Some standard content:
National Standard of the People's Republic of China
Food additive
Distilled glycerin monostearate
Food additive
Distilled glycerin monostearateSubject content and scope of application
GB 15612--1995
This standard specifies the technical requirements, test methods, inspection rules and marking, packaging, transportation, storage, etc. of distilled glycerin monostearate, a food additive.
This standard applies to distilled glycerin monostearate purified by molecular distillation from the reaction of hydrogenated palm oil and glycerol, which is used as an emulsifier in the food industry.
2 Reference standards
GB 618
GB 1986
Chemical reagents
Chemical reagents
Chemical reagents
Preparation of standard solutions for titration analysis (volume analysis) Preparation of preparations and products used in test methods Method for determination of crystallization point
Food additives Glyceryl monostearate (40%) GB8450
GB 8451
3 Technical requirements
Determination of arsenic in food additives
Limit test method for heavy metals in food additives Sensory indicators: milky white or light yellow waxy or powdery solid, odorless and tasteless. 3.1
3.2 Physical and chemical indicators: see the table below.
Monostearyl glycerol content, %
Free acid (calculated as stearic acid), %
Arsenic (As), %
Heavy metal (calculated as Pb), %
Approved by the State Administration of Technical Supervision on July 6, 1995
60.0~~70.0
Implemented on April 1, 1996
4 Test methods
4.1 Sensory index inspection
GB 15612—1995
4.1.1 Appearance inspection: Visual inspection under natural light with normal vision. 4.1.2 Odor inspection: No odor or rancid odor of grease can be smelled with normal vision. 4.2 Physical and chemical index test
4.2.1 Monostearate glyceryl content
4.2.1.1 Reagents and solutions
a Glycerol (GB687): analytical grade.
b. Periodic acid (HG/T3-1086), analytical grade: 2.7g periodic acid is dissolved in 50mL distilled water, then 950mL glacial acetic acid is added, and the solution is stored in the dark.
c. Glacial acetic acid (GB676): analytical grade.
d. Chloroform (GB682): analytical grade. e. Perchloric acid (GB623), analytical grade, 56% solution: 10mL perfluoric acid (about 70% concentration), add 4.4mL glacial acetic acid, shake to mix (ready to use).
f. Potassium iodide (GB1272), analytical grade, 15% solution: 15g potassium iodide is diluted with water to a 100mL volumetric flask and stored in a brown bottle.
g. 1% starch indicator solution: prepared according to the method of GB603. h. 0.1mol/L sodium thiosulfate standard solution: prepared and calibrated according to the method of GB601. 4.2.1.2 Applicability identification of reagents
4.2.1.2.1 Determination of periodic acid: Dissolve 0.5~~0.6g glycerol in 50mL distilled water, add 50mL periodic acid solution, and add another 50mL periodic acid solution in 50mL distilled water as a blank control. Let the prepared solution and blank reagent stand for 30min, and then titrate them according to the operating steps of 4.2.1.4 respectively. After blank titration correction, the titration ratio of the periodic acid solution should be between 0.75 and 0.76, otherwise the periodic acid reagent does not meet the requirements of this experiment. 4.2.1.2.2 Determination of chloroform: Take two 50mL periodic acid solutions (which meet the requirements after the above test), add 50mL chloroform and 50mL distilled water respectively, and then titrate according to the method of 4.2.1.4. The difference between the titration values of the two should not be higher than 0.5mL, otherwise the chloroform reagent does not meet the requirements of this experiment.
4.2.1.3 Sample preparation
The sample must be homogeneous. If it needs to be melted, the melting temperature should not exceed its freezing point by 10℃. Excessive heating will cause the monostearate content of the sample to decrease. If the sample contains free glycerol, such samples should be completely melted and homogenized under intense stirring before sampling, weighing and determination.
4.2.1.4 Operation steps
Weigh 0.15-0.17g of sample (accurate to 0.0002g), dissolve the sample in chloroform, transfer to a 50mL volumetric flask, make up to volume with chloroform, spread thoroughly, then pour all into a 250mL separatory funnel, and add 50mL of distilled water. Rinse the vessel four times, put them into the separatory funnel together, plug it tightly, shake the contents vigorously for 1min (invert twice in the middle to exhaust), and then let it stand until the aqueous phase and chloroform layer of the mixture are separated, which takes about 1~3h (if an emulsion is formed and cannot be separated, 50mL of 5% acetic acid solution can be used instead of distilled water to redo the process). After separation, the chloroform layer must be clear or slightly turbid. Use a pipette to draw 25.00mL of periodic acid test solution into a 500mL iodine volumetric flask, add 25.00mL of chloroform sample solution, and add 0.04mL of 56% perchloric acid solution, shake the iodine volumetric flask to mix gently. The blank control is the same as the sample determination, except that 25mL of chloroform is used instead of the sample solution. Place in a dark place for 30 minutes to allow full action [Note: The temperature (i.e. liquid temperature) must not exceed 20℃ at this time. If the temperature is too high, it can be cooled with ice water]. Add 10mL of 15% potassium iodide solution, shake to mix, and place for 1 to 5 minutes to avoid strong sunlight. Add 100mL of cold distilled water, stir electromagnetically to mix, and titrate with 0.1mol/L standard sodium thiosulfate solution. When the iodine is dripped into the water layer, it changes from brown to light yellow. Add 2 mL of 1% starch indicator solution and continue titrating until the blue color disappears completely (note: it should be stirred vigorously, and the iodine in the chloroform layer must be completely transferred to the water layer). Record the number of milliliters of sodium thiosulfate standard solution consumed, and do the blank test in the same way. The ratio of the amount of sodium thiosulfate standard solution consumed by the sample to the amount of sodium thiosulfate standard solution consumed by the blank titration should be 0.8 or slightly larger, otherwise a smaller sample can be used for re-determination. If the blank titration number minus the sample titration number is less than 2 mL, use a slightly larger sample and re-determine.
4.2.1.5 Calculation of results
X= 1 15(V.-V.)×c× 0. 344 5 × 100m
Wherein: X-
monostearyl glycerol content, %;
Correction coefficient:
V. —-volume of sodium thiosulfate standard solution consumed in blank titration, mL;V. —volume of sodium thiosulfate standard solution consumed in sample titration, mL; c—actual concentration of sodium thiosulfate standard solution, mol/L; m—sample mass, g;
|||||||||0.3445--the average mass of monostearate glycerol expressed in grams equivalent to 1.00mL sodium thiosulfate standard titration solution [c(2NazS,O,)=1.000mol/L].
4.2.1.6 Allowable difference
The experimental result shall be the arithmetic mean of the results of two parallel determinations (retain two decimal places). The allowable difference of the results of two parallel determinations is 1.00%.
4.2.2 Iodine value
4.2.2.1 Reagents and solutions
Hydrochloric acid (GB622): chemically pure, density 1.19kg/L. Potassium permanganate (GB643): chemically pure.
Iodine (GB675): chemically pure.
Glacial acetic acid (GB676): chemically pure.
Chloroform (GB682): chemically pure.
Potassium iodide (GB1272): chemically pure, 15% solution. 0.5% starch indicator solution: prepared according to GB603 method. 0.1mol/L sodium thiosulfate standard solution: prepared and calibrated according to GB601 method. h.
Chlorine: Add hydrochloric acid dropwise to potassium permanganate, and pass the generated chlorine into a washing bottle containing 1.84kg/L sulfuric acid to dry it, and then pass it into the iodine solution.
j. Wei's solution: Dissolve 13g iodine in 1000mL glacial acetic acid, and heat it slightly during dissolution. The solution is placed in 1.000mL brown bottle, and after cooling, use it as iodine solution. Pour 100-200mL from it into another brown bottle and place it in a dark place for adjusting Wei's solution. Then pass chlorine gas into the remaining iodine solution, and wait until its color gradually fades from dark to orange-red and transparent. The amount of chlorine gas introduced should make the amount of sodium thiosulfate solution consumed in the titration close to one times the amount of sodium thiosulfate solution consumed before the chlorine gas is passed. The chlorine gas can also be passed in an appropriate excess, and then adjusted with the iodine solution retained in advance. The correction method is: take 25mL of iodine solution and newly prepared Wei's solution, add 20mL of 15% potassium iodide solution, and then add 100mL of distilled water to each, and titrate with 0.1mol/L sodium thiosulfate solution until the solution is light yellow, add 1~~2mL of starch indicator solution, and continue titrating until the blue disappears. The amount of sodium thiosulfate solution consumed by the newly prepared Wei's solution should be nearly double that of the iodine solution. 4.2.2.2 Operation stepsWww.bzxZ.net
Weigh 2g of sample (accurate to 0.0002g) into an iodine volumetric bottle, add 20mL of trifluoromethane, and after the sample is dissolved, add 10mL of Wei's solution from a burette, spread evenly, moisten the bottle stopper with a small amount of 15% potassium iodide solution, place it in a dark place at 15~20℃ for 30min, then take it out, add 20mL of 15% potassium iodide solution and 100mL of distilled water, and titrate with 0.1mol/L sodium thiosulfate solution until the solution turns light yellow, add 1~2mL of 0.5% starch indicator solution, and continue to titrate until the blue color of the solution disappears. At the same time, perform a blank test under the same conditions. 4.2.2.3 Calculation of results
X1 = VV)×c×0. 253 8 × 100 m
Wherein: X, — iodine value;
Volume of sodium thiosulfate standard solution used in blank test, mL, volume of sodium thiosulfate standard solution used in sample, mL; - actual concentration of sodium thiosulfate standard solution, mol/L, sample mass, g;
0.2538 — mass of iodine expressed in grams equivalent to 1,00mL sodium thiosulfate standard titration solution [c(Na2SzO:)=1.000mol/L].
4.2.2.4 Allowable difference
The experimental result shall be based on the arithmetic mean of the results of two parallel determinations (retain two decimal places). The allowable difference of the results of two parallel determinations is 0.20%.
4.2.3 Determination of freezing point
Carry out in accordance with the provisions of GB618.
4.2.4 Determination of free acid
4.2.4.1 Reagents and solutions
a. 95% ethanol (GB679): analytical grade. b. 0.1mol/L sodium hydroxide standard solution: prepared according to GB601 method. C. 1% phenolphthalein indicator solution: prepared according to GB603 method. 4.2.4.2 Operation steps
Weigh 4g of sample (accurate to 0.001g), place in a conical flask, add 80~~90mL neutral ethanol, heat to dissolve, then drip 5~6 drops of phenol indicator solution, immediately titrate with 0.1mol/L sodium hydroxide standard solution until it turns slightly red, and maintain it for 30s without fading as the end point. 4.2.4.3 Calculation of results
X2 = VXcX 0. 284 5
Wherein: X2~—free acid content, %;
V—volume of sodium hydroxide standard solution consumed in titration, mL, actual concentration of sodium hydroxide standard solution, mol/L, 0.284 5-
（3）
mass of stearic acid in grams equivalent to 1.00 mL sodium hydroxide standard titration solution [c(NaOH)=1.000 mol/L.],
—sample mass, g.
4.2.4.4 Allowable difference
The experimental result shall be based on the arithmetic mean of the results of two parallel determinations (retain two decimal places). The allowable difference between the results of two parallel determinations is 0.02%.
4.2.5 Determination of arsenic
Weigh 5g of sample (accurate to 0.1g), and perform the test according to the stele method of dry digestion in GB8450. 4.2.6 Determination of heavy metals
GB15612—1995
Weigh 5g of sample (accurate to 0.1g), and perform the test according to the provisions of dry digestion in GB8451. 5 Inspection rules
5.1 This product is inspected by the quality inspection department of the manufacturer. The manufacturer shall ensure that all products leaving the factory meet the requirements of this standard. 5.2 The factory inspection items for each batch of products are sensory, content, freezing point, and free acid. The type inspection items are iodine value, arsenic, and heavy metals, which are carried out every three months during normal production. 5.3 This product is a batch of products with uniform quality after the final mixing. 5.4 When sampling, √n+1 sample boxes should be taken from each batch of boxes (n), and the number of small batches shall not be less than 3 boxes. Samples should be taken evenly from the sample boxes, and the sampling quality shall not be less than 100. Mix the samples taken and divide them into two clean and dry sample bottles, one for analysis and the other for retention, and mark the production date, product name and batch number on the sample bottles. 5.5 If any indicator in the test results does not meet the requirements of this standard, samples should be taken from twice the amount of packaging for re-testing. If the re-test results are unqualified, the entire batch of products will be treated as unqualified. 5.6 If the supply and demand parties have objections to the product quality, arbitration shall be conducted by the statutory arbitration unit. 6 Marking, packaging, transportation, storage
6.1 The packaging should be firmly marked with "food additives" and the manufacturer's name, address, trademark, product name, production date, batch number, net weight, shelf life, product standard code, serial number and production license number. The package should contain a quality inspection certificate. 6.2 The packaging of this product is lined with polyethylene bags or clean kraft paper for food, packed in wooden boxes or cartons, and reinforced with plastic tape. The net weight of each box is 10kg or 20kg. g.
6.3 During transportation, this product should be protected from rain, moisture and sunlight. Handle it with care during handling and loading to avoid damage and contamination. 6.4 This product should be stored in a cool, dry warehouse. The room temperature should not exceed 40°C. It should be kept at least 10 cm above the ground to prevent moisture. The shelf life of this product is two years from the date of production in the original packaging. 6.5 This product must not be mixed, transported or stored with toxic substances during storage and transportation. 53
A1 Name Description
GB 15612—1995
Appendix A
Name, chemical formula and relative molecular mass of distilled monostearate glycerol (reference)
The distilled monostearate glycerol in this standard is a mixed glycerol of monostearic acid and palmitic acid, and its content is greater than or equal to 90%. A2 Chemical formula
A2.1 Structural formula
CH,OOC(CH2),CH3
A2.2 Empirical formula
A3 Relative molecular mass
n=14,16
n=19,21
When n=19 in the empirical formula, according to the 1987 international relative atomic mass: 330.50. A3.1
When n=21 in the empirical formula, according to the 1987 international relative atomic mass: 358.56. A3.2The average relative molecular mass of this product is: 344.53. Additional remarks:
This standard is proposed by the China Light Industry Association.
This standard is under the jurisdiction of the National Food Fermentation Standardization Center and the Food Hygiene Supervision and Inspection Institute of the Ministry of Health. This standard was drafted by the Guangzhou Food Additive Technology Development Company and assisted by the Guangdong Provincial Food Hygiene Supervision and Inspection Institute. The main drafters of this standard are Xie Guoqiang, Chen Zhiwei, Liang Yingtao, Huang Qingrui and Dai Ying. 543 Calculation of results
X1 = VV)×c×0. 253 8 × 100 m
Wherein: X,—iodine value;
volume of sodium thiosulfate standard solution used in blank test, mL, volume of sodium thiosulfate standard solution used in sample, mL; -actual concentration of sodium thiosulfate standard solution, mol/L, sample mass, g;
0.2538—-mass of iodine expressed in grams equivalent to 1,00mL sodium thiosulfate standard titration solution [c(Na2SzO:)=1.000mol/L].
4.2.2.4 Allowable difference
The experimental result shall be based on the arithmetic mean of the results of two parallel determinations (retain two decimal places). The allowable difference of the results of two parallel determinations is 0.20%.
4.2.3 Determination of freezing point
Carry out in accordance with the provisions of GB618.
4.2.4 Determination of free acid
4.2.4.1 Reagents and solutions
a. 95% ethanol (GB679): analytical grade. b. 0.1mol/L sodium hydroxide standard solution: prepared according to GB601 method. C. 1% phenolphthalein indicator solution: prepared according to GB603 method. 4.2.4.2 Operation steps
Weigh 4g of sample (accurate to 0.001g), place in a conical flask, add 80~~90mL neutral ethanol, heat to dissolve, then drip 5~6 drops of phenol indicator solution, immediately titrate with 0.1mol/L sodium hydroxide standard solution until it turns slightly red, and maintain it for 30s without fading as the end point. 4.2.4.3 Calculation of results
X2 = VXcX 0. 284 5
Wherein: X2~—free acid content, %;
V—volume of sodium hydroxide standard solution consumed in titration, mL, actual concentration of sodium hydroxide standard solution, mol/L, 0.284 5-
（3）
mass of stearic acid in grams equivalent to 1.00 mL sodium hydroxide standard titration solution [c(NaOH)=1.000 mol/L.],
—sample mass, g.
4.2.4.4 Allowable difference
The experimental result shall be based on the arithmetic mean of the results of two parallel determinations (retain two decimal places). The allowable difference between the results of two parallel determinations is 0.02%.
4.2.5 Determination of arsenic
Weigh 5g of sample (accurate to 0.1g), and perform the test according to the stele method of dry digestion in GB8450. 4.2.6 Determination of heavy metals
GB15612—1995
Weigh 5g of sample (accurate to 0.1g), and perform the test according to the provisions of dry digestion in GB8451. 5 Inspection rules
5.1 This product is inspected by the quality inspection department of the manufacturer. The manufacturer shall ensure that all products leaving the factory meet the requirements of this standard. 5.2 The factory inspection items for each batch of products are sensory, content, freezing point, and free acid. The type inspection items are iodine value, arsenic, and heavy metals, which are carried out every three months during normal production. 5.3 This product is a batch of products with uniform quality after the final mixing. 5.4 When sampling, √n+1 sample boxes should be taken from each batch of boxes (n), and the number of small batches shall not be less than 3 boxes. Samples should be taken evenly from the sample boxes, and the sampling quality shall not be less than 100. Mix the samples taken and divide them into two clean and dry sample bottles, one for analysis and the other for retention, and mark the production date, product name and batch number on the sample bottles. 5.5 If any indicator in the test results does not meet the requirements of this standard, samples should be taken from twice the amount of packaging for re-testing. If the re-test results are unqualified, the entire batch of products will be treated as unqualified. 5.6 If the supply and demand parties have objections to the product quality, arbitration shall be conducted by the statutory arbitration unit. 6 Marking, packaging, transportation, storage
6.1 The packaging should be firmly marked with "food additives" and the manufacturer's name, address, trademark, product name, production date, batch number, net weight, shelf life, product standard code, serial number and production license number. The package should contain a quality inspection certificate. 6.2 The packaging of this product is lined with polyethylene bags or clean kraft paper for food, packed in wooden boxes or cartons, and reinforced with plastic tape. The net weight of each box is 10kg or 20kg. g.
6.3 During transportation, this product should be protected from rain, moisture and sunlight. Handle it with care during handling and loading to avoid damage and contamination. 6.4 This product should be stored in a cool, dry warehouse. The room temperature should not exceed 40°C. It should be kept at least 10 cm above the ground to prevent moisture. The shelf life of this product is two years from the date of production in the original packaging. 6.5 This product must not be mixed, transported or stored with toxic substances during storage and transportation. 53
A1 Name Description
GB 15612—1995
Appendix A
Name, chemical formula and relative molecular mass of distilled monostearate glycerol (reference)
The distilled monostearate glycerol in this standard is a mixed glycerol of monostearic acid and palmitic acid, and its content is greater than or equal to 90%. A2 Chemical formula
A2.1 Structural formula
CH,OOC(CH2),CH3
A2.2 Empirical formula
A3 Relative molecular mass
n=14,16
n=19,21
When n=19 in the empirical formula, according to the 1987 international relative atomic mass: 330.50. A3.1
When n=21 in the empirical formula, according to the 1987 international relative atomic mass: 358.56. A3.2The average relative molecular mass of this product is: 344.53. Additional remarks:
This standard is proposed by the China Light Industry Association.
This standard is under the jurisdiction of the National Food Fermentation Standardization Center and the Food Hygiene Supervision and Inspection Institute of the Ministry of Health. This standard was drafted by the Guangzhou Food Additive Technology Development Company and assisted by the Guangdong Provincial Food Hygiene Supervision and Inspection Institute. The main drafters of this standard are Xie Guoqiang, Chen Zhiwei, Liang Yingtao, Huang Qingrui and Dai Ying. 543 Calculation of results
X1 = VV)×c×0. 253 8 × 100 m
Wherein: X,—iodine value;
volume of sodium thiosulfate standard solution used in blank test, mL, volume of sodium thiosulfate standard solution used in sample, mL; -actual concentration of sodium thiosulfate standard solution, mol/L, sample mass, g;
0.2538—-mass of iodine expressed in grams equivalent to 1,00mL sodium thiosulfate standard titration solution [c(Na2SzO:)=1.000mol/L].
4.2.2.4 Allowable difference
The experimental result shall be based on the arithmetic mean of the results of two parallel determinations (retain two decimal places). The allowable difference of the results of two parallel determinations is 0.20%.
4.2.3 Determination of freezing point
Carry out in accordance with the provisions of GB618.
4.2.4 Determination of free acid
4.2.4.1 Reagents and solutions
a. 95% ethanol (GB679): analytical grade. b. 0.1mol/L sodium hydroxide standard solution: prepared according to GB601 method. C. 1% phenolphthalein indicator solution: prepared according to GB603 method. 4.2.4.2 Operation steps
Weigh 4g of sample (accurate to 0.001g), place in a conical flask, add 80~~90mL neutral ethanol, heat to dissolve, then drip 5~6 drops of phenol indicator solution, immediately titrate with 0.1mol/L sodium hydroxide standard solution until it turns slightly red, and maintain it for 30s without fading as the end point. 4.2.4.3 Calculation of results
X2 = VXcX 0. 284 5
Wherein: X2~—free acid content, %;
V—volume of sodium hydroxide standard solution consumed in titration, mL, actual concentration of sodium hydroxide standard solution, mol/L, 0.284 5-
（3）
mass of stearic acid in grams equivalent to 1.00 mL sodium hydroxide standard titration solution [c(NaOH)=1.000 mol/L.],
—sample mass, g.
4.2.4.4 Allowable difference
The experimental result shall be based on the arithmetic mean of the results of two parallel determinations (retain two decimal places). The allowable difference between the results of two parallel determinations is 0.02%.
4.2.5 Determination of arsenic
Weigh 5g of sample (accurate to 0.1g), and perform the test according to the stele method of dry digestion in GB8450. 4.2.6 Determination of heavy metals
GB15612—1995
Weigh 5g of sample (accurate to 0.1g), and perform the test according to the provisions of dry digestion in GB8451. 5 Inspection rules
5.1 This product is inspected by the quality inspection department of the manufacturer. The manufacturer shall ensure that all products leaving the factory meet the requirements of this standard. 5.2 The factory inspection items for each batch of products are sensory, content, freezing point, and free acid. The type inspection items are iodine value, arsenic, and heavy metals, which are carried out every three months during normal production. 5.3 This product is a batch of products with uniform quality after the final mixing. 5.4 When sampling, √n+1 sample boxes should be taken from each batch of boxes (n), and the number of small batches shall not be less than 3 boxes. Samples should be taken evenly from the sample boxes, and the sampling quality shall not be less than 100. Mix the samples taken and divide them into two clean and dry sample bottles, one for analysis and the other for retention, and mark the production date, product name and batch number on the sample bottles. 5.5 If any indicator in the test results does not meet the requirements of this standard, samples should be taken from twice the amount of packaging for re-testing. If the re-test results are unqualified, the entire batch of products will be treated as unqualified. 5.6 If the supply and demand parties have objections to the product quality, arbitration shall be conducted by the statutory arbitration unit. 6 Marking, packaging, transportation, storage
6.1 The packaging should be firmly marked with "food additives" and the manufacturer's name, address, trademark, product name, production date, batch number, net weight, shelf life, product standard code, serial number and production license number. The package should contain a quality inspection certificate. 6.2 The packaging of this product is lined with polyethylene bags or clean kraft paper for food, packed in wooden boxes or cartons, and reinforced with plastic tape. The net weight of each box is 10kg or 20kg. g.
6.3 During transportation, this product should be protected from rain, moisture and sunlight. Handle it with care during handling and loading to avoid damage and contamination. 6.4 This product should be stored in a cool, dry warehouse. The room temperature should not exceed 40°C. It should be kept at least 10 cm above the ground to prevent moisture. The shelf life of this product is two years from the date of production in the original packaging. 6.5 This product must not be mixed, transported or stored with toxic substances during storage and transportation. 53
A1 Name Description
GB 15612—1995
Appendix A
Name, chemical formula and relative molecular mass of distilled monostearate glycerol (reference)
The distilled monostearate glycerol in this standard is a mixed glycerol of monostearic acid and palmitic acid, and its content is greater than or equal to 90%. A2 Chemical formula
A2.1 Structural formula
CH,OOC(CH2),CH3
A2.2 Empirical formula
A3 Relative molecular mass
n=14,16
n=19,21
When n=19 in the empirical formula, according to the 1987 international relative atomic mass: 330.50. A3.1
When n=21 in the empirical formula, according to the 1987 international relative atomic mass: 358.56. A3.2The average relative molecular mass of this product is: 344.53. Additional remarks:
This standard is proposed by the China Light Industry Association.
This standard is under the jurisdiction of the National Food Fermentation Standardization Center and the Food Hygiene Supervision and Inspection Institute of the Ministry of Health. This standard was drafted by the Guangzhou Food Additive Technology Development Company and assisted by the Guangdong Provincial Food Hygiene Supervision and Inspection Institute. The main drafters of this standard are Xie Guoqiang, Chen Zhiwei, Liang Yingtao, Huang Qingrui and Dai Ying. 541 This product is inspected by the quality inspection department of the manufacturer. The manufacturer shall ensure that all products shipped out of the factory meet the requirements of this standard. 5.2 The factory inspection items for each batch of products are sensory, content, freezing point, free acid, etc. The type inspection items are iodine value, arsenic, and heavy metals, which are carried out every three months during normal production. 5.3 This product is a batch of products with uniform quality after final mixing. 5.4 When sampling, a number of sample boxes of √n+1 should be taken from each batch of boxes (n). In the case of small batches, no less than 3 boxes should be taken. Samples should be taken evenly from the sample boxes, and the sampling quality should not be less than 100. Mix the samples taken and divide them into two clean and dry sample bottles, one for analysis and the other for retention. The production date, product name and batch number should be marked on the sample bottles. 5.5 If any of the indicators in the inspection results do not meet the requirements of this standard, samples should be taken from twice the amount of packaging for re-inspection. If the re-inspection results are unqualified, the entire batch of products will be treated as unqualified. 5.6 If the supply and demand parties have any objection to the product quality, the statutory arbitration unit shall conduct arbitration. 6 Marking, packaging, transportation, storage
6.1 The packaging should be firmly marked with the words "food additives" and the manufacturer's name, address, trademark, product name, production date, batch number, net weight, shelf life and product standard code, serial number and production license number. There should be a quality inspection certificate in the package. 6.2 The inner lining of the packaging of this product is a polyethylene bag or clean kraft paper for food, which is packed in a wooden box or carton and reinforced with plastic tape. The net weight of each box is 10kg or 20k g.
6.3 During transportation, this product should be protected from rain, moisture and sunlight. Handle it with care during handling and loading to avoid damage and contamination. 6.4 This product should be stored in a cool, dry warehouse. The room temperature should not exceed 40°C. It should be kept at least 10 cm above the ground to prevent moisture. The shelf life of this product is two years from the date of production in the original packaging. 6.5 This product must not be mixed, transported or stored with toxic substances during storage and transportation. 53
A1 Name Description
GB 15612—1995
Appendix A
Name, chemical formula and relative molecular mass of distilled monostearate glycerol (reference)
The distilled monostearate glycerol in this standard is a mixed glycerol of monostearic acid and palmitic acid, and its content is greater than or equal to 90%. A2 Chemical formula
A2.1 Structural formula
CH,OOC(CH2),CH3
A2.2 Empirical formula
A3 Relative molecular mass
n=14,16
n=19,21
When n=19 in the empirical formula, according to the 1987 international relative atomic mass: 330.50. A3.1
When n=21 in the empirical formula, according to the 1987 international relative atomic mass: 358.56. A3.2The average relative molecular mass of this product is: 344.53. Additional remarks:
This standard is proposed by the China Light Industry Association.
This standard is under the jurisdiction of the National Food Fermentation Standardization Center and the Food Hygiene Supervision and Inspection Institute of the Ministry of Health. This standard was drafted by the Guangzhou Food Additive Technology Development Company and assisted by the Guangdong Provincial Food Hygiene Supervision and Inspection Institute. The main drafters of this standard are Xie Guoqiang, Chen Zhiwei, Liang Yingtao, Huang Qingrui and Dai Ying. 541 This product is inspected by the quality inspection department of the manufacturer. The manufacturer shall ensure that all products shipped out of the factory meet the requirements of this standard. 5.2 The factory inspection items for each batch of products are sensory, content, freezing point, free acid, etc. The type inspection items are iodine value, arsenic, and heavy metals, which are carried out every three months during normal production. 5.3 This product is a batch of products with uniform quality after final mixing. 5.4 When sampling, a number of sample boxes of √n+1 should be taken from each batch of boxes (n). In the case of small batches, no less than 3 boxes should be taken. Samples should be taken evenly from the sample boxes, and the sampling quality should not be less than 100. Mix the samples taken and divide them into two clean and dry sample bottles, one for analysis and the other for retention. The production date, product name and batch number should be marked on the sample bottles. 5.5 If any of the indicators in the inspection results do not meet the requirements of this standard, samples should be taken from twice the amount of packaging for re-inspection. If the re-inspection results are unqualified, the entire batch of products will be treated as unqualified. 5.6 If the supply and demand parties have any objection to the product quality, the statutory arbitration unit shall conduct arbitration. 6 Marking, packaging, transportation, storage
6.1 The packaging should be firmly marked with the words "food additives" and the manufacturer's name, address, trademark, product name, production date, batch number, net weight, shelf life and product standard code, serial number and production license number. There should be a quality inspection certificate in the package. 6.2 The inner lining of the packaging of this product is a polyethylene bag or clean kraft paper for food, which is packed in a wooden box or carton and reinforced with plastic tape. The net weight of each box is 10kg or 20k g.
6.3 During transportation, this product should be protected from rain, moisture and sunlight. Handle it with care during handling and loading to avoid damage and contamination. 6.4 This product should be stored in a cool, dry warehouse. The room temperature should not exceed 40°C. It should be kept at least 10 cm above the ground to prevent moisture. The shelf life of this product is two years from the date of production in the original packaging. 6.5 This product must not be mixed, transported or stored with toxic substances during storage and transportation. 53
A1 Name Description
GB 15612—1995
Appendix A
Name, chemical formula and relative molecular mass of distilled monostearate glycerol (reference)
The distilled monostearate glycerol in this standard is a mixed glycerol of monostearic acid and palmitic acid, and its content is greater than or equal to 90%. A2 Chemical formula
A2.1 Structural formula
CH,OOC(CH2),CH3
A2.2 Empirical formula
A3 Relative molecular mass
n=14,16
n=19,21
When n=19 in the empirical formula, according to the 1987 international relative atomic mass: 330.50. A3.1
When n=21 in the empirical formula, according to the 1987 international relative atomic mass: 358.56. A3.2The average relative molecular mass of this product is: 344.53. Additional remarks:
This standard is proposed by the China Light Industry Association.
This standard is under the jurisdiction of the National Food Fermentation Standardization Center and the Food Hygiene Supervision and Inspection Institute of the Ministry of Health. This standard was drafted by the Guangzhou Food Additive Technology Development Company and assisted by the Guangdong Provincial Food Hygiene Supervision and Inspection Institute. The main drafters of this standard are Xie Guoqiang, Chen Zhiwei, Liang Yingtao, Huang Qingrui and Dai Ying. 54
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