylene 0.28; Water 2.9mg/L (25 ℃, pH5), 120mg/L (25 ℃, pH7) Stability. slightly alkaline (pH 8) aqueous solution of steady, slowly decompose in aqueous solution slightly acidic, DT5011d (pH5), 143d (PH7) Range 1 This standard specifies the requirements bensulfuron original drug, Test Method for marking, labeling, packaging, storage and transportation. This standard applies to impurities derived from bensulfuron-methyl and the production of the composition of bensulfuron original drug.2 Normative referencesTerms of the following documents become provisions of this standard by reference in this standard. For dated reference documents, all later Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to agreements based on this standard Whether the latest versions of these documents. For undated references, the latest version applies to this standard. 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 to pale yellow powder. 3.2 bensulfuron original drug should meet the requirements of Table 1. Table 1 bensulfuron original drug quality control program indicators Item Index Bensulfuron mass fraction /% ≥ 96.0 Loss on drying /% ≤ 0.5 The pH range of 4 to 7 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 Infrared spectroscopy --- bensulfuron sample and standard ~ 400cm-1 in the infrared range of 1 4000cm-absorption spectrum should be no significant the difference. Bensulfuron standard infrared spectra of Figure 1. FIG 1 bensulfuron standard infrared spectra The present liquid chromatography --- identification test can be carried out simultaneously with the measurement bensulfuron mass fraction. Chromatography under the same operating conditions, Sample solution of a chromatographic peak with a retention time of the standard solution of the benzyl peak retention time of ethyl, relative difference which should 1.5% or less. 4.3 Determination of bensulfuron mass fraction 4.3.1 Method summary Sample solution was dissolved in methanol with ammonia, acetonitrile + water + acetic acid as the mobile phase, used as a filler stainless μBondapakC18 Column and a UV detector (235nm), bensulfuron sample of metsulfuron and high performance liquid chromatography assay. 4.3.2 Reagents and solutions Acetic acid; Acetonitrile. HPLC grade; Water. The new secondary steam distilled water; Ammonia. (NH3) = 26% ~ 30%; Ammonia solution. [Psi] (ammonia. water) = 1.300; Ammonia in methanol. [Psi] (ammonia solution. methanol) = 1.4; Bensulfuron Sample. bensulfuron known mass fraction, ≥98.0%. 4.3.3 Instruments HPLC. a variable wavelength UV detector; Chromatographic data processor or workstation; Column. 150mm × 4.6mm (. I.d) stainless steel column, μBondapakC185μm filler contents (or equivalent effect Column); Filter. membrane pore size of about 0.45 m; Microsyringe. 50μL; Quantitative sampling tube. 5μL; Ultrasonic cleaning. 4.3.4 HPLC operating conditions Mobile phase. [Psi] (acetonitrile. water. glacial acetic acid) = 50.50.0.16; Flow rate. 1.0mL/min; Column temperature. room temperature (temperature change should be less than 2 deg.] C); Detection wavelength. 235nm; Injection Volume. 5μL; Retention time. bensulfuron about 4.6min. 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. Typical bensulfuron original drug by HPLC is shown in Figure 2. 1 --- bensulfuron. Figure 2 HPLC bensulfuron original drug 4.3.5 Determination Step 4.3.5.1 Preparation of standard solution Weigh 0.05g bensulfuron standard (accurate to 0.0002g), a 100mL volumetric flask, dilute to the mark with methanolic ammonia Degrees, to dissolve the sample ultrasonic vibration 5min, cooled to room temperature, shaking. 4.3.5.2 Preparation of sample solution Weigh a sample containing 0.05g of bensulfuron methyl (accurate to 0.0002g), a 100mL volumetric flask, and diluted with methanolic ammonia To the mark to dissolve the sample ultrasonic vibration 5min, cooled to room temperature, shaking. 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 two adjacent needles bensulfuron peak area becomes relatively 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 mass fraction of the sample bensulfuron 1 (%), according to equation (1). 1 = A2 (1) Where. A1 --- the standard solution, bensulfuron average peak area; A2 --- sample solution, bensulfuron average peak area; --- mass fraction of bensulfuron standard, expressed in%. 4.3.7 allows poor Results replicates difference bensulfuron twice the mass fraction should be not more than 1.2%, and the arithmetic mean value as a measurement result. 4.4 Determination of loss on drying 4.4.1 Instruments Oven temperature. 105 ℃ ± 2 ℃; Weighing bottle. diameter 50mm, height 20mm; Dryer. 4.4.2 Determination Step The weighing bottle placed in a thermostatic oven bake 1.0h, then cooled to room temperature and placed in a desiccator weigh (accurate to 0.0002g). repeat The above steps until a constant weight weighing bottle. 5g sample weighed (accurate to 0.0002g), placed in a bottle, paving. The weighing bottle back Oven, uncovered after drying IH, capped, cooled to room temperature out into a desiccator weigh (accurate to 0.0002g). Repeating the above steps Step, the weighing bottle and the sample until a constant weight. 2 Loss on drying (%) according to equation (2). (2) Where. 4.4.3 allows poor The measurement results of the relative difference between the two parallel should be less than 20%, and the arithmetic mean value as a measurement result. Carried out in GB/T 1601. 4.6 product testing and acceptance Product inspection and acceptance shall comply with GB/T 1604's. Process limit values, the comparison value using rounding. 5 marking, labeling, packaging, storage and transportation Flag 5.1 bensulfuron original drug, labeling and packaging should comply with the provisions of GB 3796. 5.2 bensulfuron original drug use clean bags lined with plastic bags or cardboard drum lined with clean plastic bag, barrel net content Generally 25kg or 50kg. The user may also use other protocol requests or orders for forms of packaging, subject of GB 3796 Provisions. 5.3 bensulfuron original drug package airiness, dry place. 5.4 storage and transportation to prevent moisture and sunlight, no food, seed, feed mix, avoid contact with skin, eyes, nose and mouth to prevent inhalation. 5.5 Security. This is a low-toxic herbicide. Are swallowed and inhaled toxic, it can penetrate through the skin. When using this product to avoid contact with the skin, After application with soap and rinse with water. Poisoning should immediately sent to hospital for symptomatic treatment. 5.6 Acceptance period. bensulfuron of acceptance of the original drug for a month. From the date of delivery, product quality inspection completed within a month, its various Indicators shall comply with this standard. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB 24757-2009_English be delivered?Answer: Upon your order, we will start to translate GB 24757-2009_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 24757-2009_English with my colleagues?Answer: Yes. The purchased PDF of GB 24757-2009_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. 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