Some standard content:
Classification number X42
Light Industry Standard of the People's Republic of China
QB/T3783-1999
Food Additives
Sodium Copper Chlorophyllin
Published on April 21, 1999
State Bureau of Light Industry
Implemented on April 21, 1999
QB3783-1999
Wood Standard Products Original Shangjia Standard GB3262-1982 (Food Additives Chlorophylline copper sodium salt>, converted into QB3783-1999 by the National Light Industry Bureau (1999] No. 112 document, the content is the same as above. Technical standard issued by the Ministry of Health of the People's Republic of China and the Ministry of Light Industry of the People's Republic of China. This standard is issued by the National Food Processing Center and the Food Safety Inspection Institute of the Chinese Academy of Medical Sciences. This standard was drafted by the Jiangsu Provincial Health and Epidemic Prevention Station, and the main authors of this standard are: Ming Renjie and Chen Yuehua. Light Industry Industry Standard of the People's Republic of China||tt| |Food Additives
Sodium Copper Chlorophyllin
QET3783-1089
Replacement GB3262--1985bZxz.net
Standard is applicable to the sodium salt of chlorophyllin obtained by organic extract (i.e. silkworm cysts) and monochlorolysis and copper substitution, and is used as a colorant in the food industry.
Trisodium Chlorophyllin CaiO,,CNaa
Disodium Chlorophyllin CHnOaN
1 Technical Requirements
1.1 Appearance
This product is a black powder. It is easy to dissolve in water and slightly soluble in alcohol and water. The liquid is transparent and has no sedimentation. 1.2 Items and Indicators ||tt| ... :
is a dark green precipitate. It is soluble in water, slightly inferior to ethyl acetate, and slightly soluble in ethyl acetate. It is alkanal (eH6, below). If calcium ions are present, a precipitate will be precipitated.
2.1.2 Determination of absorption peak
Take 0.1% of the sample and dissolve it in water, and dilute it to 100ml. The maximum absorption peak of this solution is 403mm and B30nm, and the extinction value ratio Eg05m/263Dmm is 3.2-4.0.
1.1 Copper sodium ion test
burn the sample After ashing, dissolve in 10t13V hydrochloric acid, heat on a water bath to dissolve, filter and dilute to 10ml, use this as a test, and conduct the following test.
, take the test filter for flame color test. It will be blank at first, and then turn pale. Approved by the State Bureau of Light Industry on April 21, 1999
Implemented on April 21, 1999
QR/T3783-1999
b, amine test solution ml, add 0.5m of 0.15 sodium diethyl disulfide formaldehyde solution, and a red precipitate will be produced. 2.2 pH
Add the sample to 1% narrow-band distilled water and use an acidometer to determine the pH to be 9.0-10.7. 2.3 Determination of percent extinction coefficient and extinction ratio of sodium copper chlorophyll salt 2.3.1 Preparation of reagents and buffer: (pH 7.5) mix 31 parts of 0.15 M sodium hyaluronate (GB1263-7744) and 4 parts of 0.15 M sodium dextrose (GB1263-7744) 2.3.2 Micrometer apparatus
751 spectrophotometer.
Instrument calibration method:
Preparation of standard solution:
Dissolve 20g of sodium sulfoxide (CuS03:5F1,0) in water, add 10ml of mercaptan and dilute it with 100ml of water, and use water as the air limit.
Use 1cm comparison cup in spectrophotometer to determine: length (m>
is positive value.
Extinction value
1005% or less
b, strong potassium (K, Cr0) (HG3-9187): pure, 0.05Mg. with 0.55N potassium oxide solution and 13mm l of 0.05 irradiation solution with water as reference, m colorimetric spectrophotometer on the same period. Reduction length (mn>
is positive value.
Extinction value
× 10= 5 % or less
0.2%
2.3.3 Determination method
Weigh a sample dried at 05℃+1%:0.E (accurate to 0.0002g), dehydrate it, and transfer it to the water scale in a 100mL bottle. Then add the water to pH7.5 buffer and reduce the concentration by 100 times, that is, 0.001% solution, and measure it with a spectrophotometer. Within 15 minutes, use a colorimetric cup of 1% at 45 and 63 nm to measure the extinction value (), and use the buffer as a blank control. 2.3.4 Calculation formula
Wushan: 1000
1% 405 nm = extinction value × (ckooc
Sample [mg converted to 1 k coefficient.
Extinction ratio 3
2.4 Determination of total steel content
2:4.1 Reagents and solutions
Etaonn
Nitric acid (CB62G-78) pure
Nutrient (GR625-77), high purity, specific gravity 1.835: (1)
Ammonium citrate sulfonate·ethylene disulfate disodium solution: 20g of ethylene disulfate and 20g of ethylene disulfate. Sodium [GB1401-78] 5s dissolved in 100ml water
According to (GB625-77): 2N filtered
Hydrogenated water (GB631-77): analytically pure, 11% free solution Phenol red (HG3-959-76): 0.1% free solution 2
QB/T3783-1999
2-hydroxy-2-methyl-1-2-oxo-1-hydroxy ... Storage in refrigerator can be used for one week. Carbon tetrachloride (GBB8-79), chemically pure, or chloroform (GB682-78): analytically pure: Silver standard test wave: Freeze-induced sulfur-sensitive copper (GB665-78, analytically pure) 0.1964%, add 2N tris(III) acid to dissolve and make up to 500ml, and dilute it by multiples, each liter is equivalent to 10 copper. 2.4.2 Recording method
2.4.2.1 Sample pretreatment
Take sample D. 1 (n02g) in a 5m0m Kjeldahl flask, add a little water to moisten, add 15ml nitric acid, leave for a while, add 5ml sulfuric acid, when the liquid in the flask turns brown, continue to add sulphuric acid drop by drop until all the substances are decomposed, the liquid should turn blue, cool, add 10ml water, continue to heat to remove the excess acid, until self-adjustment is produced, then maintain for 5 minutes, cool, set to 1:1, and keep 1 liter of the above-mentioned digestion solution for use, mix with sample every time. 2.4.2.2 Determination method
Absorb 20ml of the above digestion solution, set aside and add 125ml of it. Separately, take 0, 0.5, 1.0, 1.5, 2.0, 2.5ml (equivalent to 9, 10, 15, 20, 25μg) of standard solution and set aside in 12m3 flasks. Add 2N to 2ml of sample and standard solution, add 5ml of disodium acetaldehyde solution to each of the lemon and 1ml of red indicator, mix well, adjust to 1:1 with water (that is, red becomes empty), add 1ml of oxygen as needed, brush the end of a micropipette for 3 minutes, set the value of the solution to 2cm in a colorimetric circle, adjust the zero point with a micropipette, report 440° extinction signal, and verify the standard line. 2.4.2.3 Calculate the width of the column: 2.5 Source of copper determination 2.5.1 Reagents and liquid age (GB22-77): 1ml of total copper determination.
×1eU×t05
2.5.2 Operation method
2.5.2.1 Sample preparation: weigh 0.1g of finished product, add about 1ml of solution. Add 1N to pH 1.0 and make up to 10.1ml.
2.5.2.2 Determination method: same as above.
2.5.2.a+2.
Height 3
In the formula:
Weight, 5:
Determination volume, ml,
Dissolution volume, ml:
. Sample preparation micro-point
2.6 Determination of content
2.6.1 Reagents and solutions
Hydrochloric acid (GHB22-77): analytically pure,
Nitric acid (GB626-78): analytically pure: Fluoric acid ((625-77): super pure, 1:1 solution: 3
H×jc
×G×Du
QE/T3783-1999
Potassium chloride (GB1272-77), analytically pure, 16.5% solution Substrate (GB638.-78): analytically pure, dissolved in 40% hydrochloric acid, potassium free metal lead (HGB3073-59), analytically pure) Lead acetate is prepared according to GB603-77 (Preparation Methods for Preparation of Preparations and Products) and the standard solution is prepared according to the preparation method of GB62-77 impurity standard solution, and used after dilution 100 times. 1ml is equivalent to 0.G01thg
2. Clinical 2 Determination Procedures
Weigh 5g of sample (accurate to 0.1g) and put it into a 50ml bottle, add appropriate amount of water to dissolve it, add 15ml of acetic acid, let it stand for a while, add 10ml of acetic acid, test the color. When the body in the bottle begins to change or dye, continue to add acetic acid to the bottle wall to dissolve the blue to blue-green, cool it, add water to about 59mF, and heat it again for 5 to 10 minutes. Transfer to a 100 ml volumetric flask, cool to 400 °C, and place the above sample in a 1 ml volumetric flask. Add 0.2 ml, 4.0 ml, 6.0 ml, 8.0 ml, and 10.0 ml (equivalent to 0.2, 4.0, 6.0, 8.0, and 19 g) of water to 150 ml. Add 1 ml of water to 1 ml. In the sample digestion, add 3ml of 6.5% iodine solution and 1ml of blue sodium chloride solution to each of the test solution and the standard solution, mix and incubate for 15 minutes. Add 5ml of iodine solution and place the end of the curved tube into a test tube containing 1l of saline solution. After the reaction is under room temperature for 4 hours, remove the test tube, add 4ml of water and transfer to a colorimetric tube to adjust the extinction value. 2.6.3 Calculation of the content of lead in the determination of lead content, where: The total amount of sample digested is ml, the amount of lead in the determination is m. 2.7 Determination of lead content 2.7.1 Reagents and solutions (GB631-77): 1:1, 1:1, 1:1. × 1000
Saline ether (GH 622-77): 6 N tumour solution
phenol red (1G3--959-76): 01 ethyl acetate solution; analytical grade, 21 solution
Amine (H3-967-76): chemically pure, 20 solution: chemically pure, solution
Oxygen nitrate (G682-78): analytically pure
Nitric acid (GB626-78): analytically pure, 1% solution: bisphenol A (HG3343-6U): analytically pure, weigh 50 mg of bisphenol A and add the total amount to 100 ml. Take this as the stock solution, take 1.5ml of this solution, dilute it to 100ml with chloroform, and the transmittance of this solution is about 70 points when measured by a spectrophotometer at a wavelength of 510nm. The double-research cross-application solution is prepared (0% transmittance):
y-_10(2-tg70)
In the formula, V
is the number of liters of sulfur-free stock solution;
…is the extinction value of the double-research cross-application solution at a wavelength of 510nm. 1.55
QB/T3783-1999
The lead standard solution (prepared according to GB602-77) needs to be diluted 10 times before use. 1ml is equivalent to 0.91mg. 2.t-2 Determination procedure
Securely pipette 20ml of the sample digestion solution prepared in the above determination (equivalent to 1g of sample) and the same amount of reagent blank solution, place them in 125ml separating funnels respectively, add water to 20ml each. Separately pipette 0, 0.1, 0.2, 0.8, 0.4, 0.5ml of lead standard solution (equivalent to 0, 1, 2, 3.1, 5g of lead) and place them in 12ml separating funnels respectively, add 1% tartaric acid to 20ml each, add 20% ferric citrate solution 2ml, 20% salicylic acid solution 1ml, 2 drops of phenol red indicator solution to the sample digestion solution, reagent blank solution and lead standard solution respectively, adjust to red with water, add 10% mouse calcium sulfate solution 2 drops to each group and mix. Add 5 μl of double vegetable trace application liquid to each sample, let it sit for 1 minute, and after standing for 2 minutes, add the new liquid to a 100 μm colorimetric cup, adjust the zero point with a 0.05 μl tube, measure the extinction value at a wavelength of 51 nm, and draw a standard curve for comparison.
2.7.3 Calculation of the content of the sample (rmg/kg)
g
W ... Calculate
1% of the weight of the sample
In the formula, the addition of the test sample is:
G-add,;
G-. Sample weight, g.
2.9 Determination of sulfuric acid ash
2.9.1 Reagents and solutions
Sulfuric acid (GB625-7): 5% analysis:
2.9.2 Determination procedure
Gi - G2
Weigh sample 1 (accurately weigh 6.015 grams of carbonized chicken, cool, be careful not to add sludge. 51m, the other is not sufficiently moist, all known, then heat in a high temperature environment to completely destroy or convert into, and report the weight. 2.9.3 Calculate
sulfuric acid content
, and
W—sample weight.
3 Acceptance rules
3.1 This product shall be inspected by the technical control and supervision department of the manufacturer. The manufacturer shall ensure that all products shipped out of the factory meet the requirements of this standard. Each product shipped out of the factory shall be accompanied by a quality certificate. 3.2 The user has the right to inspect the quality of the received products in accordance with the inspection rules and test methods specified in this standard to check whether its indicators meet the requirements of this standard.
QBT 3783—1999
8. Sampling method: Each sample is sampled by the five-bottle method. Take 10 samples from each bottle, mix the selected samples quickly, and pack them into two sterilized and dried wide-mouth bottles with ground seals. A label is attached on the bottle indicating the manufacturer name, product name, sample number, and sampling date. One bottle is sent to the laboratory branch, and the other is kept for 6 months for further analysis. 3. If one indicator in the inspection does not meet the requirements of this standard, a sample should be selected from two bottles with the same packaging for re-inspection. If only one indicator of the product meets the requirements of this standard, the whole product cannot be accepted. 5. When the supply and demand parties have objections to the product and need arbitration, they can consult with each other. Select an arbitration unit and carry out the inspection according to the acceptance and inspection methods specified in this standard.
Packaging, marking, storage and transportation
4.1 Sodium copper chlorophyll salt is packed in brown bottles, with a net weight of 0.1~0.5kg per bottle. 2 Each bottle of sodium copper chlorophyll salt has instructions. The instructions include: manufacturer name, product name, batch number, production date, technical conditions, usage, storage conditions, and the words "food additive". 4.1 After sodium copper chlorophyll salt is bottled, it is packed in a box, and each box is labeled with the manufacturer name, product name, label, batch number, production date, net weight (kg), number of bottles, storage conditions, and product compliance with this standard. 4.4 Sodium copper chlorophyll salt is stored in a dark, shaded, and dry place, sealed, and no foreign substances are allowed to mix. 4.5 During the loading process, the goods should be shipped carefully and gently. Do not put them down, and do not allow them to be mixed with hanging objects during loading.1g) is placed in a 50ml bottle, water is used to dissolve it, 15ml of caustic soda is added, after a while, 10ml of chlorinated acid is added, and the color of the sample is light. When the sample in the bottle begins to change or stain, the caustic soda is continuously added to the bottle wall to dissolve the blue to blue-green color, and the solution is cooled effectively. Water is added to about 59mF, and then heated to 5-10 minutes. Cool and transfer to a 1000% liquid bottle, and cool to 500°C. Take the above sample and digest it in 1ml bottles. In addition, 0, 2, 4, 6, 8, 19g of the sample are placed in 150ml bottles or incubators respectively. Add water to 100°C and fold. , add 1 ml of the sample digestion solution, add 3 ml of 6.5% iodine solution and 1 ml of blue chloride solution respectively, mix and incubate for 15 minutes. Add 5 ml of acetic acid solution to the glass tube, and place the end of the curved tube into the test tube containing 1 l of saline solution. After the reaction in the chamber for 4 hours, remove the test tube, add 4 ml of the colorimetric solution to adjust the extinction point, and compare the measured extinction values.
2.6.3 Calculation of the content of the digestion test sample,
Where:
is the total amount of sample digested, ml
is the digestion test sample, m.
2.7 Determination of lead content
2.7.1 Reagents and solutions
Rehydration (GB631-77): 1:1 distilled water: -# × 1000
Saline (GH 622-77): 6 N HCl
Phenol red (1G3-959-76): 0.1 ethyl acetate solution; analytical grade, 2:1 solution
Amine (H3-967-76): chemically pure, 20% solution
Oxygen nitrate (G682-78): analytically pure
Nitric acid (GB626-78): analytically pure, 1% solution: bisphenol A (HG3343-6U): analytically pure, weigh 50 mg of bisphenol A and add the total amount to 100 ml. Take this as the stock solution, take 1.5ml of this solution, dilute it to 100ml with chloroform, and the transmittance of this solution is about 70 points when measured by a spectrophotometer at a wavelength of 510nm. The double-research cross-application solution is prepared (0% transmittance):
y-_10(2-tg70)
In the formula, V
is the number of liters of sulfur-free stock solution;
…is the extinction value of the double-research cross-application solution at a wavelength of 510nm. 1.55
QB/T3783-1999
The lead standard solution (prepared according to GB602-77) needs to be diluted 10 times before use. 1ml is equivalent to 0.91mg. 2.t-2 Determination procedure
Securely pipette 20ml of the sample digestion solution prepared in the above determination (equivalent to 1g of sample) and the same amount of reagent blank solution, place them in 125ml separating funnels respectively, add water to 20ml each. Separately pipette 0, 0.1, 0.2, 0.8, 0.4, 0.5ml of lead standard solution (equivalent to 0, 1, 2, 3.1, 5g of lead) and place them in 12ml separating funnels respectively, add 1% tartaric acid to 20ml each, add 20% ferric citrate solution 2ml, 20% salicylic acid solution 1ml, 2 drops of phenol red indicator solution to the sample digestion solution, reagent blank solution and lead standard solution respectively, adjust to red with water, add 10% mouse calcium sulfate solution 2 drops to each group and mix. Add 5 μl of double vegetable trace application liquid to each sample, let it sit for 1 minute, and after standing for 2 minutes, add the new liquid to a 100 μm colorimetric cup, adjust the zero point with a 0.05 μl tube, measure the extinction value at a wavelength of 51 nm, and draw a standard curve for comparison.
2.7.3 Calculation of the content of the sample (rmg/kg)
g
W ... Calculate
1% of the weight of the sample
In the formula, the addition of the test sample is:
G-add,;
G-. Sample weight, g.
2.9 Determination of sulfuric acid ash
2.9.1 Reagents and solutions
Sulfuric acid (GB625-7): 5% analysis:
2.9.2 Determination procedure
Gi - G2
Weigh sample 1 (accurately weigh 6.015 grams of carbonized chicken, cool, be careful not to add sludge. 51m, the other is not sufficiently moist, all known, then heat in a high temperature environment to completely destroy or convert into, and report the weight. 2.9.3 Calculate
sulfuric acid content
, and
W—sample weight.
3 Acceptance rules
3.1 This product shall be inspected by the technical control and supervision department of the manufacturer. The manufacturer shall ensure that all products shipped out of the factory meet the requirements of this standard. Each product shipped out of the factory shall be accompanied by a quality certificate. 3.2 The user has the right to inspect the quality of the received products in accordance with the inspection rules and test methods specified in this standard to check whether its indicators meet the requirements of this standard.
QBT 3783—1999
8. Sampling method: Each sample is sampled by the five-bottle method. Take 10 samples from each bottle, mix the selected samples quickly, and pack them into two sterilized and dried wide-mouth bottles with ground seals. A label is attached on the bottle indicating the manufacturer name, product name, sample number, and sampling date. One bottle is sent to the laboratory branch, and the other is kept for 6 months for further analysis. 3. If one indicator in the inspection does not meet the requirements of this standard, a sample should be selected from two bottles with the same packaging for re-inspection. If only one indicator of the product meets the requirements of this standard, the whole product cannot be accepted. 5. When the supply and demand parties have objections to the product and need arbitration, they can consult with each other. Select an arbitration unit and carry out the inspection according to the acceptance and inspection methods specified in this standard.
Packaging, marking, storage and transportation
4.1 Sodium copper chlorophyll salt is packed in brown bottles, with a net weight of 0.1~0.5kg per bottle. 2 Each bottle of sodium copper chlorophyll salt has instructions. The instructions include: manufacturer name, product name, batch number, production date, technical conditions, usage, storage conditions, and the words "food additive". 4.1 After sodium copper chlorophyll salt is bottled, it is packed in a box, and each box is labeled with the manufacturer name, product name, label, batch number, production date, net weight (kg), number of bottles, storage conditions, and product compliance with this standard. 4.4 Sodium copper chlorophyll salt is stored in a dark, shaded, and dry place, sealed, and no foreign substances are allowed to mix. 4.5 During the loading process, the goods should be shipped carefully and gently. Do not put them down, and do not allow them to be mixed with hanging objects during loading.1g) is placed in a 50ml bottle, water is used to dissolve it, 15ml of caustic soda is added, after a while, 10ml of chlorinated acid is added, and the color of the sample is light. When the sample in the bottle begins to change or stain, the caustic soda is continuously added to the bottle wall to dissolve the blue to blue-green color, and the solution is cooled effectively. Water is added to about 59mF, and then heated to 5-10 minutes. Cool and transfer to a 1000% liquid bottle, and cool to 500°C. Take the above sample and digest it in 1ml bottles. In addition, 0, 2, 4, 6, 8, 19g of the sample are placed in 150ml bottles or incubators respectively. Add water to 100°C and fold. , add 1 ml of the sample digestion solution, add 3 ml of 6.5% iodine solution and 1 ml of blue chloride solution respectively, mix and incubate for 15 minutes. Add 5 ml of acetic acid solution to the glass tube, and place the end of the curved tube into the test tube containing 1 l of saline solution. After the reaction in the chamber for 4 hours, remove the test tube, add 4 ml of the colorimetric solution to adjust the extinction point, and compare the measured extinction values.
2.6.3 Calculation of the content of the digestion test sample,
Where:
is the total amount of sample digested, ml
is the digestion test sample, m.
2.7 Determination of lead content
2.7.1 Reagents and solutions
Rehydration (GB631-77): 1:1 distilled water: -# × 1000
Saline (GH 622-77): 6 N HCl
Phenol red (1G3-959-76): 0.1 ethyl acetate solution; analytical grade, 2:1 solution
Amine (H3-967-76): chemically pure, 20% solution
Oxygen nitrate (G682-78): analytically pure
Nitric acid (GB626-78): analytically pure, 1% solution: bisphenol A (HG3343-6U): analytically pure, weigh 50 mg of bisphenol A and add the total amount to 100 ml. Take this as the stock solution, take 1.5ml of this solution, dilute it to 100ml with chloroform, and the transmittance of this solution is about 70 points when measured by a spectrophotometer at a wavelength of 510nm. The double-research cross-application solution is prepared (0% transmittance):
y-_10(2-tg70)
In the formula, V
is the number of liters of sulfur-free stock solution;
…is the extinction value of the double-research cross-application solution at a wavelength of 510nm. 1.55
QB/T3783-1999
The lead standard solution (prepared according to GB602-77) needs to be diluted 10 times before use. 1ml is equivalent to 0.91mg. 2.t-2 Determination procedure
Securely pipette 20ml of the sample digestion solution prepared in the above determination (equivalent to 1g of sample) and the same amount of reagent blank solution, place them in 125ml separating funnels respectively, add water to 20ml each. Separately pipette 0, 0.1, 0.2, 0.8, 0.4, 0.5ml of lead standard solution (equivalent to 0, 1, 2, 3.1, 5g of lead) and place them in 12ml separating funnels respectively, add 1% tartaric acid to 20ml each, add 20% ferric citrate solution 2ml, 20% salicylic acid solution 1ml, 2 drops of phenol red indicator solution to the sample digestion solution, reagent blank solution and lead standard solution respectively, adjust to red with water, add 10% mouse calcium sulfate solution 2 drops to each group and mix. Add 5 μl of double vegetable trace application liquid to each sample, let it sit for 1 minute, and after standing for 2 minutes, add the new liquid to a 100 μm colorimetric cup, adjust the zero point with a 0.05 μl tube, measure the extinction value at a wavelength of 51 nm, and draw a standard curve for comparison.
2.7.3 Calculation of the content of the sample (rmg/kg)
g
W ... Calculate
1% of the weight of the sample
In the formula, the addition of the test sample is:
G-add,;
G-. Sample weight, g.
2.9 Determination of sulfuric acid ash
2.9.1 Reagents and solutions
Sulfuric acid (GB625-7): 5% analysis:
2.9.2 Determination procedure
Gi - G2
Weigh sample 1 (accurately weigh 6.015 grams of carbonized chicken, cool, be careful not to sludge. 51m, not enough moisture, all known, then heat in high temperature to completely destroy or convert into, report the weight. 2.9.3 Calculate
sulfuric acid content
, and
W—sample weight.
3 Acceptance rules
3.1 This product shall be inspected by the technical control and supervision department of the manufacturer. The manufacturer shall ensure that all products shipped out of the factory meet the requirements of this standard. Each product shipped out of the factory shall be accompanied by a quality certificate. 3.2 The user has the right to inspect the quality of the received products in accordance with the inspection rules and test methods specified in this standard to check whether its indicators meet the requirements of this standard.
QBT 3783—1999
8. Sampling method: Each sample is sampled by the five-bottle method. Take 10 samples from each bottle, mix the selected samples quickly, and pack them into two sterilized and dried wide-mouth bottles with ground seals. A label is attached on the bottle indicating the manufacturer name, product name, sample number, and sampling date. One bottle is sent to the laboratory branch, and the other is kept for 6 months for further analysis. 3. If one indicator in the inspection does not meet the requirements of this standard, a sample should be selected from two bottles with the same packaging for re-inspection. If only one indicator of the product meets the requirements of this standard, the whole product cannot be accepted. 5. When the supply and demand parties have objections to the product and need arbitration, they can consult with each other. Select an arbitration unit and carry out the inspection according to the acceptance and inspection methods specified in this standard.
Packaging, marking, storage and transportation
4.1 Sodium copper chlorophyll salt is packed in brown bottles, with a net weight of 0.1~0.5kg per bottle. 2 Each bottle of sodium copper chlorophyll salt has instructions. The instructions include: manufacturer name, product name, batch number, production date, technical conditions, usage, storage conditions, and the words "food additive". 4.1 After sodium copper chlorophyll salt is bottled, it is packed in a box, and each box is labeled with the manufacturer name, product name, label, batch number, production date, net weight (kg), number of bottles, storage conditions, and product compliance with this standard. 4.4 Sodium copper chlorophyll salt is stored in a dark, shaded, and dry place, sealed, and no foreign substances are allowed to mix. 4.5 During the loading process, the goods should be shipped carefully and gently. Do not place them together with hanging objects.1 Reagents and solutions
Rehydration (GB631-77): 1:1 distilled water: 6 N 2 O 4 nitric acid (GH 622-77): 6 N 2 O 4 nitric acid (GH 622-77): 1:1 distilled water: 0.1 ethyl acetate (GH 622-77): 6 N 2 O 4 nitric acid ... Take this as the stock solution, take 1.5ml of this solution, dilute it to 100ml with chloroform, and the transmittance of this solution is about 70 points when measured by a spectrophotometer at a wavelength of 510nm. The double-research cross-application solution is prepared (0% transmittance):
y-_10(2-tg70)
In the formula, V
is the number of liters of sulfur-free stock solution;
…is the extinction value of the double-research cross-application solution at a wavelength of 510nm. 1.55
QB/T3783-1999
The lead standard solution (prepared according to GB602-77) needs to be diluted 10 times before use. 1ml is equivalent to 0.91mg. 2.t-2 Determination procedure
Securely pipette 20ml of the sample digestion solution prepared in the above determination (equivalent to 1g of sample) and the same amount of reagent blank solution, place them in 125ml separating funnels respectively, add water to 20ml each. Separately pipette 0, 0.1, 0.2, 0.8, 0.4, 0.5ml of lead standard solution (equivalent to 0, 1, 2, 3.1, 5g of lead) and place them in 12ml separating funnels respectively, add 1% tartaric acid to 20ml each, add 20% ferric citrate solution 2ml, 20% salicylic acid solution 1ml, 2 drops of phenol red indicator solution to the sample digestion solution, reagent blank solution and lead standard solution respectively, adjust to red with water, add 10% mouse calcium sulfate solution 2 drops to each group and mix. Add 5 μl of double vegetable trace application liquid to each sample, let it sit for 1 minute, and after standing for 2 minutes, add the new liquid to a 100 μm colorimetric cup, adjust the zero point with a 0.05 μl tube, measure the extinction value at a wavelength of 51 nm, and draw a standard curve for comparison.
2.7.3 Calculation of the content of the sample (rmg/kg)
g
W ... Calculate
1% of the weight of the sample
In the formula, the addition of the test sample is:
G-add,;
G-. Sample weight, g.
2.9 Determination of sulfuric acid ash
2.9.1 Reagents and solutions
Sulfuric acid (GB625-7): 5% analysis:
2.9.2 Determination procedure
Gi - G2
Weigh sample 1 (accurately weigh 6.015 grams of carbonized chicken, cool, be careful not to add sludge. 51m, the other is not sufficiently moist, all known, then heat in a high temperature environment to completely destroy or convert into, and report the weight. 2.9.3 Calculate
sulfuric acid content
, and
W—sample weight.
3 Acceptance rules
3.1 This product shall be inspected by the technical control and supervision department of the manufacturer. The manufacturer shall ensure that all products shipped out of the factory meet the requirements of this standard. Each product shipped out of the factory shall be accompanied by a quality certificate. 3.2 The user has the right to inspect the quality of the received products in accordance with the inspection rules and test methods specified in this standard to check whether its indicators meet the requirements of this standard.
QBT 3783—1999
8. Sampling method: Each sample is sampled by the five-bottle method. Take 10 samples from each bottle, mix the selected samples quickly, and pack them into two sterilized and dried wide-mouth bottles with ground seals. A label is attached on the bottle indicating the manufacturer name, product name, sample number, and sampling date. One bottle is sent to the laboratory branch, and the other is kept for 6 months for further analysis. 3. If one indicator in the inspection does not meet the requirements of this standard, a sample should be selected from two bottles with the same packaging for re-inspection. If only one indicator of the product meets the requirements of this standard, the whole product cannot be accepted. 5. When the supply and demand parties have objections to the product and need arbitration, they can consult with each other. Select an arbitration unit and carry out the inspection according to the acceptance and inspection methods specified in this standard.
Packaging, marking, storage and transportation
4.1 Sodium copper chlorophyll salt is packed in brown bottles, with a net weight of 0.1~0.5kg per bottle. 2 Each bottle of sodium copper chlorophyll salt has instructions. The instructions include: manufacturer name, product name, batch number, production date, technical conditions, usage, storage conditions, and the words "food additive". 4.1 After sodium copper chlorophyll salt is bottled, it is packed in a box, and each box is labeled with the manufacturer name, product name, label, batch number, production date, net weight (kg), number of bottles, storage conditions, and product compliance with this standard. 4.4 Sodium copper chlorophyll salt is stored in a dark, shaded, and dry place, sealed, and no foreign substances are allowed to mix. 4.5 During the loading process, the goods should be shipped carefully and gently. Do not put them down, and do not allow them to be mixed with hanging objects during loading.1 Reagents and solutions
Rehydration (GB631-77): 1:1 distilled water: 6 N 2 O 4 nitric acid (GH 622-77): 6 N 2 O 4 nitric acid (GH 622-77): 1:1 distilled water: 0.1 ethyl acetate (GH 622-77): 6 N 2 O 4 nitric acid ... Take this as the stock solution, take 1.5ml of this solution, dilute it to 100ml with chloroform, and the transmittance of this solution is about 70 points when measured by a spectrophotometer at a wavelength of 510nm. The double-research cross-application solution is prepared (0% transmittance):
y-_10(2-tg70)
In the formula, V
is the number of liters of sulfur-free stock solution;
…is the extinction value of the double-research cross-application solution at a wavelength of 510nm. 1.55
QB/T3783-1999
The lead standard solution (prepared according to GB602-77) needs to be diluted 10 times before use. 1ml is equivalent to 0.91mg. 2.t-2 Determination procedure
Securely pipette 20ml of the sample digestion solution prepared in the above determination (equivalent to 1g of sample) and the same amount of reagent blank solution, place them in 125ml separating funnels respectively, add water to 20ml each. Separately pipette 0, 0.1, 0.2, 0.8, 0.4, 0.5ml of lead standard solution (equivalent to 0, 1, 2, 3.1, 5g of lead) and place them in 12ml separating funnels respectively, add 1% tartaric acid to 20ml each, add 20% ferric citrate solution 2ml, 20% salicylic acid solution 1ml, 2 drops of phenol red indicator solution to the sample digestion solution, reagent blank solution and lead standard solution respectively, adjust to red with water, add 10% mouse calcium sulfate solution 2 drops to each group and mix. Add 5 μl of double vegetable trace application liquid to each sample, let it sit for 1 minute, and after standing for 2 minutes, add the new liquid to a 100 μm colorimetric cup, adjust the zero point with a 0.05 μl tube, measure the extinction value at a wavelength of 51 nm, and draw a standard curve for comparison.
2.7.3 Calculation of the content of the sample (rmg/kg)
g
W ... Calculate
1% of the weight of the sample
In the formula, the addition of the test sample is:
G-add,;
G-. Sample weight, g.
2.9 Determination of sulfuric acid ash
2.9.1 Reagents and solutions
Sulfuric acid (GB625-7): 5% analysis:
2.9.2 Determination procedure
Gi - G2
Weigh sample 1 (accurately weigh 6.015 grams of carbonized chicken, cool, be careful not to add sludge. 51m, the other is not sufficiently moist, all known, then heat in a high temperature environment to completely destroy or convert into, and report the weight. 2.9.3 Calculate
sulfuric acid content
, and
W—sample weight.
3 Acceptance rules
3.1 This product shall be inspected by the technical control and supervision department of the manufacturer. The manufacturer shall ensure that all products shipped out of the factory meet the requirements of this standard. Each product shipped out of the factory shall be accompanied by a quality certificate. 3.2 The user has the right to inspect the quality of the received products in accordance with the inspection rules and test methods specified in this standard to check whether its indicators meet the requirements of this standard.
QBT 3783—1999
8. Sampling method: Each sample is sampled by the five-bottle method. Take 10 samples from each bottle, mix the selected samples quickly, and pack them into two sterilized and dried wide-mouth bottles with ground seals. A label is attached on the bottle indicating the manufacturer name, product name, sample number, and sampling date. One bottle is sent to the laboratory branch, and the other is kept for 6 months for further analysis. 3. If one indicator in the inspection does not meet the requirements of this standard, a sample should be selected from two bottles with the same packaging for re-inspection. If only one indicator of the product meets the requirements of this standard, the whole product cannot be accepted. 5. When the supply and demand parties have objections to the product and need arbitration, they can consult with each other. Select an arbitration unit and carry out the inspection according to the acceptance and inspection methods specified in this standard.
Packaging, marking, storage and transportation
4.1 Sodium copper chlorophyll salt is packed in brown bottles, with a net weight of 0.1~0.5kg per bottle. 2 Each bottle of sodium copper chlorophyll salt has instructions. The instructions include: manufacturer name, product name, batch number, production date, technical conditions, usage, storage conditions, and the words "food additive". 4.1 After sodium copper chlorophyll salt is bottled, it is packed in a box, and each box is labeled with the manufacturer name, product name, label, batch number, production date, net weight (kg), number of bottles, storage conditions, and product compliance with this standard. 4.4 Sodium copper chlorophyll salt is stored in a dark, shaded, and dry place, sealed, and no foreign substances are allowed to mix. 4.5 During the loading process, the goods should be shipped carefully and gently. Do not put them down, and do not allow them to be mixed with hanging objects during loading.2 The user has the right to inspect the received product quality in accordance with the inspection rules and test methods specified in this standard to check whether its indicators meet the requirements of this standard.
QBT 3783—1999
8. Sampling method: Each sample is sampled by the five-bottle method. Take 10 samples from each bottle, mix the selected samples quickly, and pack them into two sterilized, dried and sealed wide-mouth bottles. A label is attached on the top to indicate the name of the manufacturer, product name, sample number, and sampling date. One bottle is sent to the laboratory branch, and the other is kept for 6 months for further analysis. 3. If one indicator does not meet the requirements of this standard during the inspection, a sample should be selected from two bottles with two times the packaging for re-inspection. If only one indicator does not meet the requirements of this standard as a result of the re-inspection of the product, the whole product cannot be accepted. 5. When the supply and demand parties have disputes over the product and need arbitration, they can select an arbitration unit and proceed in accordance with the acceptance and inspection methods specified in this standard.
Packaging, marking, storage and transportation
4.1 Sodium copper salt is packed in brown bottles, with 0.1~0.5kg per bottle. 2 There is an instruction sheet on each sodium copper salt. The instructions include: manufacturer name, product name, batch number, production date, technical conditions, usage, storage conditions, and the words "food additives". 4.1 After bottling, sodium chlorophylline is packed in boxes. Each box is labeled with the manufacturer's name, product name, label, batch number, production date, delivery date, net weight (kg), number of bottles, storage conditions, and product compliance with this standard. 4.4 Sodium chlorophylline should be stored in a dark, cool and dry place. It should be sealed and not mixed with foreign substances. 4.5 During the transportation process, the product should be handled with caution and not mixed with foreign substances. It is forbidden to ship it together with foreign substances.2 The user has the right to inspect the received product quality in accordance with the inspection rules and test methods specified in this standard to check whether its indicators meet the requirements of this standard.
QBT 3783—1999
8. Sampling method: Each sample is sampled by the five-bottle method. Take 10 samples from each bottle, mix the selected samples quickly, and pack them into two sterilized, dried and sealed wide-mouth bottles. A label is attached on the top to indicate the name of the manufacturer, product name, sample number, and sampling date. One bottle is sent to the laboratory branch, and the other is kept for 6 months for further analysis. 3. If one indicator does not meet the requirements of this standard during the inspection, a sample should be selected from two bottles with two times the packaging for re-inspection. If only one indicator does not meet the requirements of this standard as a result of the re-inspection of the product, the whole product cannot be accepted. 5. When the supply and demand parties have disputes over the product and need arbitration, they can select an arbitration unit and proceed in accordance with the acceptance and inspection methods specified in this standard.
Packaging, marking, storage and transportation
4.1 Sodium copper salt is packed in brown bottles, with 0.1~0.5kg per bottle. 2 There is an instruction sheet on each sodium copper salt. The instructions include: manufacturer name, product name, batch number, production date, technical conditions, usage, storage conditions, and the words "food additives". 4.1 After bottling, sodium chlorophylline is packed in boxes. Each box is labeled with the manufacturer's name, product name, label, batch number, production date, delivery date, net weight (kg), number of bottles, storage conditions, and product compliance with this standard. 4.4 Sodium chlorophylline should be stored in a dark, cool and dry place. It should be sealed and not mixed with foreign substances. 4.5 During the transportation process, the product should be handled with caution and not mixed with foreign substances. It is forbidden to ship it together with foreign substances.
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