GB 23553-2009Prometryn wettable powders (English PDF)

Foreword

The standard Chapter 3, Chapter 5 are mandatory, the rest are recommended.

Appendix A of this standard is the data appendix.

Since the implementation of this standard, the original industry standard HG2202-1991 "Prometryne WP" void.

The standard proposed by China Petroleum and Chemical Industry Association.

This standard by the National Standardization Technical Committee on Pesticides (SAC/TC133) centralized.

1 Scope

This standard specifies the Prometryne WP requirements, test methods and marking, labeling, packaging, storage and transportation.

This standard applies to the Prometryne original drug, suitable additives and fillers processed Prometryne WP.

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.

GB/T 1600 Determination of Water Pesticides Determination of GB/T 1601 Pesticides pH value GB/T 1604 Goods pesticide regulations for acceptance GB/T 1605-2001 Sampling Method commercial pesticides GB 3796 pesticide packaging General GB/T 5451 WP Pesticide wettability measurement method GB/T 14825-2006 Method for determination of pesticide suspension GB/T 16150 pesticide powder, wettable powder fineness measurement method GB/T 19136 Determination of Pesticide Thermal storage stability

3 Requirements

5 Marking, labeling, packaging, storage and transportation

WP 5.1 Prometryne signs, labeling and packaging should comply with the provisions of GB 3796.

WP 5.2 Prometryne aluminum foil bag or plastic bag, net weight of 100g, 200g, 250g, 500g; packaging can Cartons, corrugated cardboard box or Plastic boxes each containing a net content not exceeding 20kg. Also available upon request or order agreement, the use of other forms of Type of packaging, subject to the provisions of GB 3796.

5.3 Prometryne WP package should be stored in well-ventilated, dry coffers.

5.4 storage, prevent moisture and sunlight, no food, seed, feed mix, avoid contact with skin, eyes, mouth and nose to prevent inhalation.

5.5 Security. Prometryne low toxicity herbicides. The FDA should wear protective gloves. Nose and mouth to prevent inhalation, or skin contact with exposed parts of the body the goods should be promptly washed with soap and water. In case of poisoning should promptly consult a doctor.

5.6 Warranty. under the specified storage conditions Prometryne guarantee wettable powder, from date of manufacture for 2 years.

Appendix A

(Informative)

Prometryne content packed column gas chromatographic method A. 1 Method summary Sample was dissolved in chloroform to triadimefon as internal standard, using polyethylene glycol 20M/GasChromQ packed column and flame Ionization detector to sample Prometryne gas chromatographic separation and determination.

A. 2 Reagents and solutions Chloroform;

Triadimefon. should not interfere with the analysis of impurities, >=95%;

Prometryne Sample. Known Prometryne mass fraction >=99.0%;

Internal standard solution. Weigh 10.0g of triadimefon, placed 1000mL volumetric flask with chloroform to dissolve and dilute to volume, shake.

A. 3 Instrument

Gas chromatograph. with a hydrogen flame ionization detector;

Chromatographic data processor or chromatography workstation;

Column. 3% polyethylene glycol 20M/GasChromQ (80 mesh to 100 mesh) stainless steel column (column or glass);

Micro injector. 10µL.

A. 4 GC operating conditions Temperature (°C).200 Column temperature gasification chamber 230, the detector chamber 230;

Gas flow rate (mL/min). carrier gas (N2) 80, hydrogen gas 40, air 400;

Injection volume (µL). 1.0;

Retention time (min). Prometryne about 5.2, about 7.0 internal standard.

GC operating conditions described above, the Department of typical operating parameters. According to the characteristics of different instruments, given operating parameters adjusted as appropriate, in order to obtain the best results. Typical Prometryne original drug and the internal standard packed column gas chromatography is shown in Figure A. 1.

1 --- Prometryne;

2 --- internal standard (triadimefon).

Figure A. 1 Prometryne WP and the internal standard packed column gas chromatogram

A. 5 measuring step

A. 5.1 preparation of standard solution Weigh Prometryne standard 0.1g (accurate to 0.0002g), placed in 15mL stoppered glass bottle with a pipette accurately transferred to 10mL Internal standard solution, and shake.

A. 5.2 Sample preparation solution it weighs about 0.1g sample containing Prometryne of (accurate to 0.0002g), placed in 15mL stoppered glass vial, with A. 5.1 used with a pipette accurately transferred to the internal standard solution 10mL, shake.

A. 5.3 Determination Under these operating conditions, the instrument until a stable baseline, the number of continuous injection doses of the standard solution, calculated for each needle Prometryne and the internal standard peak area Repeatability ratio, when two needles Prometryne relative change compared with the internal standard peak area of less than 1.2%, according to the standard solution, sample to be adjacent Solution, sample solution, the order of the standard solution was measured.

A. 6 Calculation

The two needle sample solution and measured before and after the two doses of the standard sample solution Prometryne and the internal standard peak area ratios are averaged.

Flutter grass net sample mass fraction of 1 (%) according to equation (A.1) Calculated.

Where.

--- Prometryne standard mass fraction, expressed as a percentage.

A. 7 allowable difference the difference between two parallel determination results, 25% should be no more than 0.5%, 50% and 40% should not exceed 1.0%, respectively, and the arithmetic mean as a measurement result.