Some standard content:
National Standard of the People's Republic of China
GB3677—83
Published on May 14, 1983
Yellowlead
Implemented on March 1, 1984
National Bureau of Standards
W National Standard of the People's Republic of China
Yellowlead
UDC667.21
GB3677—83
This standard applies to chemical raw material yellow lead. Yellow lead is a yellow powder, the main component of which is lead monoxide. Yellow lead is used in chrome yellow pigments, lead salts, ceramics, glass, rubber and other industries. Technical Specifications
Yellow lead shall meet the following technical indicators: Lead oxide, %
Metallic lead, %
Lead peroxide, %
Nitric acid insoluble matter, %
Water, %
Ferric oxide, %
Copper oxide, %
Sieve residue (180 mesh), %
2 Inspection methods
2.1 Determination method of lead oxide content
2.1.1 Reagents and solutions
Glacial acetic acid (GB676-78): 1:3 solution. Not less than
Not more than
Not more than
Not more than
Not more than
Not more than
Not more than
Not more than
Ammonium acetate (GB1292-77): 20% solution. Hexamethylenetetramine (GB140078): 20% solution. Xylenol orange: 0.5% solution.
Other industrial use
Glass industry use
Ethylenediaminetetraacetic acid disodium (GB1401-78): 0.02M standard solution (prepared according to GB601-77). 2.1.2 Main instruments
Electro-optical analytical balance: maximum load 200g, sensitivity 0.1mg. 2.1.3 Determination procedures
Issued by the National Bureau of Standards on May 14, 1983
Implemented on March 1, 1984
W. GB3677-83
Weigh 10 g of the sample (accurate to 0.0002 g), place it in a 300 ml beaker, moisten it with a little water, add 50 ml of acetic acid solution while stirring continuously, heat, filter after dissolving, and collect the filtrate in a 1000 ml volumetric flask , rinse the beaker and funnel with hot distilled water several times until there is no lead ion (test with 10% potassium dichromate solution), cool and dilute with distilled water to the scale, shake well, accurately pipette 25 ml into a 250 ml conical flask, add distilled water to make the total volume reach about 150 ml, add 10 ml of ammonium acetate solution, 10 ml of hexamethylenetetramine solution, add 3 to 4 drops of xylenol orange indicator, and add disodium ethylenediaminetetraacetic acid standard solution until it becomes bright yellow and transparent, which is the end point. 2.1.4 Expression and calculation of results
The content of lead oxide is calculated according to the following formula:
Pb0%-V·MX2:232×100 .
G×1000
Wherein: V—volume of disodium ethylenediaminetetraacetic acid standard solution consumed in titration, milliliters; M——molar concentration of disodium ethylenediaminetetraacetic acid; G——weight of sample, grams;
0.2232—grams of lead oxide per milligram molecule. 2.2 Determination of metallic lead content
2.2.1 Reagents and solutions
Nitric acid (GB626-78): 13% solution.
Ammonia water (GB631-77): 11% solution.
Glacial acetic acid (GB676-78): 1:3 solution. Hexamethylenetetramine (GB1400-78): 20% solution. Ammonium acetate (GB1292-77): 20% solution. Xylenol orange: 0.5% solution.
Disodium ethylenediaminetetraacetate (GB1401-78): 0.02M standard solution (prepared according to GB601-77). 2.2.2 Determination procedure
Collect the filter residue for analyzing the lead oxide content in the original beaker, add 10 ml of nitric acid solution, heat and dissolve, filter with the original filter paper, collect the filtrate in another 300 ml beaker, rinse with hot distilled water until there is no lead ion (test with 10% potassium dichromate solution), then put half a litmus paper into the beaker, neutralize with ammonia solution to slightly alkaline, then acidify with acetic acid solution to pH 5-6, add 5 ml of ammonium acetate solution, 5 ml of hexamethylenetetramine solution, add 3-4 drops of xylenol orange indicator, add distilled water to make the total volume reach about 200 ml, and add disodium ethylenediaminetetraacetate standard solution until it is bright yellow and transparent, which is the end point. 2.2.3 Expression and calculation of results
The content of metallic lead is calculated by the following formula:
V·MX0.2072×100
Wherein: V—volume of disodium ethylenediaminetetraacetic acid standard solution consumed in titration, milliliters; M—molar concentration of disodium ethylenediaminetetraacetic acid; G—weight of sample, grams;
0.2072—grams of metallic lead per milligram molecule. 2.3 Determination of lead peroxide bzxZ.net
2.3.1 Reagents and solutions
Glacial acetic acid (GB676-78): 1:3 solution. Sodium acetate (GB69377): Add distilled water to prepare a saturated solution. Sodium thiosulfate (GB637-77): 0.1N standard solution (prepared according to GB601-77). Soluble starch (HGB3095-59): 0.5% solution. Potassium iodide (GB1272-77).
GB3677-83
Mixed solution of acetic acid and saturated sodium acetate: Take 5 ml of acetic acid and add it to 95 ml of saturated sodium acetate solution. 2.3.2 Determination procedure
Weigh 10 g of the sample (accurate to 0.01 g), place it in a 500 ml iodine volume bottle, add dozens of glass beads with a diameter of 2 to 4 mm, moisten it with a little distilled water, add 20 ml of acetic acid solution, and after it is completely dissolved, add 150200 ml of acetic acid and saturated sodium acetate mixed solution, add 0.5 g of potassium iodide, cover the bottle stopper, shake until dissolved, rinse the bottle stopper and bottle wall with distilled water, and titrate with sodium thiosulfate standard solution until it turns light yellow. Add about 2 ml of starch indicator and continue to titrate until it is colorless and transparent, which is the end point. 2.3.3 Expression and calculation of results
The content of lead peroxide is calculated as follows:
V·NX0.1196,
Wherein: V—volume of sodium thiosulfate standard solution consumed in titration, milliliters; N—equivalent concentration of sodium thiosulfate standard solution; G—weight of sample, grams;
0.1196—grams of lead peroxide per milligram equivalent. 2.4 Determination of nitric acid insoluble matter
2.4.1 Reagents and solutions
Nitric acid (GB626-78): 1:3 solution. Hydrogen peroxide (GB1616-79): 1:1 solution. 2.4.2 Main instruments
2X-1 rotary vane vacuum pump: pumping rate 1 liter/second. Ultimate vacuum degree 5×10-4 mmHg.
Electro-optical analytical balance: maximum load 200 g, sensitivity 0.1 mg. G, crucible filter: filter plate pore size 3~4 μm. 2.4.3 Determination procedure
(3)
Weigh 20 g of the sample (accurate to 0.01 g) and place it in a 300 ml beaker, add 80 ml of nitric acid solution, heat, and add hydrogen peroxide solution drop by drop with a dropper bottle under constant stirring until the lead peroxide is reduced, dissolved and transparent. Filter with a G4 crucible filter that has been dried to constant weight and wash with hot water until neutral, then place the filter in a 105~110℃ oven and dry to constant weight. 2.4.4 Expression and calculation of results
The content of nitric acid insoluble matter is calculated as follows:
Nitric acid insoluble matter%=
Where: A--weight of filter and residue, g; B--weight of filter, g;
G--weight of sample, g.
2.5 Determination of ferric oxide content
2.5.1 Reagents and solutions
AB,
Nitric acid (GB626-78) (superior purity): 1:1, 1:3 solutions. Hydrochloric acid (GB622-77): 1:1 solution.
Ammonia water (GB631-77): 1:1 solution. Disodium ethylenediaminetetraacetate (GB1401-78). (4)
Disodium ethylenediaminetetraacetate solution: weigh 327 g disodium ethylenediaminetetraacetate and dissolve it in 500 ml water, add 160 ml ammonia water and dilute to 1000 ml with distilled water.
Ammonium acetate (GB1292-77): 20% solution. Hydroxylamine hydrochloride (HB3-967-76): 10% solution (freshly prepared). 3
GB3677—83
O-phenanthroline (GB1293—77): 0.25% solution. Pure iron (purity not less than 99.9%).
Hydrogen peroxide (GB1616—79): 1:1 solution. Iron standard solution: weigh 0.25% pure iron.1 gram (accurate to 0.0002 grams), add 10 milliliters of 111 nitric acid solution, heat to dissolve, boil to drive out nitrogen oxides, cool, transfer the solution into a 1000 milliliter volumetric flask, dilute to scale with distilled water, shake well, draw 25 milliliters into a 500 milliliter volumetric flask, add 5 milliliters of 1:1 hydrochloric acid and dilute to scale with water, shake well, and prepare a solution with an iron content of 5 micrograms per milliliter. 2.5.2 Main instruments
72 type spectrophotometer: light source voltage 10 volts/5.5 volts wavelength range 420700 nanometers.
Electro-optical analytical balance: maximum load 200 grams, sensitivity 0.1 mg. 2.5.3 Drawing of standard curve
Pipette 0.00, 1.00, 2.00, 3.00, 4.00, 5.00 and 6.00 ml of iron standard solution into a 100 ml beaker respectively, add 6 ml of disodium ethylenediaminetetraacetic acid solution, add ammonia solution or hydrochloric acid solution dropwise to adjust the pH to about 6 (test with pH test paper), then add 2.5 ml of ammonium acetate solution and 1 ml of hydroxylamine hydrochloride solution, shake well, immerse the beaker in a boiling water bath, add 4 ml of o-phenanthroline solution after two minutes, shake well, continue heating for 5 minutes, remove and cool, transfer to a 50 ml volumetric flask, add water to dilute to the scale, shake well, place in a colorimetric cell, and measure the extinction values at wavelengths of 500-515 nm. 2.5.4 Determination Procedures
Weigh 1 gram of the sample (accurate to 0.0002 grams), place it in a 100 ml beaker, add 5 ml of 1:3 nitric acid solution, heat to dissolve, reduce it to transparency with hydrogen peroxide, and then slowly heat and evaporate until a large amount of lead nitrate crystals are precipitated, remove and cool, then add 6 ml of disodium ethylenediaminetetraacetic acid solution, add ammonia water or hydrochloric acid solution dropwise, adjust the pH to about 6 (test with pH test paper), then add 2.5 ml of ammonium acetate solution and 1 ml of hydroxylamine hydrochloride solution and shake well, immerse the beaker in a boiling water bath, add 4 ml of o-phenanthroline solution after two minutes, shake well, continue heating for 5 minutes, remove and cool. Transfer to a 50 ml volumetric flask, dilute with water to the scale, shake, place in a colorimetric tank, and measure the extinction value of the solution at a wavelength of 500-515 nanometers (when analyzing the sample, do a blank test at the same time). 2.5.5 Expression and calculation of results
The content of ferric oxide is calculated as follows:
Fe2O3%=
Wherein: A——the amount of iron measured by colorimetry, microgram, G——the weight of the sample, gram;
1.43——the coefficient for converting iron into ferric oxide. 2.6 Determination of copper oxide content
2.6.1 Reagents and solutions
Nitric acid (GB626-78): (superior purity): 1:1, 13 solution. Ammonia water (GB631-77): 1:1 solution. Ammonium acetate (GB1292-77).
Hydrogen peroxide (GB1616-79): 1:1 solution. Anhydrous ethanol (GB678-78).
Chloroform (GB682-78).
Pure copper (purity not less than 99.9%).
(5)
Ammonium acetate solution: Weigh 150 g of ammonium acetate, dissolve in distilled water and dilute to 500 ml, adjust the pH to about 4.5 with 11 nitric acid solution, add 5 ml of hydroxylamine hydrochloride solution, 5 ml of new cuprous spirit solution, and 5 ml of chloroform to extract and remove copper until the organic phase is colorless, discard the organic phase, and filter the aqueous phase with filter paper for later use. Hydroxylamine hydrochloride (HG3-967-76): 10% solution (freshly prepared) (remove copper according to the ammonium acetate method). New cuprous spirit: 0.1% anhydrous ethanol solution. 4
W.bzsoso.cOGB3677-—83
Copper standard solution: weigh 0.1 g of pure copper (accurate to 0.0002 g) and place it in a 200 ml beaker, add 10 ml of 1:1 nitric acid solution, slowly heat and dissolve, drive out nitrogen oxides, remove and cool, transfer to a 1000 ml volumetric flask, dilute to scale with water, accurately pipette 25 ml into a 500 ml volumetric flask, dilute to scale with water, shake well, and prepare a solution with 5 micrograms of copper per ml. 2.6.2 Main instruments
72 type spectrophotometer: light source voltage 10V/5.5V. Wavelength range 420700 nm.
Electro-optical analytical balance: maximum load 200 g, sensitivity 0.1 mg. 2.6.3 Drawing of standard curve
Take 0.00, 1.00, 2.00, 3.00, 4.00, 5.00 ml of copper standard solution respectively, place in a 125 ml separatory funnel, dilute with water to about 40 ml, add 5 ml of ammonium acetate solution, adjust pH to about 4.5 with 11 nitric acid solution or ammonia solution, add 2 ml of hydroxylamine hydrochloride solution, 2 ml of new cuprous solution, shake well and place for 5 minutes, add 10 ml of chloroform, shake for 1 minute, place the organic phase in a colorimetric tank after standing and stratifying, and measure the extinction value at a wavelength of 470 nm in turn. 2.6.4 Determination procedure
Weigh 1 gram of sample (accurate to 0.0002 g) and place in a 100 ml beaker, add 5 ml of 1:3 nitric acid solution, heat, and drop hydrogen peroxide solution to reduce until the solution becomes transparent. Remove nitrogen oxide, transfer to a 125 ml separatory funnel, dilute with water to about 40 ml, add 5 ml of ammonium acetate solution, adjust the pH to about 4.5 with 1:1 nitric acid or ammonia solution, add 2 ml of hydroxylamine hydrochloride solution, 2 ml of new cuprous acid solution, shake well, let stand for 5 minutes, add 10 ml of chloroform, shake for 1 minute, let stand for stratification, put the organic phase into a colorimetric tank, and measure the extinction value at a wavelength of 470 nanometers (when analyzing the sample, a blank test is also performed). 2.6.5 Expression and calculation of results
The copper oxide content is calculated according to the following formula:
Where: A-the amount of copper measured by colorimetry, microgram; G-the weight of the sample, grams;
1.25-the coefficient for converting copper into copper oxide. 2.7 Determination of sieve residue
Cu0%=4X25×100
According to Method A of GB1715-79 "Determination of pigment sieve residue". 2.8 Determination of moisture content
According to GB1714-79 "Determination of moisture content in pigments". 3 Inspection rules
3.1 The quality inspection department of the manufacturer shall be responsible for the inspection of the products to ensure that all products leaving the factory meet the requirements of this standard. Each batch of products leaving the factory shall be accompanied by a certificate of product grade.
3.2 The user shall inspect according to the inspection rules and test methods specified in this standard. If the inspection results do not meet this standard, the original batch number shall be re-sampled and re-tested according to twice the number of sampling barrels. 3.3 If both parties disagree with the re-test results, arbitration may be conducted, and the arbitration institution shall be selected by agreement between the two parties. 3.4 The sampling method is based on batches. For each batch of barrels, take all 1 to 2 barrels, 2 barrels for 38 barrels, 3 barrels for 9 to 25 barrels, 5 barrels for 26 to 100 barrels, 8 barrels for 101 to 500 barrels, 13 barrels for 501 to 1000 barrels, 20 barrels for 1001 to 3000 barrels, and 32 barrels for 3001 to 10000 barrels. Use a sampler to take 100 grams from the top and bottom of the barrel. If the number of barrels is small and the sample is insufficient, the sampling amount should be increased. Mix the sample, take an average sample of 0.5 kg by quartering, and divide it into two clean and dry ground-mouth bottles, affix labels, and indicate the manufacturer, product name, production date, grade, batch number, and sampling date. One bottle is for inspection, and the other bottle is sealed and stored for one year for re-inspection. 4 Packaging, marking, storage and transportation
W.bzsoso.coI4.1 Packaging
GB3677—83
Red lead is packaged in iron barrels lined with plastic bags or kraft paper bags, wooden boxes, and plastic woven bags, with net weights of 25, 40, and 50 kg respectively. 4.2 Marking
The barrel should have the manufacturer's name, product name, trademark, brand, grade, net weight, production date, and signs such as "caution to moisture", "handle with care", and "toxic".
4.3 Storage
Red lead should be stored in a dry place, moisture is strictly prohibited, and it should be stored separately from acidic and alkaline items. 4.4 Transportation
Be careful when handling, and do not cause collision or fall to avoid damage to the packaging. Additional remarks:
This standard was proposed by the National Technical Committee for Standardization of Paints and Pigments, and is under the jurisdiction of the National Technical Committee for Standardization of Paints and Pigments.
This standard was drafted by Shenyang Paint Factory, the leader of the national standard working group for red and yellow lead. The main drafters of this standard are Wang Jingfa, Tian Yazhen and Zhai Xiuyun. 6
W.1 mg. 2.5.3 Drawing of standard curve
Pipette 0.00, 1.00, 2.00, 3.00, 4.00, 5.00, 6.00 ml of iron standard solution into a 100 ml beaker, add 6 ml of disodium ethylenediaminetetraacetic acid solution, drop ammonia solution or hydrochloric acid solution, adjust the pH to about 6 (test with pH test paper), then add 2.5 ml of ammonium acetate solution and 1 ml of hydroxylamine hydrochloride solution, shake well, immerse the beaker in a boiling water bath, add 4 ml of o-phenanthroline solution after two minutes, shake well, continue heating for 5 minutes, remove and cool, transfer to a 50 ml volumetric flask, add water to dilute to the scale, shake well, place in a colorimetric tank, and measure the extinction value at a wavelength of 500-515 nanometers. 2.5.4 Determination Procedures
Weigh 1 gram of the sample (accurate to 0.0002 grams), place it in a 100 ml beaker, add 5 ml of 1:3 nitric acid solution, heat to dissolve, reduce it to transparency with hydrogen peroxide, and then slowly heat and evaporate until a large amount of lead nitrate crystals are precipitated, remove and cool, then add 6 ml of disodium ethylenediaminetetraacetic acid solution, add ammonia water or hydrochloric acid solution dropwise, adjust the pH to about 6 (test with pH test paper), then add 2.5 ml of ammonium acetate solution and 1 ml of hydroxylamine hydrochloride solution and shake well, immerse the beaker in a boiling water bath, add 4 ml of o-phenanthroline solution after two minutes, shake well, continue heating for 5 minutes, remove and cool. Transfer to a 50 ml volumetric flask, dilute with water to the scale, shake, place in a colorimetric tank, and measure the extinction value of the solution at a wavelength of 500-515 nanometers (when analyzing the sample, do a blank test at the same time). 2.5.5 Expression and calculation of results
The content of ferric oxide is calculated as follows:
Fe2O3%=
Wherein: A——the amount of iron measured by colorimetry, microgram, G——the weight of the sample, gram;
1.43——the coefficient for converting iron into ferric oxide. 2.6 Determination of copper oxide content
2.6.1 Reagents and solutions
Nitric acid (GB626-78): (superior purity): 1:1, 13 solution. Ammonia water (GB631-77): 1:1 solution. Ammonium acetate (GB1292-77).
Hydrogen peroxide (GB1616-79): 1:1 solution. Anhydrous ethanol (GB678-78).
Chloroform (GB682-78).
Pure copper (purity not less than 99.9%).
(5)
Ammonium acetate solution: Weigh 150 g of ammonium acetate, dissolve in distilled water and dilute to 500 ml, adjust the pH to about 4.5 with 11 nitric acid solution, add 5 ml of hydroxylamine hydrochloride solution, 5 ml of new cuprous spirit solution, and 5 ml of chloroform to extract and remove copper until the organic phase is colorless, discard the organic phase, and filter the aqueous phase with filter paper for later use. Hydroxylamine hydrochloride (HG3-967-76): 10% solution (freshly prepared) (remove copper according to the ammonium acetate method). New cuprous spirit: 0.1% anhydrous ethanol solution. 4
W.bzsoso.cOGB3677-—83
Copper standard solution: weigh 0.1 g of pure copper (accurate to 0.0002 g) and place it in a 200 ml beaker, add 10 ml of 1:1 nitric acid solution, slowly heat and dissolve, drive out nitrogen oxides, remove and cool, transfer to a 1000 ml volumetric flask, dilute to scale with water, accurately pipette 25 ml into a 500 ml volumetric flask, dilute to scale with water, shake well, and prepare a solution with 5 micrograms of copper per ml. 2.6.2 Main instruments
72 type spectrophotometer: light source voltage 10V/5.5V. Wavelength range 420700 nm.
Electro-optical analytical balance: maximum load 200 g, sensitivity 0.1 mg. 2.6.3 Drawing of standard curve
Take 0.00, 1.00, 2.00, 3.00, 4.00, 5.00 ml of copper standard solution respectively, place in a 125 ml separatory funnel, dilute with water to about 40 ml, add 5 ml of ammonium acetate solution, adjust pH to about 4.5 with 11 nitric acid solution or ammonia solution, add 2 ml of hydroxylamine hydrochloride solution, 2 ml of new cuprous solution, shake well and place for 5 minutes, add 10 ml of chloroform, shake for 1 minute, place the organic phase in a colorimetric tank after standing and stratifying, and measure the extinction value at a wavelength of 470 nm in turn. 2.6.4 Determination procedure
Weigh 1 gram of sample (accurate to 0.0002 g) and place in a 100 ml beaker, add 5 ml of 1:3 nitric acid solution, heat, and drop hydrogen peroxide solution to reduce until the solution becomes transparent. Remove nitrogen oxide, transfer to a 125 ml separatory funnel, dilute with water to about 40 ml, add 5 ml of ammonium acetate solution, adjust the pH to about 4.5 with 1:1 nitric acid or ammonia solution, add 2 ml of hydroxylamine hydrochloride solution, 2 ml of new cuprous acid solution, shake well, let stand for 5 minutes, add 10 ml of chloroform, shake for 1 minute, let stand for stratification, put the organic phase into a colorimetric tank, and measure the extinction value at a wavelength of 470 nanometers (when analyzing the sample, a blank test is also performed). 2.6.5 Expression and calculation of results
The copper oxide content is calculated according to the following formula:
Where: A-the amount of copper measured by colorimetry, microgram; G-the weight of the sample, grams;
1.25-the coefficient for converting copper into copper oxide. 2.7 Determination of sieve residue
Cu0%=4X25×100
According to Method A of GB1715-79 "Determination of pigment sieve residue". 2.8 Determination of moisture content
According to GB1714-79 "Determination of moisture content in pigments". 3 Inspection rules
3.1 The quality inspection department of the manufacturer shall be responsible for the inspection of the products to ensure that all products leaving the factory meet the requirements of this standard. Each batch of products leaving the factory shall be accompanied by a certificate of product grade.
3.2 The user shall inspect according to the inspection rules and test methods specified in this standard. If the inspection results do not meet this standard, the original batch number shall be re-sampled and re-tested according to twice the number of sampling barrels. 3.3 If both parties disagree with the re-test results, arbitration may be conducted, and the arbitration institution shall be selected by agreement between the two parties. 3.4 The sampling method is based on batches. For each batch of barrels, take all 1 to 2 barrels, 2 barrels for 38 barrels, 3 barrels for 9 to 25 barrels, 5 barrels for 26 to 100 barrels, 8 barrels for 101 to 500 barrels, 13 barrels for 501 to 1000 barrels, 20 barrels for 1001 to 3000 barrels, and 32 barrels for 3001 to 10000 barrels. Use a sampler to take 100 grams from the top and bottom of the barrel. If the number of barrels is small and the sample is insufficient, the sampling amount should be increased. Mix the sample, take an average sample of 0.5 kg by quartering, and divide it into two clean and dry ground-mouth bottles, affix labels, and indicate the manufacturer, product name, production date, grade, batch number, and sampling date. One bottle is for inspection, and the other bottle is sealed and stored for one year for re-inspection. 4 Packaging, marking, storage and transportation
W.bzsoso.coI4.1 Packaging
GB3677—83
Red lead is packaged in iron barrels lined with plastic bags or kraft paper bags, wooden boxes, and plastic woven bags, with net weights of 25, 40, and 50 kg respectively. 4.2 Marking
The barrel should have the manufacturer's name, product name, trademark, brand, grade, net weight, production date, and signs such as "caution to moisture", "handle with care", and "toxic".
4.3 Storage
Red lead should be stored in a dry place, moisture is strictly prohibited, and it should be stored separately from acidic and alkaline items. 4.4 Transportation
Be careful when handling, and do not cause collision or fall to avoid damage to the packaging. Additional remarks:
This standard was proposed by the National Technical Committee for Standardization of Paints and Pigments, and is under the jurisdiction of the National Technical Committee for Standardization of Paints and Pigments.
This standard was drafted by Shenyang Paint Factory, the leader of the national standard working group for red and yellow lead. The main drafters of this standard are Wang Jingfa, Tian Yazhen and Zhai Xiuyun. 6
W.1 mg. 2.5.3 Drawing of standard curve
Pipette 0.00, 1.00, 2.00, 3.00, 4.00, 5.00, 6.00 ml of iron standard solution into a 100 ml beaker, add 6 ml of disodium ethylenediaminetetraacetic acid solution, drop ammonia solution or hydrochloric acid solution, adjust the pH to about 6 (test with pH test paper), then add 2.5 ml of ammonium acetate solution and 1 ml of hydroxylamine hydrochloride solution, shake well, immerse the beaker in a boiling water bath, add 4 ml of o-phenanthroline solution after two minutes, shake well, continue heating for 5 minutes, remove and cool, transfer to a 50 ml volumetric flask, add water to dilute to the scale, shake well, place in a colorimetric tank, and measure the extinction value at a wavelength of 500-515 nanometers. 2.5.4 Determination Procedures
Weigh 1 gram of the sample (accurate to 0.0002 grams), place it in a 100 ml beaker, add 5 ml of 1:3 nitric acid solution, heat to dissolve, reduce it to transparency with hydrogen peroxide, and then slowly heat and evaporate until a large amount of lead nitrate crystals are precipitated, remove and cool, then add 6 ml of disodium ethylenediaminetetraacetic acid solution, add ammonia water or hydrochloric acid solution dropwise, adjust the pH to about 6 (test with pH test paper), then add 2.5 ml of ammonium acetate solution and 1 ml of hydroxylamine hydrochloride solution and shake well, immerse the beaker in a boiling water bath, add 4 ml of o-phenanthroline solution after two minutes, shake well, continue heating for 5 minutes, remove and cool. Transfer to a 50 ml volumetric flask, dilute with water to the scale, shake, place in a colorimetric tank, and measure the extinction value of the solution at a wavelength of 500-515 nanometers (when analyzing the sample, do a blank test at the same time). 2.5.5 Expression and calculation of results
The content of ferric oxide is calculated as follows:
Fe2O3%=
Wherein: A——the amount of iron measured by colorimetry, microgram, G——the weight of the sample, gram;
1.43——the coefficient for converting iron into ferric oxide. 2.6 Determination of copper oxide content
2.6.1 Reagents and solutions
Nitric acid (GB626-78): (superior purity): 1:1, 13 solution. Ammonia water (GB631-77): 1:1 solution. Ammonium acetate (GB1292-77).
Hydrogen peroxide (GB1616-79): 1:1 solution. Anhydrous ethanol (GB678-78).
Chloroform (GB682-78).
Pure copper (purity not less than 99.9%).
(5)
Ammonium acetate solution: Weigh 150 g of ammonium acetate, dissolve in distilled water and dilute to 500 ml, adjust the pH to about 4.5 with 11 nitric acid solution, add 5 ml of hydroxylamine hydrochloride solution, 5 ml of new cuprous spirit solution, and 5 ml of chloroform to extract and remove copper until the organic phase is colorless, discard the organic phase, and filter the aqueous phase with filter paper for later use. Hydroxylamine hydrochloride (HG3-967-76): 10% solution (freshly prepared) (remove copper according to the ammonium acetate method). New cuprous spirit: 0.1% anhydrous ethanol solution. 4
W.bzsoso.cOGB3677-—83
Copper standard solution: weigh 0.1 g of pure copper (accurate to 0.0002 g) and place it in a 200 ml beaker, add 10 ml of 1:1 nitric acid solution, slowly heat and dissolve, drive out nitrogen oxides, remove and cool, transfer to a 1000 ml volumetric flask, dilute to scale with water, accurately pipette 25 ml into a 500 ml volumetric flask, dilute to scale with water, shake well, and prepare a solution with 5 micrograms of copper per ml. 2.6.2 Main instruments
72 type spectrophotometer: light source voltage 10V/5.5V. Wavelength range 420700 nm.
Electro-optical analytical balance: maximum load 200 g, sensitivity 0.1 mg. 2.6.3 Drawing of standard curve
Take 0.00, 1.00, 2.00, 3.00, 4.00, 5.00 ml of copper standard solution respectively, place in a 125 ml separatory funnel, dilute with water to about 40 ml, add 5 ml of ammonium acetate solution, adjust pH to about 4.5 with 11 nitric acid solution or ammonia solution, add 2 ml of hydroxylamine hydrochloride solution, 2 ml of new cuprous solution, shake well and place for 5 minutes, add 10 ml of chloroform, shake for 1 minute, place the organic phase in a colorimetric tank after standing and stratifying, and measure the extinction value at a wavelength of 470 nm in turn. 2.6.4 Determination procedure
Weigh 1 gram of sample (accurate to 0.0002 g) and place in a 100 ml beaker, add 5 ml of 1:3 nitric acid solution, heat, and drop hydrogen peroxide solution to reduce until the solution becomes transparent. Remove nitrogen oxide, transfer to a 125 ml separatory funnel, dilute with water to about 40 ml, add 5 ml of ammonium acetate solution, adjust the pH to about 4.5 with 1:1 nitric acid or ammonia solution, add 2 ml of hydroxylamine hydrochloride solution, 2 ml of new cuprous acid solution, shake well, let stand for 5 minutes, add 10 ml of chloroform, shake for 1 minute, let stand for stratification, put the organic phase into a colorimetric tank, and measure the extinction value at a wavelength of 470 nanometers (when analyzing the sample, a blank test is also performed). 2.6.5 Expression and calculation of results
The copper oxide content is calculated according to the following formula:
Where: A-the amount of copper measured by colorimetry, microgram; G-the weight of the sample, grams;
1.25-the coefficient for converting copper into copper oxide. 2.7 Determination of sieve residue
Cu0%=4X25×100
According to Method A of GB1715-79 "Determination of pigment sieve residue". 2.8 Determination of moisture content
According to GB1714-79 "Determination of moisture content in pigments". 3 Inspection rules
3.1 The quality inspection department of the manufacturer shall be responsible for the inspection of the products to ensure that all products leaving the factory meet the requirements of this standard. Each batch of products leaving the factory shall be accompanied by a certificate of product grade.
3.2 The user shall inspect according to the inspection rules and test methods specified in this standard. If the inspection results do not meet this standard, the original batch number shall be re-sampled and re-tested according to twice the number of sampling barrels. 3.3 If both parties disagree with the re-test results, arbitration may be conducted, and the arbitration institution shall be selected by agreement between the two parties. 3.4 The sampling method is based on batches. For each batch of barrels, take all 1 to 2 barrels, 2 barrels for 38 barrels, 3 barrels for 9 to 25 barrels, 5 barrels for 26 to 100 barrels, 8 barrels for 101 to 500 barrels, 13 barrels for 501 to 1000 barrels, 20 barrels for 1001 to 3000 barrels, and 32 barrels for 3001 to 10000 barrels. Use a sampler to take 100 grams from the top and bottom of the barrel. If the number of barrels is small and the sample is insufficient, the sampling amount should be increased. Mix the sample, take an average sample of 0.5 kg by quartering, and divide it into two clean and dry ground-mouth bottles, affix labels, and indicate the manufacturer, product name, production date, grade, batch number, and sampling date. One bottle is for inspection, and the other bottle is sealed and stored for one year for re-inspection. 4 Packaging, marking, storage and transportation
W.bzsoso.coI4.1 Packaging
GB3677—83
Red lead is packaged in iron barrels lined with plastic bags or kraft paper bags, wooden boxes, and plastic woven bags, with net weights of 25, 40, and 50 kg respectively. 4.2 Marking
The barrel should have the manufacturer's name, product name, trademark, brand, grade, net weight, production date, and signs such as "caution to moisture", "handle with care", and "toxic".
4.3 Storage
Red lead should be stored in a dry place, moisture is strictly prohibited, and it should be stored separately from acidic and alkaline items. 4.4 Transportation
Be careful when handling, and do not cause collision or fall to avoid damage to the packaging. Additional remarks:
This standard was proposed by the National Technical Committee for Standardization of Paints and Pigments, and is under the jurisdiction of the National Technical Committee for Standardization of Paints and Pigments.
This standard was drafted by Shenyang Paint Factory, the leader of the national standard working group for red and yellow lead. The main drafters of this standard are Wang Jingfa, Tian Yazhen and Zhai Xiuyun. 6
W.5 ml and 1 ml of hydroxylamine hydrochloride solution, shake well, immerse the beaker in a boiling water bath, add 4 ml of o-phenanthroline solution after two minutes, shake well, continue heating for 5 minutes, remove and cool. Transfer to a 50 ml volumetric flask, add water to dilute to the scale, shake, place in a colorimetric tank, and measure the extinction value of the solution at a wavelength of 500-515 nanometers (when analyzing the sample, do a blank test at the same time). 2.5.5 Expression and calculation of results
The content of ferric oxide is calculated as follows:
Fe203%=
Where: A——the amount of iron measured by colorimetry, micrograms, G——the weight of the sample, grams;
1.43——the coefficient of converting iron into ferric oxide. 2.6 Determination of copper oxide content
2.6.1 Reagents and solutions
Nitric acid (GB626-78): (superior purity): 1:1, 13 solution. Ammonia (GB631-77): 1:1 solution. Ammonium acetate (GB1292-77).
Hydrogen peroxide (GB1616-79): 1:1 solution. Anhydrous ethanol (GB678-78).
Chloroform (GB682-78).
Pure copper (purity not less than 99.9%).
(5)
Ammonium acetate solution: Weigh 150 g of ammonium acetate, dissolve it in distilled water and dilute it to 500 ml, adjust the pH to about 4.5 with 11 nitric acid solution, add 5 ml of hydroxylamine hydrochloride solution, 5 ml of new cuprous acid solution, and 5 ml of chloroform to extract and remove copper until the organic phase is colorless, discard the organic phase, and filter the aqueous phase with filter paper for later use. Hydroxylamine hydrochloride (HG3-967-76): 10% solution (freshly prepared) (remove copper according to the ammonium acetate method). New cuprous spirit: 0.1% anhydrous ethanol solution. 4
W.bzsoso.cOGB3677-—83
Copper standard solution: weigh 0.1g of pure copper (accurate to 0.0002g) and place it in a 200ml beaker, add 10ml of 1:1 nitric acid solution, slowly heat and dissolve, drive out nitrogen oxides, remove and cool, transfer to a 1000ml volumetric flask, dilute to scale with water, accurately draw 25ml into a 500ml volumetric flask, dilute to scale with water, shake well, and prepare a solution with 5 micrograms of copper per milliliter. 2.6.2 Main instruments
72 type spectrophotometer: light source voltage 10V/5.5V. Wavelength range 420700nm.
Electro-optical analytical balance: maximum load 200g, sensitivity 0.1mg. 2.6.3 Drawing of standard curve
Take 0.00, 1.00, 2.00, 3.00, 4.00, 5.00 ml of copper standard solution respectively, place in a 125 ml separatory funnel, dilute with water to about 40 ml, add 5 ml of ammonium acetate solution, adjust pH to about 4.5 with 11 nitric acid solution or ammonia solution, add 2 ml of hydroxylamine hydrochloride solution, 2 ml of new cuprous solution, shake well and place for 5 minutes, add 10 ml of chloroform, shake for 1 minute, place the organic phase in a colorimetric tank after standing and stratifying, and measure the extinction value at a wavelength of 470 nm in turn. 2.6.4 Determination procedure
Weigh 1 gram of sample (accurate to 0.0002 g) and place in a 100 ml beaker, add 5 ml of 1:3 nitric acid solution, heat, and drop hydrogen peroxide solution to reduce until the solution becomes transparent. Remove nitrogen oxide, transfer to a 125 ml separatory funnel, dilute with water to about 40 ml, add 5 ml of ammonium acetate solution, adjust the pH to about 4.5 with 1:1 nitric acid or ammonia solution, add 2 ml of hydroxylamine hydrochloride solution, 2 ml of new cuprous acid solution, shake well, let stand for 5 minutes, add 10 ml of chloroform, shake for 1 minute, let stand for stratification, put the organic phase into a colorimetric tank, and measure the extinction value at a wavelength of 470 nanometers (when analyzing the sample, a blank test is also performed). 2.6.5 Expression and calculation of results
The copper oxide content is calculated according to the following formula:
Where: A-the amount of copper measured by colorimetry, microgram; G-the weight of the sample, grams;
1.25-the coefficient for converting copper into copper oxide. 2.7 Determination of sieve residue
Cu0%=4X25×100
According to Method A of GB1715-79 "Determination of pigment sieve residue". 2.8 Determination of moisture content
According to GB1714-79 "Determination of moisture content in pigments". 3 Inspection rules
3.1 The quality inspection department of the manufacturer shall be responsible for the inspection of the products to ensure that all products leaving the factory meet the requirements of this standard. Each batch of products leaving the factory shall be accompanied by a certificate of product grade.
3.2 The user shall inspect according to the inspection rules and test methods specified in this standard. If the inspection results do not meet this standard, the original batch number shall be re-sampled and re-tested according to twice the number of sampling barrels. 3.3 If both parties disagree with the re-test results, arbitration may be conducted, and the arbitration institution shall be selected by agreement between the two parties. 3.4 The sampling method is based on batches. For each batch of barrels, take all 1 to 2 barrels, 2 barrels for 38 barrels, 3 barrels for 9 to 25 barrels, 5 barrels for 26 to 100 barrels, 8 barrels for 101 to 500 barrels, 13 barrels for 501 to 1000 barrels, 20 barrels for 1001 to 3000 barrels, and 32 barrels for 3001 to 10000 barrels. Use a sampler to take 100 grams from the top and bottom of the barrel. If the number of barrels is small and the sample is insufficient, the sampling amount should be increased. Mix the sample, take an average sample of 0.5 kg by quartering, and divide it into two clean and dry ground-mouth bottles, affix labels, and indicate the manufacturer, product name, production date, grade, batch number, and sampling date. One bottle is for inspection, and the other bottle is sealed and stored for one year for re-inspection. 4 Packaging, marking, storage and transportation
W.bzsoso.coI4.1 Packaging
GB3677—83
Red lead is packaged in iron barrels lined with plastic bags or kraft paper bags, wooden boxes, and plastic woven bags, with net weights of 25, 40, and 50 kg respectively. 4.2 Marking
The barrel should have the manufacturer's name, product name, trademark, brand, grade, net weight, production date, and signs such as "caution to moisture", "handle with care", and "toxic".
4.3 Storage
Red lead should be stored in a dry place, moisture is strictly prohibited, and it should be stored separately from acidic and alkaline items. 4.4 Transportation
Be careful when handling, and do not cause collision or fall to avoid damage to the packaging. Additional remarks:
This standard was proposed by the National Technical Committee for Standardization of Paints and Pigments, and is under the jurisdiction of the National Technical Committee for Standardization of Paints and Pigments.
This standard was drafted by Shenyang Paint Factory, the leader of the national standard working group for red and yellow lead. The main drafters of this standard are Wang Jingfa, Tian Yazhen and Zhai Xiuyun. 6
W.5 ml and 1 ml of hydroxylamine hydrochloride solution, shake well, immerse the beaker in a boiling water bath, add 4 ml of o-phenanthroline solution after two minutes, shake well, continue heating for 5 minutes, remove and cool. Transfer to a 50 ml volumetric flask, add water to dilute to the scale, shake, place in a colorimetric tank, and measure the extinction value of the solution at a wavelength of 500-515 nanometers (when analyzing the sample, do a blank test at the same time). 2.5.5 Expression and calculation of results
The content of ferric oxide is calculated as follows:
Fe203%=
Where: A——the amount of iron measured by colorimetry, micrograms, G——the weight of the sample, grams;
1.43——the coefficient of converting iron into ferric oxide. 2.6 Determination of copper oxide content
2.6.1 Reagents and solutions
Nitric acid (GB626-78): (superior purity): 1:1, 13 solution. Ammonia (GB631-77): 1:1 solution. Ammonium acetate (GB1292-77).
Hydrogen peroxide (GB1616-79): 1:1 solution. Anhydrous ethanol (GB678-78).
Chloroform (GB682-78).
Pure copper (purity not less than 99.9%).
(5)
Ammonium acetate solution: Weigh 150 g of ammonium acetate, dissolve it in distilled water and dilute it to 500 ml, adjust the pH to about 4.5 with 11 nitric acid solution, add 5 ml of hydroxylamine hydrochloride solution, 5 ml of new cuprous acid solution, and 5 ml of chloroform to extract and remove copper until the organic phase is colorless, discard the organic phase, and filter the aqueous phase with filter paper for later use. Hydroxylamine hydrochloride (HG3-967-76): 10% solution (freshly prepared) (remove copper according to the ammonium acetate method). New cuprous spirit: 0.1% anhydrous ethanol solution. 4
W.bzsoso.cOGB3677-—83
Copper standard solution: weigh 0.1g of pure copper (accurate to 0.0002g) and place it in a 200ml beaker, add 10ml of 1:1 nitric acid solution, slowly heat and dissolve, drive out nitrogen oxides, remove and cool, transfer to a 1000ml volumetric flask, dilute to scale with water, accurately draw 25ml into a 500ml volumetric flask, dilute to scale with water, shake well, and prepare a solution with 5 micrograms of copper per milliliter. 2.6.2 Main instruments
72 type spectrophotometer: light source voltage 10V/5.5V. Wavelength range 420700nm.
Electro-optical analytical balance: maximum load 200g, sensitivity 0.1mg. 2.6.3 Drawing of standard curve
Take 0.00, 1.00, 2.00, 3.00, 4.00, 5.00 ml of copper standard solution respectively, place in a 125 ml separatory funnel, dilute with water to about 40 ml, add 5 ml of ammonium acetate solution, adjust pH to about 4.5 with 11 nitric acid solution or ammonia solution, add 2 ml of hydroxylamine hydrochloride solution, 2 ml of new cuprous solution, shake well and place for 5 minutes, add 10 ml of chloroform, shake for 1 minute, place the organic phase in a colorimetric tank after standing and stratifying, and measure the extinction value at a wavelength of 470 nm in turn. 2.6.4 Determination procedure
Weigh 1 gram of sample (accurate to 0.0002 g) and place in a 100 ml beaker, add 5 ml of 1:3 nitric acid solution, heat, and drop hydrogen peroxide solution to reduce until the solution becomes transparent. Remove nitrogen oxide, transfer to a 125 ml separatory funnel, dilute with water to about 40 ml, add 5 ml of ammonium acetate solution, adjust the pH to about 4.5 with 1:1 nitric acid or ammonia solution, add 2 ml of hydroxylamine hydrochloride solution, 2 ml of new cuprous acid solution, shake well, let stand for 5 minutes, add 10 ml of chloroform, shake for 1 minute, let stand for stratification, put the organic phase into a colorimetric tank, and measure the extinction value at a wavelength of 470 nanometers (when analyzing the sample, a blank test is also performed). 2.6.5 Expression and calculation of results
The copper oxide content is calculated according to the following formula:
Where: A-the amount of copper measured by colorimetry, microgram; G-the weight of the sample, grams;
1.25-the coefficient for converting copper into copper oxide. 2.7 Determination of sieve residue
Cu0%=4X25×100
According to Method A of GB1715-79 "Determination of pigment sieve residue". 2.8 Determination of moisture content
According to GB1714-79 "Determination of moisture content in pigments". 3 Inspection rules
3.1 The quality inspection department of the manufacturer shall be responsible for the inspection of the products to ensure that all products leaving the factory meet the requirements of this standard. Each batch of products leaving the factory shall be accompanied by a certificate of product grade.
3.2 The user shall inspect according to the inspection rules and test methods specified in this standard. If the inspection results do not meet this standard, the original batch number shall be re-sampled and re-tested according to twice the number of sampling barrels. 3.3 If both parties disagree with the re-test results, arbitration may be conducted, and the arbitration institution shall be selected by agreement between the two parties. 3.4 The sampling method is based on batches. For each batch of barrels, take all 1 to 2 barrels, 2 barrels for 38 barrels, 3 barrels for 9 to 25 barrels, 5 barrels for 26 to 100 barrels, 8 barrels for 101 to 500 barrels, 13 barrels for 501 to 1000 barrels, 20 barrels for 1001 to 3000 barrels, and 32 barrels for 3001 to 10000 barrels. Use a sampler to take 100 grams from the top and bottom of the barrel. If the number of barrels is small and the sample is insufficient, the sampling amount should be increased. Mix the sample, take an average sample of 0.5 kg by quartering, and divide it into two clean and dry ground-mouth bottles, affix labels, and indicate the manufacturer, product name, production date, grade, batch number, and sampling date. One bottle is for inspection, and the other bottle is sealed and stored for one year for re-inspection. 4 Packaging, marking, storage and transportation
W.bzsoso.coI4.1 Packaging
GB3677—83
Red lead is packaged in iron barrels lined with plastic bags or kraft paper bags, wooden boxes, and plastic woven bags, with net weights of 25, 40, and 50 kg respectively. 4.2 Marking
The barrel should have the manufacturer's name, product name, trademark, brand, grade, net weight, production date, and signs such as "caution to moisture", "handle with care", and "toxic".
4.3 Storage
Red lead should be stored in a dry place, moisture is strictly prohibited, and it should be stored separately from acidic and alkaline items. 4.4 Transportation
Be careful when handling, and do not cause collision or fall to avoid damage to the packaging. Additional remarks:
This standard was proposed by the National Technical Committee for Standardization of Paints and Pigments, and is under the jurisdiction of the National Technical Committee for Standardization of Paints and Pigments.
This standard was drafted by Shenyang Paint Factory, the leader of the national standard working group for red and yellow lead. The main drafters of this standard are Wang Jingfa, Tian Yazhen and Zhai Xiuyun. 6
W.5 volts. Wavelength range 420700 nanometers.
Electro-optical analytical balance: maximum load 200 grams, sensitivity 0.1 mg. 2.6.3 Drawing of standard curve
Take 0.00, 1.00, 2.00, 3.00, 4.00, 5.00 ml of copper standard solution respectively, place in a 125 ml separatory funnel, dilute with water to about 40 ml, add 5 ml of ammonium acetate solution, adjust pH to about 4.5 with 11 nitric acid solution or ammonia solution, add 2 ml of hydroxylamine hydrochloride solution, 2 ml of new cuprous solution, shake well and place for 5 minutes, add 10 ml of chloroform, shake for 1 minute, let stand and separate, then place the organic phase in a colorimetric tank, and measure the extinction value at a wavelength of 470 nanometers in turn. 2.6.4 Determination Procedures
Weigh 1 gram of the sample (accurate to 0.0002 grams) and place it in a 100 ml beaker, add 5 ml of 1:3 nitric acid solution, heat, and drop hydrogen peroxide solution to reduce the solution until it becomes transparent. Remove nitrogen oxides, transfer to a 125 ml separatory funnel, dilute with water to about 40 ml, add 5 ml of ammonium acetate solution, adjust the pH to about 4.5 with 1:1 nitric acid or ammonia solution, add 2 ml of hydroxylamine hydrochloride solution and 2 ml of new cuprous solution, shake well, let stand for 5 minutes, add 10 ml of chloroform, shake for 1 minute, let stand and separate, then place the organic phase in a colorimetric tank, and measure the extinction value at a wavelength of 470 nanometers (when analyzing the sample, perform a blank test at the same time). 2.6.5 Expression and calculation of results
The copper oxide content is calculated according to the following formula:
Wherein: A--the amount of copper measured by colorimetry, microgram; G--the weight of the sample, gram;
1.25--the coefficient for converting copper into copper oxide. 2.7 Method for determination of sieve residue
Cu0%=4X25×100
According to Method A of GB1715-79 "Method for determination of pigment sieve residue". 2.8 Method for determination of moisture content
According to GB1714-79 "Method for determination of moisture content in pigments". 3 Inspection rules
3.1 The quality inspection department of the manufacturer shall be responsible for the inspection of the products to ensure that all the products leaving the factory meet the requirements of this standard. Each batch of products leaving the factory shall be accompanied by a certificate of product grade.
3.2 The user shall conduct inspections according to the inspection rules and test methods specified in this standard. If the test results do not meet this standard, re-sampling should be conducted in the original batch number according to the number of sampling barrels with twice the amount. 3.3 If the two parties disagree with the re-test results, arbitration can be conducted, and the arbitration institution shall be selected by agreement between the two parties. 3.4 The sampling method is based on batches. For each batch of barrels, take all 1 to 2 barrels, 2 barrels for 38 barrels, 3 barrels for 9 to 25 barrels, 5 barrels for 26 to 100 barrels, 8 barrels for 101 to 500 barrels, 13 barrels for 5011000 barrels, 20 barrels for 10013000 barrels, and 32 barrels for 300110000 barrels. Use a sampler to take 100 grams from the top and bottom of the barrel. If the number of barrels is small and the sample is insufficient, the sampling volume should be increased. Mix the sample, take an average sample of 0.5 kg by quartering, and divide it into two clean and dry ground-mouth bottles, and label them with the manufacturer, product name, production date, grade, batch number, and sampling date. One bottle is for inspection, and the other bottle is sealed and stored for one year for re-inspection. 4 Packaging, marking, storage and transportation
W.bzsoso.coI4.1 Packaging
GB3677-83
Red lead is packaged in iron barrels lined with plastic bags or kraft paper bags, wooden boxes, and plastic woven bags, with net weights of 25, 40, and 50 kg respectively. 4.2 Marking
The barrel should have the manufacturer's name, product name, trademark, brand, grade, net weight, production date, and signs such as "Caution for moisture", "Handle with care", and "Toxic".
4.3 Storage
Red lead should be stored in a dry place, moisture is strictly prohibited, and it should be stored separately from acidic and alkaline items. 4.4 Transportation
Be careful when carrying it, and do not let it collide or fall, so as to avoid damage to the packaging. Additional Notes:
This standard was proposed by the National Technical Committee for Standardization of Paints and Pigments, and is under the jurisdiction of the National Technical Committee for Standardization of Paints and Pigments.
This standard was drafted by the Shenyang Paint Factory, the leader of the national standard working group for red and yellow lead. The main drafters of this standard are Wang Jingfa, Tian Yazhen, and Zhai Xiuyun. 6
W.5 volts. Wavelength range 420700 nanometers.
Electro-optical analytical balance: maximum load 200 grams, sensitivity 0.1 mg. 2.6.3 Drawing of standard curve
Take 0.00, 1.00, 2.00, 3.00, 4.00, 5.00 ml of copper standard solution respectively, place in a 125 ml separatory funnel, dilute with water to about 40 ml, add 5 ml of ammonium acetate solution, adjust pH to about 4.5 with 11 nitric acid solution or ammonia solution, add 2 ml of hydroxylamine hydrochloride solution, 2 ml of new cuprous solution, shake well and place for 5 minutes, add 10 ml of chloroform, shake for 1 minute, let stand and separate, then place the organic phase in a colorimetric tank, and measure the extinction value at a wavelength of 470 nanometers in turn. 2.6.4 Determination Procedures
Weigh 1 gram of the sample (accurate to 0.0002 grams) and place it in a 100 ml beaker, add 5 ml of 1:3 nitric acid solution, heat, and drop hydrogen peroxide solution to reduce the solution until it becomes transparent. Remove nitrogen oxides, transfer to a 125 ml separatory funnel, dilute with water to about 40 ml, add 5 ml of ammonium acetate solution, adjust the pH to about 4.5 with 1:1 nitric acid or ammonia solution, add 2 ml of hydroxylamine hydrochloride solution and 2 ml of new cuprous solution, shake well, let stand for 5 minutes, add 10 ml of chloroform, shake for 1 minute, let stand and separate, then place the organic phase in a colorimetric tank, and measure the extinction value at a wavelength of 470 nanometers (when analyzing the sample, perform a blank test at the same time). 2.6.5 Expression and calculation of results
The copper oxide content is calculated according to the following formula:
Wherein: A--the amount of copper measured by colorimetry, microgram; G--the weight of the sample, gram;
1.25--the coefficient for converting copper into copper oxide. 2.7 Method for determination of sieve residue
Cu0%=4X25×100
According to Method A of GB1715-79 "Method for determination of pigment sieve residue". 2.8 Method for determination of moisture content
According to GB1714-79 "Method for determination of moisture content in pigments". 3 Inspection rules
3.1 The quality inspection department of the manufacturer shall be responsible for the inspection of the products to ensure that all the products leaving the factory meet the requirements of this standard. Each batch of products leaving the factory shall be accompanied by a certificate of product grade.
3.2 The user shall conduct inspections according to the inspection rules and test methods specified in this standard. If the test results do not meet this standard, re-sampling should be conducted in the original batch number according to the number of sampling barrels with twice the amount. 3.3 If the two parties disagree with the re-test results, arbitration can be conducted, and the arbitration institution shall be selected by agreement between the two parties. 3.4 The sampling method is based on batches. For each batch of barrels, take all 1 to 2 barrels, 2 barrels for 38 barrels, 3 barrels for 9 to 25 barrels, 5 barrels for 26 to 100 barrels, 8 barrels for 101 to 500 barrels, 13 barrels for 5011000 barrels, 20 barrels for 10013000 barrels, and 32 barrels for 300110000 barrels. Use a sampler to take 100 grams from the top and bottom of the barrel. If the number of barrels is small and the sample is insufficient, the sampling volume should be increased. Mix the sample, take an average sample of 0.5 kg by quartering, and divide it into two clean and dry ground-mouth bottles, and label them with the manufacturer, product name, production date, grade, batch number, and sampling date. One bottle is for inspection, and the other bottle is sealed and stored for one year for re-inspection. 4 Packaging, marking, storage and transportation
W.bzsoso.coI4.1 Packaging
GB3677-83
Red lead is packaged in iron barrels lined with plastic bags or kraft paper bags, wooden boxes, and plastic woven bags, with net weights of 25, 40, and 50 kg respectively. 4.2 Marking
The barrel should have the manufacturer's name, product name, trademark, brand, grade, net weight, production date, and signs such as "Caution for moisture", "Handle with care", and "Toxic".
4.3 Storage
Red lead should be stored in a dry place, moisture is strictly prohibited, and it should be stored separately from acidic and alkaline items. 4.4 Transportation
Be careful when carrying it, and do not let it collide or fall, so as to avoid damage to the packaging. Additional Notes:
This standard was proposed by the National Technical Committee for Standardization of Paints and Pigments, and is under the jurisdiction of the National Technical Committee for Standardization of Paints and Pigments.
This standard was drafted by the Shenyang Paint Factory, the leader of the national standard working group for red and yellow lead. The main drafters of this standard are Wang Jingfa, Tian Yazhen, and Zhai Xiuyun. 6
W.
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