US$289.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB 28150-2011: [GB/T 28150-2011] Chlorsulfuron water dispersible granules
Status: Valid
| Standard ID | USD | BUY PDF | Lead-Days | Standard Title (Description) | Status |
| GB 28150-2011 | 289 |
Add to Cart
|
3 days
|
[GB/T 28150-2011] Chlorsulfuron water dispersible granules
| Valid |
Basic data
Standard ID: GB 28150-2011 (GB28150-2011)
Description (Translated English): [GB/T 28150-2011] Chlorsulfuron water dispersible granules
Sector / Industry: National Standard
Classification of Chinese Standard: G25
Classification of International Standard: 65.100.20
Word Count Estimation: 11,113
Date of Issue: 2011-12-30
Date of Implementation: 2012-04-15
Quoted Standard: GB/T 1600; GB/T 1601; GB/T 1604; GB/T 1605-2001; GB 3796; GB/T 5451; GB/T 6682-2008; GB/T 8170-2008; GB/T 14825-2006; GB/T 16150; GB/T 19136
Adopted Standard: FAO specifications 391/WG-2003, 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 Chlorsulfuron WDG requirements, test methods and marking, labeling, packaging, storage and warranty. This standard applies to chlorsulfuron original drug, carriers and additives from the processing of chlorsulfuron water dispersible granule.
GB 28150-2011: [GB/T 28150-2011] Chlorsulfuron water dispersible granules
---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.
Chlorsulfuron water dispersible granules
ICS 65.100.20
G25
National Standards of People's Republic of China
Chlorsulfuron water dispersible granules
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 391/WG (2003) "chlorsulfuron water dispersible granules."
This standard FAO Specification 391/WG (2003) the main technical difference "chlorsulfuron water dispersible granules" and the following reasons.
--- This standard suspension rate ≥90%, FAO Specifications predetermined ≥60%, in the FAO strict specifications;
This standard specifies --- wetting time ≤15s, FAO Specifications predetermined ≤10s; Persistent foaming (amount of foam after 1min) ≤40mL,
FAO specifications prescribed ≤60mL; are based on the actual level of domestic products may be;
This standard also specifies --- moisture, particle size, pH range indicator, and FAO is not specified, compared with the present standard control program FAO
comprehensive.
Please note that some of the content of this document may involve patents, the issuing authority of this document does not assume responsibility for identifying these patents.
The standard proposed by China Petroleum and Chemical Industry Federation.
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. Hormone Research Institute Co., Ltd., Jiangsu Province, Agricultural Engineering Technology Research Center hormone Jiangsu Province Co.
Secretary, Shenyang harvest pesticides Limited.
The main drafters. Jiang Minyi, Xing Jun, Fan Lei, Wang Yang.
Chlorsulfuron water dispersible granules
1 Scope
This standard specifies chlorsulfuron water dispersible granules of requirements, test methods and marking, labeling, packaging, storage and period.
This standard applies to the processing by the TC chlorsulfuron, carriers and adjuvants formed chlorsulfuron water dispersible granules.
Note. Other names, structural formulas and physicochemical parameters of the basic chlorsulfuron 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.
GB/T 1600 Pesticide Method Moisture
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
GB/T 5451 method for measuring the wettability of agrochemical wettable
GB/T 6682-2008 analytical laboratory use specifications and test methods (ISO 3696. 1987, MOD)
GB/T 8170-2008 rounding off means about rules and determining limiting values
GB/T 14825-2006 Method for determination of pesticide suspension
GB/T 16150 pesticide powders, wettable powder fineness measurement method
GB T 19136 Determination of heat storage stability of pesticide /
3.1 Composition and appearance
This product should meet the criteria of the drug and chlorsulfuron suitable auxiliaries and processed into filler, dry, flowable uniform particles, no
See the foreign objects and lumps.
3.2 Technical Specifications
Chlorsulfuron water dispersible granules should meet the requirements of Table 1.
Table 1 chlorsulfuron control water dispersible granules Item Index
project
index
25% 75%
Chlorsulfuron mass fraction /% 2.5-2.5 25.0 1.5-1.5 75.0
Moisture content /% ≤ 2.0
TABLE 1 (cont.)
project
index
25% 75%
The pH range of 5.0 to 7.0
Wetting time/s ≤ 15
Wet sieve test (Test through 44μm sieve) /% ≥ 98
Suspension rate /% ≥ 90
Particle size (355μm ~ 1430μm) /% ≥ 98
Dispersibility /% ≥ 80
Persistent foaming (amount of foam after 1min)/mL ≤ 40
Passing a heat storage stability test
When a normal production, the thermal storage stability test was measured at least once every three months.
Test Method 4
Safety Tips. to use this standard shall have practical experience of laboratory work. This standard does not indicate any safety issues. Make
With those who have the responsibility to take appropriate safety and health practices and to ensure compliance with the provisions of relevant state laws and regulations.
4.1 General provisions
This standard reagent in the absence of water and other requirements stated, refer to three predetermined analytical reagents and GB/T 6682-2008 of
water. The test results performed by determining 4.3.3 rounding value in comparison 8170-2008 GB/T .
4.2 Sampling
Carried out in GB/T 1605-2001 of "commodity solid preparation sampling" approach. Determining Sample packages with a random number table method; final draw
Sample size should be no less than 1000g.
4.3 Identification Test
The present liquid chromatography --- identification test can be carried out simultaneously with the determination of the mass fraction of chlorsulfuron. Chromatography under the same operating conditions, the test
Comp retention time of the standard solution chlorsulfuron peak retention time of a peak solution, the relative difference of 1.5% should be
Or less.
4.4 Determination of the mass fraction of chlorsulfuron
4.4.1 Method summary
Sample solution was dissolved in methanol with aqueous ammonia, acetic acid in acetonitrile and water as mobile phase, using Nova-PakC18 filler to a stainless steel column
And a UV detector (230nm), the sample chlorsulfuron and high performance liquid chromatography assay.
4.4.2 Reagents and solutions
Methanol. HPLC grade;
Acetonitrile. HPLC grade;
Glacial acetic acid;
Water. The new secondary steam distilled water;
Aqueous ammonia. w (NH3) = 26% ~ 30%;
Ammonia solution. [Psi] (ammonia. water) = 1.300;
Ammonia in methanol. [Psi] (ammonia solution. methanol) = 1.4;
Chlorsulfuron Sample. chlorsulfuron known mass fraction w≥98.0%.
4.4.3 Instruments
HPLC. a variable wavelength UV detector;
Chromatographic data processor;
Column. 150mm × 3.9mm (id) stainless steel column Nova-PakC18 filler contents (or equivalent effect column);
Filter. membrane pore size of about 0.45 m;
Microsyringe. 50μL;
Quantitative sampling tube. 5μL;
Ultrasonic cleaning.
4.4.4 HPLC operating conditions
Mobile phase. Ψ (CH3CN.H2O.CH3COOH) = 40.60.0.5;
Flow rate. 1.0mL/min;
Column temperature. room temperature (temperature change should be less than 2 deg.] C);
Detection wavelength. 230nm;
Injection Volume. 5μL;
Retention time. chlorsulfuron about 4.3min.
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 chlorsulfuron water dispersible granules by HPLC is shown in Figure 1.
1 --- chlorsulfuron.
FIG 1 chlorsulfuron water-dispersible granules by HPLC FIG.
4.4.5 Determination Step
4.4.5.1 Preparation of standard solution
Weigh 0.05g chlorsulfuron standard (accurate to 0.0001g), a 100mL volumetric flask, dilute to volume with methanol solution of ammonia,
To dissolve the sample ultrasonic vibration 5min, cooled to room temperature, shaking.
4.4.5.2 Preparation of sample solution
Weigh 0.05g of chlorine-containing specimens chlorsulfuron (accurate to 0.0001g), a 100mL volumetric flask, diluted with methanol solution of ammonia to
Scale, to dissolve the sample ultrasonic vibration 5min, cooled to room temperature, shaken and filtered.
4.4.5.3 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 needles chlorsulfuron relative change in peak area adjacent
After less than 1.2%, measured according to the standard solution, sample solution, the sample solution, the order of standard solution.
4.4.6 computing
The mass fraction of the sample according to chlorsulfuron formula (1).
w1 = A2
· M1 · w
A1 · m2
(1)
Where.
W1 --- chlorsulfuron sample mass fraction in%;
A2 --- sample solution, the average peak area chlorsulfuron;
M1 --- Sample mass in grams (G);
W --- chlorsulfuron standard mass fraction in%;
A1 --- the standard solution, the average peak area chlorsulfuron;
--- M2 sample mass, in grams (g).
4.4.7 allows poor
Results replicates difference chlorsulfuron twice the mass fraction of 75% water dispersible granule should be less than 1.0%; 25% water-dispersible granules should not
0.5%, respectively, and the arithmetic mean value as a measurement result.
4.5 Determination of Moisture
According to GB/T 1600 in the "azeotropic distillation method".
4.6 pH value measured
Carried out in GB/T 1601.
4.7 Determination of the suspension rate
Proceed as GB/T 14825-2006 4.1. Weigh 0.2g of chlorine-containing specimens chlorsulfuron (accurate to 0.0001g), the bottom of the cylinder
25mL whole suspension was transferred to 100mL volumetric flask, with ammonia in methanol to volume, shaken at 3min ultrasound, static
Set, after filtration, was measured according to 4.4 mass chlorsulfuron, calculate suspensibility.
4.8 Determination of wetting time
Carried out in GB/T 5451.
4.9 Determination of fineness
According to GB/T 16150 in the "wet sieve method".
Determination of particle size 4.10
4.10.1 Instruments
Group standard sieve. aperture (355μm ~ 1430μm);
Sieve Shaker. amplitude of 25mm, 1400 times/min.
4.10.2 measuring step
The standard sieve vertically stacked, placed in a small sieve large particle size above a particle size sieve, sieve bottoms receiving pan while the combination of a good set of fixed sieve vibrating sieve
Machine, accurately weighed sample 100g water dispersible granules (accurate to 0.1 g of), placed on the top sieve, stamped seal, shock promoter sieve shaker 5min,
Collecting a predetermined size range sieve was weighed (to the nearest 0.1g).
4.10.3 computing
The particle size of the sample according to the formula (2).
w2 = m1m × 100
(2)
Where.
--- size w2 of the sample, expressed in%;
--- M1 predetermined oversize mass within the particle diameter range in grams (G);
--- m sample mass, in grams (g).
Determination dispersible 4.11
4.11.1 Method summary
The amount of water in water dispersible granules was added under stirring and mixing to prepare a suspension, after standing for some time, removing a top 9/10
Suspension, suspension and 1/10 bottom drying the precipitate was measured gravimetrically.
4.11.2 reagents and equipment
Standard hard water. ρ (Ca2 Mg2) = 342mg/L, pH = 6.0 ~ 7.0, according to GB/T 14825-2006 formulation;
Beaker. 1000mL, inner diameter (102 ± 2) mm;
Electric mixer. with speed control (0 ~ 1000) r/min;
Stainless steel stirring rod (see FIG. 2). with 4 fixed propeller stirring blade stirring bar, the angle between the blades is 45 °;
A rotary vacuum evaporator;
Stopwatch.
4.11.3 measuring step
At 20 ℃ ± 1 ℃, standard hard water was added to the 900mL beaker, stir bar is fixed in the center of the beaker, stirring the beaker from the blade bar
Bottom 15mm, and a stirring blade pitch rotation direction advancing the rod to ensure that the liquid swirls up stir bar, a speed of opening 300r/min of
A stirrer, a water-dispersible granules 9g sample (to the nearest 0.1g) was stirred in water was added, stirring was continued for 1min. Close stirring, the suspension was
Stand for 1min, 9/10 withdrawn suspension (810mL), the entire operation should be completed within 30s ~ 60s, slender glass tube and held beginning tip
In the final level, and the suspension is possible without stirring, 90mL of water was distilled off remaining suspension using a rotary vacuum evaporator, from 60 ℃ ~
At 70 deg.] C and dried to constant weight, weighed (to the nearest 0.1g).
4.11.4 computing
Dispersion of the sample according to equation (3) is calculated.
w3 = 10
(M-m1)
9m × 100
(3)
Where.
W3 --- dispersibility of the sample, expressed in%;
m --- the mass of the sample taken, in grams (G);
After mass M1 --- dried residue, in grams (g).
In millimeters
FIG 2 stainless stirring rod
4.12 Persistent foaming test
4.12.1 Method summary
A predetermined amount of sample is mixed with standard hard water, the foam volume recorded on standing.
4.12.2 Reagent
Standard hard water. ρ (Ca2 Mg2) = 342mg/L, pH = 6.0 ~ 7.0, according to GB/T 14825-2006 formulation.
4.12.3 Instruments and Appliances
Stoppered graduated cylinder. 250mL (division value 2mL, 0 ~ 250mL tick 20cm ~ 21.5cm, 250mL scale line to the bottom of the stopper
4cm ~ 6cm);
Industrial balance. a sense of the amount of 0.1g.
4.12.4 measuring step
Was added 180mL graduated cylinder standard hard water, 1.0g sample was weighed into a measuring cylinder (to the nearest 0.1 g of), was added to the standard hard water from the cylinder
9cm scale line of the bottom plug, the plug cover to the bottom of the cylinder as the center, upside down 30 times (2s). Standing on the bench
1min, foam volume recorded.
4.13 Thermal storage stability test
According to GB/T 19136 in the "solid preparation" performed. After the heat storage mass chlorsulfuron fraction should be not less than 97% of the average content before storage, the suspension
Shall comply with the requirements for the standard rate is still qualified.
4.14 product inspection and acceptance
Shall comply with the provisions of GB/T 1604's.
5 marking, labeling, packaging, storage, security, guarantee period
5.1 marking, labeling, packaging
Flag chlorsulfuron water dispersible granules, labeling, packaging should meet the requirements of GB 3796; chlorsulfuron water dispersible granules aluminized plastic applications
Or composite aluminum bag. The user may also request or order protocol, other forms of packaging, subject to the provisions of GB 3796.
5.2 Storage
Chlorsulfuron package WDG airiness, dry place; storage and transportation, prevent moisture and sunlight, no food, seed
Promoter, feed-mixing, avoid contact with the skin, eyes, mouth and nose to prevent inhalation.
5.3 Security
This product is a low toxicity of sulfonylurea herbicides. 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.
5.4 Warranty Period
Warranty. Storage conditions specified in, chlorsulfuron guarantee water dispersible granules, from two years from the production date.
Appendix A
(Informative)
Other names chlorsulfuron, structural formulas and physicochemical parameters of the basic
This product is an active ingredient chloro other names, structural formulas and physicochemical parameters of the basic metsulfuron follows.
ISO common name. Chlorsulfuron
CAS Registry Number. 64902-72-3
CIPAC Numeric Code. 391
Chemical name. 1- (2-chlorophenyl) -3- (4-methoxy-6-methyl-1,3,5-triazin-2-yl) urea
Structure.
Empirical formula. C12H12ClN5O4S
Molecular weight. 357.8
Biological activity. weeding
Melting point. about 174 ℃ ~ 178 ℃
Vapor pressure (25 ℃). 3nPa
Solubility (22 ℃, g/L). 57 acetone; dichloromethane 102; 14 methanol; toluene 3; hexane 0.01; water 0.1 ~ 0.125 (25 ℃,
pH4.1), 0.3 (25 ℃, pH5)
Stability. when dry, light stability; in the soil, due to hydrolysis and microbial degradation and damage; half-life in soil
150d ~ 160d.
1102-
......
Tips & Frequently Asked Questions:
Question 1: How long will the true-PDF of GB 28150-2011_English be delivered?
Answer: Upon your order, we will start to translate GB 28150-2011_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 28150-2011_English with my colleagues?
Answer: Yes. The purchased PDF of GB 28150-2011_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. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs):
List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?
Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.
