Some standard content:
TCS±65.100
Chemical Industry Standard of the People's Republic of China
(2000)
Published on 2000-06-05
Implementation on 200103-01
Published by the State Administration of Petroleum and Chemical Industry
Reference No.: 7489---20
1G33052000
This standard is equivalent to the United Nations Food and Agriculture Organization FAO)202/1/* (1937 Oxymetholone Standard) and is based on the Chemical Industry Standard CS30G-1930 Dimethoate Technical Code One, and is revised in combination with the actual situation of domestic production The main technical difference between the six standards and HG3355-15 is: the addition of "precursor".
The technical indicators have been adjusted as follows: the first-class product standard, the content of oxydemeton-methyl is 92.0%, the moisture is less than or equal to 6.2%, and the acidity is less than or equal to 0.5%; the first-class product index, the content of oxydemeton-methyl is increased from greater than 710% to greater than 80.0%, and the moisture is adjusted from less than 3.5% to less than 0.3%; the qualified product index, the content of oxydemeton-methyl is increased from greater than 5.0% to 76.34.
The determination of the content of oxydemeton-methyl is determined by the retention layer method: the addition of The high performance phase chromatography method was adopted, which is equivalent to the method of the International Cooperation Council for the Analysis of Ingredients (CIIAC)>202/TC/M/-. The special test age was added, and the rounded value comparison method was adopted for the treatment of the limit effect. The "… The current inspection rules" were introduced in 2011, and its main contents "sampling" and "age rules" were placed at the beginning and end of the "test method" chapter: "safety" and "life" were added. This standard will be implemented from the month of implementation, and will be the same as HG product E-93. This standard is under the jurisdiction of the Chinese People's Republic of China and the Ministry of Chemical Industry. |tt||The responsible unit of this standard is Shanghai Pesticide Research Institute. The co-drafting units of this standard are Shandong Pesticide Industry Co., Ltd., Agricultural Chemical (Group) Co., Ltd. and Hebei Xinyi Chemical Co., Ltd.
The main drafters of this standard are Chen Zhimin, Zhang Renlong, Zhen Bu, Duan Manhua, Zhou Wenjun, Wang Yonglan, Fan Honggang and Wen Bing. This standard was published in April 2011.
This standard is fully interpreted by the Pesticide Standardization Technical Committee. 47
Chemical Industry Standard of the People's Republic of China
Methoate TC
(methoate Technical
The name, structural formula and basic physical and chemical parameters of oxydemeton-methyl are as follows. S () Common name, thr.ethnala
CIraC number: 202
Chemical name, methyl H (N.M. nitrogen ester) chemical formula:
Empirical formula: CHINOIS
Relative mass, 213.2 (according to 133, 1980 international atomic mass spectrometry) Physical activity: Insecticidal
Physical temperature: 15*°C 1-110/C.1333a
Vapor 23.×101
H33 06—2000
Dai Ming H3306—1990
Soluble, soluble in water, acetone, chlorine, methanol, ethanol, alcohol and hydrocarbons, less stable than acetaldehyde, almost no stable than oil ether: 4 Neutral, stable in alcoholic media. Rapidly hydrolyzed at high temperature or alkaline: at 22°C, the average life span is 4 hours in 4H2O
This standard specifies the requirements, test methods, marking, labeling, packaging, transportation of oxydemeton-methyl technical, and is applicable to oxydemeton-methyl technical produced by dimethoate and its products. 2 The provisions contained in the underlined standard shall be cited in this standard and constitute the main text of this standard. The versions shown at the time of publication of this standard are valid. All standards will be revised. The compatibility of the various standards in the standard should be tested by reading the latest version of the following standards: GB60]1383 Titration analysis of chemical agents (volume distribution method> using standard wear commercial case 253-1 limit value long indication method G8/1619791080) Moisture content of surface pesticides/1664-1491 Acceptance certificate for commercial surface pesticides GB/116051979 (19R9) Commercial pesticide formula GB3?!G-1!!! General rules for pesticide packaging National petroleum and chemical industry high 2000-06-05 World Standard 2001-03-01 Implementation 3 Requirements 3.1 Appearance, red brown to yellowish HC 3306-- 2000 3.2 The daily indicators of oxychloride technical preparation should meet the requirements of Table 1. Table 4 Test method Test product - static product Qualified product 4.1 Sampling According to the sampling method of (GR/1G51979 (19R9) for emulsion and liquid state. The sampling package shall be determined by random number table method. The final sampling tray shall be less than 10ml. 4.2 Identification test Syntax: This identification test can be carried out at a fixed time: under the same color operation conditions, the sample liquid is based on the chromatographic peak. The relative difference between the retention time of omethoate and the standard sample should be within 5%: the spot obtained by developing the sample solution by chromatographic method should be consistent with the omethoate spot of the sample solution. 4.3 Determination of omethoate
4.3.1 TLC-chemiluminescence method (trimming method)
4.3.1.1 Method
Use a thin layer plate with oxygen and ethyl acetate as the developing solvent to separate omethoate from the sample solution, use palladium chloride as the color developing agent, and determine by chromatographic method. 4. 3. 1. 2 Try to find, new solution
silica gel-G,
anhydrous ethyl,
sulfuric acid chain: sulfuric acid: water =: 1.
hydrochloric acid ratio brine 1.
potassium iodide potential: 150/.
urine concentration;
n-heptane: glacial acid) -::? : 2, acid-activated density: (KBr () = .95Gl / L, weigh potassium iodide 1. and potassium chloride 13, add a small amount of water, dilute to 100m, shake, calcium oxide is a color solution: 1
weigh 2.1 barium chloride, use .1mol/1. can dissolve 1ml. Dissolve in water, dilute 1c mountain with water, and then standardize the standard solution: ciNa,S,O,) (.2mol.. Prepare according to 4.6 in GB SO1. Sedimentation instruction sheet: / 1:
You take 10ml of starch, 10ml of water. Stir it slowly into 19CmL boiling water. 2min, cool, take the supernatant for use, and use it for two days.
4. 3. 1. 3 apparatus, modified
chromatographic ear:
glass plate, 20cm×20ca
glass sprayer.
pressure bottle: 511mL
micro-reduction table gain: 100)
volume bottle: 0.
liquid weighing tube: _3 mL..
Constant humidity water bath,
4.3.1.4 Determination step: 1. Preparation of silica gel HG3306-2000 Use flat spreading method to coat (approximately 4-58 mL of water per plate) 10 sheets, dry in an oven at 105-1-0℃ for 2h, take out, put in a desiccator and use
h: Determination step: Weigh the sample containing oxydemeton-methyl (accurate to ), (((3) into a 1r. volumetric flask, dilute with anhydrous ethanol to 300°C, accurately take 100mL of the test solution, and put it in a piece On the activated rubber plate, 3cm from the bottom, 1.5cm from each side, drop the sample into the oxygen direct combustion, scrape off 5mm of silicon dirt on both sides to prevent the melt from spreading along the edge, 3cm from the top of the thin layer plate, scrape off 1mm wide liquid parallel to the top edge, and place the sample in a light-filled and gas-filled cylinder as the upper limit. The plate is filled with concentrated solution to a depth of 710m1. When the liquid rises and is measured on the plate, it will be analyzed in the fume hood, and the infrared solvent will be emitted by the workers, and the color of the fertilizer spray will be R. The value is 1. 35 The yellow band of omethoate is completely loaded with drugs in a 10 ml volumetric bottle, and the bottle wall is cleaned with water. Accurately add 10 ml of potassium iodide solution and 1 ml of 1-1 iodine or 1-1 iodine solution, seal the bottle, and sift the solution with a little water. Place the solution in 30-1)°C water for 1 minute, then add 5 ml of 150 g/ml potassium iodide solution.Warm the stomach for 2-3 minutes. Titrate with a standard solution of sulfur dioxide until the wave turns yellow. Add 5g/3ml of starch as indicator. Continue to titrate until the blue color in the drop disappears. This is the hour. At the same time, do a vacuum test.
4. 3. 1. 5 [Calculation]
Express the content of omethoate in the sample as mass fraction, and use the formula (1) as follows: X.05 x 10-8 x
Wherein, the volume of the standard sodium iodide solution in the air: 1L: V, the volume of the standard sodium iodide solution in the sample: mL: the actual concentration of the standard titration solution m; the mass of the test piece R:
0.03--: the amount of omethoate required in grams to be titrated with 1.0% thiosulfate standard solution (N0).1,
4.3.1.6 Allowable difference
The difference in effective concentration shall be set as follows: for superior and first-class products, the standard shall be 2.0: for qualified products, the standard shall be 1.6%. The arithmetic average shall be taken as the result.
4.3-2 Two-effect liquid chromatography
1 The temperature must be kept at 35°C when acidification is used
4.3.2.1 Method
[IC33062000
The sample is dissolved in alcohol, water and alcohol are used as the mobile phase, and the oxygen in the sample is separated by high performance liquid chromatography with high efficiency chromatograph and ultraviolet detector using a combination of L as filler. Quantitative analysis by external cup method. 4.3.2.2 Reagent pool
Methanol: Chromatography.
Water is freshly washed with water,
Mobile phase: water·methanol-90110, mobile phase is finally filtered through a 3.=52 μm diameter induction stream, and then filtered in an ultrasonic microsieve for 1 Gmin
Oxygen content: greater than or equal to ss.%. 4-3.2.3 Apparatus and equipment
High performance liquid chromatography: It has a variable length UV detector, a colorimetric data processor.
Chromatographic column: 5:1-m×3.9mm cc) stainless steel column, filled with Ca-filled material, particle size: 5V.
Ultrasonic high flow meter,
Blade, the aperture is about 0.45m.
4.3.2.4High performance liquid chromatography operating system
|Temperature: 1.0min./min.
Sample temperature: room temperature (temperature difference should be detected by 2
, 22):
Injection volume: 10t..
Retention time: Oxydemeton is 10min.
The above operating conditions are typical. According to different instrument settings, the given operating parameters can be adjusted appropriately to obtain the best results: Typical HPLC chromatogram of omethoate technical is shown in Figure 3. 4.3.2.5 Specific steps: 1. Preparation of standard sample EG33062000 5015(mn) 2. Weigh 0.6% omethoate standard sample to 2% in a 25 ml flask and dilute it with methanol to a certain degree. Place the flask in a degassing container for 10 minutes, cool to room temperature, and filter it with a 0.45 pore filter membrane. b. Try to prepare the HPLC chromatogram of omethoate technical. Take the test solution containing omethoate C.C6 (microliter C.0302) in a 25mL volumetric bottle and dilute to the scale with medium. Place the bottle in an ultrasonic bath to degas for 1min. Cool to room temperature and then pass through a 0.45um aperture mask: e)
Under the above detection conditions, after the instrument baseline is stable, continuously inject the standard sample solution for an appropriate number of times, calculate the weight of each response value, and calculate the response value of each response value as the change in the response value of two adjacent injections. 5, according to the standard solution, sample solution, sample solution, and standard solution, the measurement is carried out in sequence. 4.3.2.6 Calculation
The product of omethoate in the two test solutions and the two standard solutions before and after the sample is measured, and the above method is used to calculate the omethoate in the test solution expressed as mass fraction! Amp
The peak area of omethoate dissolved in the standard sample is almost average. (2)
HC3306-2000
Test the peak area of omethoate dissolved in the deep wave! The average value of the peak area of omethoate dissolved in the deep wave; the quality of the new sample of omethoate
Test the quality of the whole product:
The average value of the single omethoate in the standard sample.
4.3.2.7 The difference between the two test results: for the superior product, the first-class product should not be greater than 2.6, and the standard product should not be greater than 2.6. Take the average value as the test result.
4.4 Determination of moisture
According to the \Carr method\ in GB/T16001979 (1389>, it is allowed to use a moisture meter with appropriate speed for determination. 4.5 Determination of moisture
4.5.1 Reducing agents and solutions
Ethanol solution: (ethanol, water) = 50/50. Methyl red indicator: 2Z alcohol solution,
or oxidation standard: r(NuCH)-U.U5ml/1, refer to G/601 in 4.1, 45-2 Preparation steps
Weigh sample 2 (accurate to 0, Gcc2g) and feel the pre-sensitized 5C mL ethanol solution in 25mL of ethanol solution. One drop of methyl red indicator solution, and 0.05mol/L sodium hydroxide standard titration solution. The whole time is the same as the micro-hole.
4.5.3i
The test acidity X expressed by mass fraction is calculated as follows: (3): XCV-aX5.02)
The actual concentration of sodium hydroxide standard titration tank, mnl/.X100
V-the volume of sodium hydroxide standard titration solution consumed by the test machine, mL: V: The volume of sodium hydroxide standard titration solution consumed by the test machine, mL: The mass of the sample
Compare with the sodium hydroxide standard titration tank (NaOH=1.00ml/ when used to indicate the quality.
1.6 Inspection and acceptance of products
shall comply with the provisions of GB/T1. The slow limit number direct treatment shall adopt the rounded value comparison method in GB/1250. 5 Marking, labeling, packaging, storage and transportation
5 The marking, labeling and other packaging of the oxycarbamide technical shall comply with the provisions of GB. 5.2 The packaging of the oxycarbamide technical can adopt the tough handle packaging with 0T inner coating, or the supply and demand parties can negotiate and adopt the other forms of packaging, but it must comply with the provisions of B3735
5.3 The ventilation must be kept good and no Do not mix with contaminated objects, materials, and accessories. Avoid contact with skin and prevent inhalation.
5.4 Safety Information: Oxydemeton-methyl is a highly organic substance. It is toxic if swallowed or inhaled. It can also penetrate through the skin. Wear protective clothing when using this product. Parts of the body that come into contact with this product should be washed with soap and water in time. If mold occurs, atropine and antidote can be used: and the patient should be sent to the hospital immediately.
5.5 Warranty Period: Under the specified transportation conditions, the warranty period of oxydemeton-methyl technical is one year from the date of production. The factory should meet the requirements of 2. Within the warranty period, the content of oxydemeton-methyl technical should not be less than the indicated content. The acidity should be greater than 10%.
Chromatographic column: 5:1-m×3.9mm) stainless steel column, filled with chain Ca filler, particle size rm: 5V.
Ultrasonic high flow meter,
Drain, pore size is about 0.45m.
4.3.2.4 HPLC operation system
tK: 1.0min./min.
Sample temperature: room temperature (temperature difference should be detected by 2
22):
Injection volume: 10t..
Retention time: Oxydemeton is 10nrin.
The above operating conditions are typical operating conditions. According to different instrument parameters, the given operating parameters can be appropriately adjusted to obtain the best effect: Typical HPLC chromatogram of Oxydemeton original drug is shown in Figure! ：3
4.3.2.5 Steps
）Standard sample is prepared
EG33062000
5015(mn)
Oxydemeton-methyl
Figure 2 Oxydemeton-methyl original drug phase spectrum Weigh 0.6% of oxydemeton-methyl standard sample into a 25ml bottle and dilute it with methanol to a certain degree, extract, place this volumetric bottle in a super-high pressure cooker to degas for 10 minutes, cool to room temperature, and then filter with a 0.45 pore thick filter membrane, b: Try to push the preparation of the discussion
Take the test solution containing omethoate C.C6 (microliter C.0302) in a 25mL volumetric bottle and dilute to the scale with medium. Place the bottle in an ultrasonic bath to degas for 1min. Cool to room temperature and then pass through a 0.45um aperture mask: e)
Under the above detection conditions, after the instrument baseline is stable, continuously inject the standard sample solution for an appropriate number of times, calculate the weight of each response value, and calculate the response value of each response value as the change in the response value of two adjacent injections. 5, according to the standard solution, sample solution, sample solution, and standard solution, the measurement is carried out in sequence. 4.3.2.6 Calculation
The product of omethoate in the two test solutions and the two standard solutions before and after the sample is measured, and the above method is used to calculate the omethoate in the test solution expressed as mass fraction! AmpbZxz.net
The peak area of omethoate dissolved in the standard sample is almost average. (2)
HC3306-2000
Test the peak area of omethoate dissolved in the deep wave! The average value of the peak area of omethoate dissolved in the deep wave; the quality of the new sample of omethoate
Test the quality of the whole product:
The average value of the single omethoate in the standard sample.
4.3.2.7 The difference between the two test results: the superior product, the first-class product should not be greater than 2.6, the standard product should not be greater than 2.6. Take the average value as the test result.
4.4 Determination of moisture
According to the \Carr method\ in GB/T16001979 (1389>, it is allowed to use a moisture meter with appropriate speed for determination. 4.5 Determination of moisture
4.5.1 Reducing agents and solutions
Ethanol solution: (ethanol, water) = 50/50. Methyl red indicator: 2Z alcohol solution,
or oxidation standard: r(NuCH)-U.U5ml/1, refer to G/601 in 4.1, 45-2 Preparation steps
Weigh sample 2 (accurate to 0, Gcc2g) and feel the pre-sensitized 5C mL ethanol solution in 25mL of ethanol solution. One drop of methyl red indicator solution, and 0.05mol/L sodium hydroxide standard titration solution. The whole time is the same as the micro-hole.
4.5.3i
The test acidity X expressed by mass fraction is calculated as follows: (3): XCV-aX5.02)
The actual concentration of sodium hydroxide standard titration tank, mnl/.X100
V-the volume of sodium hydroxide standard titration solution consumed by the test machine, mL: V: The volume of sodium hydroxide standard titration solution consumed by the test machine, mL: The mass of the sample
Compare with the sodium hydroxide standard titration tank (NaOH=1.00ml/ when used to indicate the quality.
1.6 Inspection and acceptance of products
shall comply with the provisions of GB/T1. The slow limit number direct treatment shall adopt the rounded value comparison method in GB/1250. 5 Marking, labeling, packaging, storage and transportation
5 The marking, labeling and other packaging of the oxycarbamide technical shall comply with the provisions of GB. 5.2 The packaging of the oxycarbamide technical can adopt the tough handle packaging with 0T inner coating, or the supply and demand parties can negotiate and adopt the other forms of packaging, but it must comply with the provisions of B3735
5.3 The ventilation must be kept good and no Do not mix with contaminated objects, materials, and accessories. Avoid contact with skin and prevent inhalation.
5.4 Safety Information: Oxydemeton-methyl is a highly organic substance. It is toxic if swallowed or inhaled. It can also penetrate through the skin. Wear protective clothing when using this product. Parts of the body that come into contact with this product should be washed with soap and water in time. If mold occurs, atropine and antidote can be used: and the patient should be sent to the hospital immediately.
5.5 Warranty Period: Under the specified transportation conditions, the warranty period of oxydemeton-methyl technical is one year from the date of production. The factory should meet the requirements of 2. Within the warranty period, the content of oxydemeton-methyl technical should not be less than the indicated content. The acidity should be greater than 10%.
Chromatographic column: 5:1-m×3.9mm) stainless steel column, filled with chain Ca filler, particle size rm: 5V.
Ultrasonic high flow meter,
Drain, the aperture is about 0.45m.
4.3.2.4 HPLC operation system
tK: 1.0min./min.
Sample temperature: room temperature (temperature difference should be 2
detected by the length, 22):
Injection volume: 10t..
Retention time: Oxydemeton is 10nrin.
The above operating conditions are typical frequency operation disks. According to different instrumentation, the given operating parameters can be appropriately adjusted to obtain the best effect: Typical HPLC chromatogram of Oxydemeton original drug is shown in Figure! ：3
4.3.2.5 Steps
）Standard sample is prepared
EG33062000
5015(mn)
Oxydemeton-methyl
Figure 2 Oxydemeton-methyl original drug phase spectrum Weigh 0.6% of oxydemeton-methyl standard sample into a 25ml bottle and dilute it with methanol to a certain degree, extract, place this volumetric bottle in a super-high pressure cooker to degas for 10 minutes, cool to room temperature, and then filter with a 0.45 pore thick filter membrane, b: Try to push the preparation of the discussion
Take the test solution containing omethoate C.C6 (microliter C.0302) in a 25mL volumetric bottle and dilute to the scale with medium. Place the bottle in an ultrasonic bath to degas for 1min. Cool to room temperature and then pass through a 0.45um aperture mask: e)
Under the above detection conditions, after the instrument baseline is stable, continuously inject the standard sample solution for an appropriate number of times, calculate the weight of each response value, and calculate the response value of each response value as the change in the response value of two adjacent injections. 5, according to the standard solution, sample solution, sample solution, and standard solution, the measurement is carried out in sequence. 4.3.2.6 Calculation
The product of omethoate in the two test solutions and the two standard solutions before and after the sample is measured, and the above method is used to calculate the omethoate in the test solution expressed as mass fraction! Amp
The peak area of omethoate dissolved in the standard sample is almost average. (2)
HC3306-2000
Test the peak area of omethoate dissolved in the deep wave! The average value of the peak area of omethoate dissolved in the deep wave; the quality of the new sample of omethoate
Test the quality of the whole product:
The average value of the single omethoate in the standard sample.
4.3.2.7 The difference between the two test results: for the superior product, the first-class product should not be greater than 2.6, and the standard product should not be greater than 2.6. Take the average value as the test result.
4.4 Determination of moisture
According to the \Carr method\ in GB/T16001979 (1389>, it is allowed to use a moisture meter with appropriate speed for determination. 4.5 Determination of moisture
4.5.1 Reducing agents and solutions
Ethanol solution: (ethanol, water) = 50/50. Methyl red indicator: 2Z alcohol solution,
or oxidation standard: r(NuCH)-U.U5ml/1, refer to G/601 in 4.1, 45-2 Preparation steps
Weigh sample 2 (accurate to 0, Gcc2g) and feel the pre-sensitized 5C mL ethanol solution in 25mL of ethanol solution. One drop of methyl red indicator solution, and 0.05mol/L sodium hydroxide standard titration solution. The whole time is the same as the micro-hole.
4.5.3i
The test acidity X expressed by mass fraction is calculated as follows: (3): XCV-aX5.02)
The actual concentration of sodium hydroxide standard titration tank, mnl/.X100
V-the volume of sodium hydroxide standard titration solution consumed by the test machine, mL: V: The volume of sodium hydroxide standard titration solution consumed by the test machine, mL: The mass of the sample
Compare with the sodium hydroxide standard titration tank (NaOH=1.00ml/ when used to indicate the quality.
1.6 Inspection and acceptance of products
shall comply with the provisions of GB/T1. The slow limit number direct treatment shall adopt the rounded value comparison method in GB/1250. 5 Marking, labeling, packaging, storage and transportation
5 The marking, labeling and other packaging of the oxycarbamide technical shall comply with the provisions of GB. 5.2 The packaging of the oxycarbamide technical can adopt the tough handle packaging with 0T inner coating, or the supply and demand parties can negotiate and adopt the other forms of packaging, but it must comply with the provisions of B3735
5.3 The ventilation must be kept good and no Do not mix with contaminated objects, materials, and accessories. Avoid contact with skin and prevent inhalation.
5.4 Safety Information: Oxydemeton-methyl is a highly organic substance. It is toxic if swallowed or inhaled. It can also penetrate through the skin. Wear protective clothing when using this product. Parts of the body that come into contact with this product should be washed with soap and water in time. If mold occurs, atropine and antidote can be used: and the patient should be sent to the hospital immediately.
5.5 Warranty Period: Under the specified transportation conditions, the warranty period of oxydemeton-methyl technical is one year from the date of production. The factory should meet the requirements of 2. Within the warranty period, the content of oxydemeton-methyl technical should not be less than the indicated content. The acidity should be greater than 10%.X100
V—the volume of the standard titration solution of hydroxide consumed by the test machine, L: V: the volume of the standard titration solution of hydroxide consumed by the test machine, mL: the mass of the sample
and the mass of the standard titration solution (NaOH=1.00ml/mL) expressed in terms of the relative mass.
1.6 Inspection and acceptance of products
shall comply with the provisions of GB/T1. The rounded value comparison method in GB/1250 shall be used for direct processing. 5 Marking, labeling, packaging, storage and transportation
5 The marking, labeling and other packaging of dimethoate technical shall comply with the provisions of GB. 5.2 The packaging of dimethoate technical can be a tough handle packaging with a 0T inner coating, or the supply and demand parties can negotiate and adopt other forms of packaging, but it must be 5.3 The product must be kept in a well-ventilated place and must not be mixed with harmful substances, materials, etc. Avoid contact with skin and prevent inhalation. 5.4 Safety Information: Oxydemeton-methyl is highly toxic and is toxic if swallowed or inhaled. It can also penetrate through the skin. Wear protective clothing when using this product. Any part of the body that has come into contact with this product should be washed with soap and water in time. If mold occurs, atropine and antidote can be used immediately: and the patient should be sent to hospital immediately. 5.5 Warranty Period: Under the specified transportation conditions, the warranty period of oxydemeton-methyl technical is one year from the date of production. The oxydemeton-methyl technical should meet the requirements of 2. Within the warranty period, the acid content should not be less than the indicated content. The acid content should be greater than 10%.X100
V—the volume of the standard titration solution of hydroxide consumed by the test machine, L: V: the volume of the standard titration solution of hydroxide consumed by the test machine, mL: the mass of the sample
and the mass of the standard titration solution (NaOH=1.00ml/mL) expressed in terms of the relative mass.
1.6 Inspection and acceptance of products
shall comply with the provisions of GB/T1. The rounded value comparison method in GB/1250 shall be used for direct processing. 5 Marking, labeling, packaging, storage and transportation
5 The marking, labeling and other packaging of dimethoate technical shall comply with the provisions of GB. 5.2 The packaging of dimethoate technical can be a tough handle packaging with a 0T inner coating, or the supply and demand parties can negotiate and adopt other forms of packaging, but it must be 5.3 The product must be kept in a well-ventilated place and must not be mixed with harmful substances, materials, etc. Avoid contact with skin and prevent inhalation. 5.4 Safety Information: Oxydemeton-methyl is highly toxic and is toxic if swallowed or inhaled. It can also penetrate through the skin. Wear protective clothing when using this product. Any part of the body that has come into contact with this product should be washed with soap and water in time. If mold occurs, atropine and antidote can be used immediately: and the patient should be sent to hospital immediately. 5.5 Warranty Period: Under the specified transportation conditions, the warranty period of oxydemeton-methyl technical is one year from the date of production. The oxydemeton-methyl technical should meet the requirements of 2. Within the warranty period, the acid content should not be less than the indicated content. The acid content should be greater than 10%.
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