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GB 9557-2008 English PDF

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GB 9557-2008: [GB/T 9557-2008] phoxim emulsifiable concentrates
Status: Valid

GB 9557: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB 9557-2008English209 Add to Cart 3 days [Need to translate] [GB/T 9557-2008] phoxim emulsifiable concentrates Valid GB 9557-2008
GB 9557-1999English279 Add to Cart 3 days [Need to translate] Phoxim emulsifiable concentrate Obsolete GB 9557-1999
GB 9557-1988EnglishRFQ ASK 3 days [Need to translate] Phoxim emulsifiable concentrate Obsolete GB 9557-1988

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Basic data

Standard ID GB 9557-2008 (GB9557-2008)
Description (Translated English) [GB/T 9557-2008] phoxim emulsifiable concentrates
Sector / Industry National Standard
Classification of Chinese Standard G25
Classification of International Standard 65.100.10
Word Count Estimation 8,849
Date of Issue 2008-07-11
Date of Implementation 2009-01-01
Older Standard (superseded by this standard) GB 9557-1999
Quoted Standard GB/T 601; GB/T 1600; GB/T 1603; GB/T 1604; GB/T 1605-2001; GB 4838; 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 40% phoxim the requirements, test methods and marking, labeling, packaging, storage and transportation. This standard applies to Phoxim and emulsifier dissolved in a suitable solvent mixture of the 40% phoxim.

GB 9557-2008: [GB/T 9557-2008] phoxim 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.
phoxim emulsifiable concentrates ICS 65.100.10 G25 National Standards of People's Republic of China Replacing GB 9557-1999 40% phoxim 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. This standard replaces GB 9557-1999 "40% phoxim EC." The main differences between this standard and GB 9557-1999 are as follows. --- Deleted chloride control program. From the date of implementation of this standard, replace and repeal GB 9557-1999. 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. Bowring Chemical Co., Ltd., Jiangsu, Shandong Sheng Bang Lunan Pesticide Co., Ltd. The main drafters of this standard. Meibao Gui, Li Xiujie, in bright, Yu Jianping, Liu Tong Lin, Yanhan Jun. This standard was first released in June 1988, the first revision in 1999, this is the second revision. The standard commission Secretariat of National Pesticide Standardisation Technical Committee responsible for the interpretation. 40% phoxim Other name, structural formula and basic physicochemical parameters of the active ingredient phoxim product as follows. ISO common name. phoxim Structure. Empirical formula. C12H15N2O3PS Molecular Weight. 298.3 (according to 2005 international relative atomic mass) Biological Activity. Pesticides Melting point. 5 ℃ ~ 6 ℃ Solubility (at room temperature). water 7mg/L, methylene chloride is greater than 500g/kg, isopropanol greater than 600g/kg, slightly soluble in petroleum ether Stability. the original drug at room temperature as a light red oil. Distillation decomposition of water and acidic medium stable

1 Scope

This standard specifies 40% phoxim EC requirements, test methods and marking, labeling, packaging, storage and transportation. This standard applies to the original drug phoxim and emulsifier dissolved in a suitable solvent formulated as 40% phoxim EC.

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. Preparation of GB/T 601 chemical reagent standard titration solution GB/T 1600 Determination of Water Pesticides 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 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 phoxim the original drug is made of a homogeneous oily liquid, may appear a little precipitate after storage. 3.2 Technical Specifications 40% phoxim EC shall comply with the requirements of Table 1. Table 1 40% phoxim EC Control Project Index Item Index Phoxim mass fraction (in cis phoxim meter) /% ≥ 40.0 Moisture /% ≤ 0.5 Acidity (H2SO4 meter) /% ≤ 0.3 Emulsion stability (diluted 200 times) Qualified Low temperature stability a qualified Thermal storage stability of a qualified a low temperature stability test, the thermal storage stability tests at normal production, at least every three months, once detected. Test Method 4 4.1 Sampling According to GB/T 1605-2001 in "liquid formulations sampling" approach. Determined by sampling a random number table method packages, the final sample size Not less than 200mL. 4.2 Identification Test HPLC --- The identification test can be carried out simultaneously with the determination of phoxim content. Under the same chromatographic operating conditions, the test A sample solution peak retention time compared with standard sample solution cis phoxim chromatographic retention time, the relative difference should be 1.5% Fewer. 4.3 Determination of the mass fraction of phoxim 4.3.1 Method summary Sample was dissolved in methanol, methanol + water as the mobile phase, to use as filler Capcel-PakC18 stainless steel column and UV detector (254nm), the sample of phoxim reverse phase high performance liquid chromatography, external standard. 4.3.2 Reagents and solutions Methanol. HPLC grade; Water. The new secondary steam distilled water; Phoxim standard. a known mass fraction ≥99.0%. 4.3.3 Instruments High performance liquid chromatography. a variable wavelength UV detector; Chromatographic data processor; Column. 150mm × 4.6mm (. I.d) stainless steel column, built Capcel-PakC18,5μm filler (or with equivalent effect Column); Filter. filter pore size of about 0.45μm; Micro injector. 50μL; Quantitative sample line. 5μL; Ultrasonic cleaner. 4.3.4 HPLC operating conditions Mobile phase. ψ (methanol. water) = 75.25, by membrane filtration, and degassing; Flow rate. 1.0mL/min; Column temperature. room temperature (temperature change should not exceed 2 ℃); Detection wavelength. 254nm; Injection volume. 5μL; Retention time. 8.6min. 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. A typical 40% phoxim HPLC is shown in Figure 1. 1 --- cis phoxim. Figure 1 40% phoxim EC HPLC chromatogram 4.3.5 measuring step 4.3.5.1 Preparation of standard solution Weigh 0.1g phoxim standard (accurate to 0.0002g), a 50mL volumetric flask, dissolved in methanol and diluted to the mark, shake uniform. Using a pipette to take the above solution 5mL to 50mL volumetric flask, dilute with mobile phase to the mark. 4.3.5.2 Preparation of sample solution Weigh phoxim containing 0.1g sample (accurate to 0.0002g), a 50mL volumetric flask, dissolved in methanol and diluted to the mark, Shake well. Using a pipette to take the above solution 5mL to 50mL volumetric flask, dilute with mobile phase 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 phoxim peak area relative change After 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 needle sample solution and measured before and after the two doses of the standard sample solution phoxim peak areas are averaged. Sample phoxim The mass fraction of 1 (%), according to equation (1). 1 = A2 (1) Where. A1 --- the standard solution, the average phoxim peak area; A2 --- sample solution, phoxim mean peak area; --- Phoxim standard mass fraction, expressed as a percentage. 4.3.7 allowable difference Phoxim poor quality score of two parallel determination results shall not be greater than 0.8%, the arithmetic mean value as a measurement result. 4.4 Determination of Moisture According to GB/T 1600 the "Karl Fischer method". 4.5 Determination of acidity 4.5.1 Reagents and solutions 95% ethanol; Sodium hydroxide standard titration solution Ba (NaOH) = 0.02mol/L, according to GB/T 601 preparation and calibration; Methyl red ethanol solution. ρ (methyl red) of 1g/L; Bromocresol green ethanol solution. ρ (bromocresol green) to 1g/L; Mixed indicator. ψ (methyl red ethanol solution. bromocresol green ethanol solution) = 5. 4.5.2 measuring step Weigh the sample 5g (accurate to 0.0002g), placed in a 250mL Erlenmeyer flask, add 95% ethanol 50mL, shake the sample Dissolved. Added 2mL mixed indicator, titrated with sodium hydroxide standard titration solution, the solution changes from red to green is shallow end. Simultaneously Blank determination. 4.5.3 Calculation Acidity 2 (%) of the sample, according to equation (2). Ba 2 = (Vp Vp 1- 0) · M 100 (2) Where. Ba --- the actual concentration of sodium hydroxide standard titration solution, expressed in moles per liter (mol/L); Vp 1 --- titration of the sample solution, the volume of consumption of sodium hydroxide standard titration solution, in milliliters (mL); V0 --- titrate blank solution, the volume of consumption of sodium hydroxide standard titration solution, in milliliters (mL); --- The M values of the molar mass of sulfuric acid, in units of grams per mole (g/mol), [M (1/2H2SO4) = 49g/mol]. 4.6 Emulsion stability test Standard hard water sample was diluted 200-fold, according to GB/T 1603 test, the non-oil slick, no precipitation under qualified. 4.7 Low temperature stability test According to GB/T 19137 in "liquid preparation", in the bottom of the centrifuge tube educt volume 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, mass fraction of 40% phoxim should not be less than the measured mass fraction before hot storage 90%, not more than 0.4% acidity, emulsion stability should continue to meet the standards. 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 40% phoxim EC marking, labeling, packaging, should meet the requirements of GB 4838. 5.2 40% phoxim EC prohibit the use of general metal pail, with applications within the plug and the outer cover brown glass bottles, aluminum bottles or fluorinated bottles, each Bottle net weight 150g (mL), 300g (mL), 500g (mL); overpack Plastic boxes or corrugated boxes, each box should not exceed the net content 15kg. 5.3 According to user requirements or the order agreement, other forms of packaging may be used, subject to the provisions of GB 4838. 5.4 40% phoxim package should be stored in well-ventilated, dry coffers. 5.5 storage, prevent moisture and sunlight, no food, seed, feed mix, avoid contact with skin, eyes, mouth and nose to prevent inhalation. 5.6 Security. phoxim as low toxicity. It is a cholinesterase inhibiting organophosphorus pesticides, are swallowed or inhaled poisoning. It can also pass Penetrate through the skin. The FDA should wear protective gloves, gas masks, wear clean protective clothing. After application, immediately wash with soap and water. In case of poisoning, should ask the doctor. Phosphorus poisoning is atropine antidote. If necessary, for artificial respiration. 5.7 Warranty. under specified conditions of storage, 40% phoxim EC guarantee period, counting from the date of manufacture 2 years. 1 year phoxim Content should not be less than 39.0%; 2 years, phoxim content should not be less than 38.0%, acidity should not exceed 0.5%.

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