GB 9556-2008 English PDF

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GB 9556-2008: [GB/T 9556-2008] phoxim technical
Status: Valid

GB 9556: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB 9556-2008	189	Add to Cart	3 days	[GB/T 9556-2008] phoxim technical	Valid
GB 9556-1999	239	Add to Cart	2 days	Phoxim technical	Obsolete
GB 9556-1988	RFQ	ASK	3 days	Phoxim technical	Obsolete

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Basic data

Standard ID: GB 9556-2008 (GB9556-2008)
Description (Translated English): [GB/T 9556-2008] phoxim technical
Sector / Industry: National Standard
Classification of Chinese Standard: G25
Classification of International Standard: 65.100.10
Word Count Estimation: 7,739
Date of Issue: 2008-07-11
Date of Implementation: 2009-01-01
Older Standard (superseded by this standard): GB 9556-1999
Quoted Standard: GB/T 601; GB/T 1600; GB/T 1604; GB/T 1605-2001; GB 3796
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 Phoxim requirements, test methods and marking, labeling, packaging, storage and transportation. This standard applies to phoxim its impurities generated in the production of Phoxim.

GB 9556-2008: [GB/T 9556-2008] phoxim 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.
phoxim technical ICS 65.100.10 G25 National Standards of People's Republic of China Replacing GB 9556-1999 Phoxim the original drug 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 9556-1999 "phoxim the original drug." The main differences between this standard and GB 9556-1999 are as follows. --- Canceled and classification. --- Deleted chloride control program. From the date of implementation of this standard, replace and repeal GB 9556-1999. 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. Phoxim the original drug 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 requirements for phoxim the original drug, test methods and marking, labeling, packaging, storage and transportation. This standard applies to the impurities generated by the phoxim its production consisting of phoxim the original drug.

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 1604 Goods pesticide regulations for acceptance GB/T 1605-2001 Sampling Method commercial pesticides GB 3796 pesticide packaging General

3 Requirements

3.1 Appearance Pale yellow to reddish brown oily liquid. 3.2 Technical Specifications Phoxim the original drug should also meet the requirements of Table 1. Table 1 phoxim the original drug control project indicators Item Index Phoxim mass fraction (in cis phoxim meter) /% ≥ 90.0 Moisture /% ≤ 0.5 Acidity (H2SO4 meter) /% ≤ 0.3 Test Method 4 4.1 Sampling According to GB/T 1605-2001 "on the original drug sampling" approach. Determining sample package using a random number table method, the final sample size should not be Less than 100g. 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 retention time, the relative difference should be less than 1.5%. 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. Typical phoxim the original drug HPLC is shown in Figure 1. 1 --- cis phoxim. Figure 1 phoxim the original drug by high performance liquid 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 1.2%, 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; ......

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