Paper based laminated material for fresh-keeping package of liquid food (gable top packaging)
Some standard content:
GB18706—2002
Articles 5.3, 5.4, 5.5 and Chapter 7 of this standard are mandatory, and the rest are recommended. This standard is proposed by the China Association for Standardization. This standard is under the jurisdiction of China National Packaging Corporation. The main drafting units of this standard are: China Association for Standardization, China Packaging Product Quality Certification Center, Aseptic Packaging Committee of China Packaging Technology Association, International Paper (Shanghai) Co., Ltd., Shandong Quanlin Paper Co., Ltd. The main drafters of this standard are: Li Shiyuan, Li Shuliang, Zhou Yiwen, Li Donghua, Xu Yaoming, Wang Li, Li Hao The participating drafting units of this standard are: Tetra Pak (China) Co., Ltd., Norway ELOPAK Company, Gulin Paper Industry (Shanghai) Co., Ltd., etc. 435
1 Scope
National Standard of the People's Republic of China
Paper based laminated material for fresh-keeping package of liquid food (gable top packaging)
Paper based laminated material for fresh-keeping package of liquid food (gable top packaging) GB18706--2002
This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of paper based laminated material for fresh-keeping package of liquid food.
This standard applies to composite materials made of base paper as the matrix and plastics for liquid food fresh-keeping packaging (referred to as gable top packaging). This standard also applies to composite materials made of base paper as the matrix and plastics, aluminum foil or other barrier materials for hot filling of liquid food (referred to as hot filling gable top packaging). 2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard was published, the versions shown were all valid. All standards will be revised. All parties using this standard should explore the possibility of using the latest version of the following standards. GB191-2000 Pictorial markings for packaging storage and transportation
GB/T1038-~2000 Test method for air permeability of plastic film GB/T2679.3—1996 Determination of stiffness of paper and paperboard GB/T2828-1987 Batch inspection counting sampling procedures and sampling tables (applicable to inspection of continuous batches) GB/T3561—1989 Analysis method for hygienic standards of base paper for food packaging GB 4789. 2---19941
Food hygiene microbiological examination Determination of total colony count GB4789.3-1994 Food hygiene microbiological examination Determination of coliform group GB4789.151994 Food hygiene microbiological examination Count of molds and yeasts GB/T5009.60--1996 Analysis method of hygienic standard for polyethylene, polystyrene and polypropylene molded products for food packaging GB/T8808-1988 Peel test method for soft composite plastic materials GB9683-1988 Hygienic standard for composite food packaging bags GB11680-1989 Hygienic standard for base paper for food packaging GB/T130221991 Test method for tensile properties of plastic films 3 Definitions
This standard adopts the following definitions.
3.1 Liquid food
Includes liquids, liquids with particles, slurries and other foods that can flow in pipes. 3.2 Fresh-keeping packaging
Packaging and sealing sterilized liquid food in sterilized or unsterilized containers, using low-temperature refrigeration methods to keep liquid food fresh and hygienic.
3.3 Overlap
GB18706—2002
Sealing method in which the outer surface of the material contacts the inner surface of the material in contact with food. 3.4 Butt||Sealing method in which the inner surfaces of the material in contact with food contact each other. 3.5 Reverse folding
The material is folded outward from the surface in contact with food to prevent the longitudinal seam and the cross section of the bottom of the material from directly contacting food when sealed. 4 Product classification
According to the requirements of food characteristics, it can be divided into two categories: with barrier layer and without barrier layer; according to the sealing method, it can be divided into two categories: ordinary sealing and reverse folding edge sealing; according to the opening and drinking method, it can be divided into tear-off type, screw-on type and other types. 5 Technical requirements
5.1 Appearance quality
5.1.1 No pollution, no dust, no burrs. 5.1.2 The printed pattern is clear and complete, without obvious deformation and color difference, no defects and misprints. 5.1.3 The inner and outer surfaces are flat, without wrinkles, holes, cracks, bubbles, and the aluminum foil or barrier layer plastic film has no defects. 5.1.4 The indentation line is straight and without cracks
5.2 Dimension and quality deviation
5.2.1 The dimension and quality deviation shall comply with the provisions in Table 1. Table 1
Quantity of inner plastic film
Quantity of outer plastic film
Dimension and mass deviation
Allowable deviation
≥20 g/m2
≥12 g/m2
5.2.2 The dimensional deviation of the printed pattern shall comply with the provisions in Table 2. Table 2 Dimensional deviation of the printed pattern
Overprint accuracy
Relative position of the indentation line and the printed pattern
Relative position of each cutting edge and the printed pattern 5.3 Requirements for the section of paper-based composite materials
Allowable deviation/mm
The section of the composite material (cardboard section) is allowed to be in direct contact with the packaged object; the section of the composite material used for packaging of oil, alcoholic liquid food, etc. must be protected (reverse folding method). 5.4 Physical and mechanical properties
The physical and mechanical properties shall comply with the provisions in Table 3. 437
Tensile strength
Sealing strength
Peeling strength of inner plastic film
Adhesion between composite plastic film and paper
Oxygen permeability
5.5 Hygienic indexes
GB 187062002
Table 3 Physical and mechanical properties
N/15mm
N/15mm
cm*/(m2 . 24 h - 0.1 MPa)
5.5.1 The hygienic indexes of materials shall comply with the provisions of GB9683. 5.5.2 The microbiological indexes of base paper and board shall comply with the provisions of Table 4. Longitudinal ≥35
Horizontal ≥15
Overlap ≥150
Butt joint ≥20
≤1.0 (only for barrier layer)
Product capacity <500mL
Longitudinal ≥16
500mL≤Product capacity ≤1000mLLongitudinal ≥18Horizontal ≥9
Product capacity>1 000mL
Table 4 Microbiological indicators of base paper and board
Total number of bacteria/(pieces/g)
Escherichia coli/(pieces/100g)
Pathogenic bacteria (referring to intestinal pathogenic bacteria and pathogenic cocci) 5.5.3 The hygienic indicators of the surface in contact with food shall comply with the requirements in Table 5
According to GB11680
According to GB11680
Product Table 5 Microbiological indicators of food contact surfaces
Total number of bacteria/(individuals/cm2)
Coliform group
Pathogenic bacteria (referring to intestinal pathogenic bacteria, pathogenic cocci) Fungi
Not to be detected
Not to be detected
Not to be detected
Vertical ≥20
Horizontal ≥10
5.5.4 Recycled paper is not allowed to be used to make base paperboard. The printing ink, adhesive, flap, additives, etc. used shall comply with the relevant national health standards.
6 Inspection method
6.1 The appearance quality shall be inspected by visual inspection under natural light. 6.2 The dimensional deviation and the dimensional deviation of the printed pattern (excluding overprint accuracy) shall be inspected with a vernier caliper with a scale value not greater than 0.1mm. 6.3 Quantitative inspection of the inner and outer plastic films.
6.3.1 Inspection instruments
A balance with an accuracy of 0.001g, a mixture of toluene and ethanol in a ratio of 1:1, and a constant temperature water bath. 6.3.2 Inspection conditions: Use a constant temperature water bath to heat the mixture of toluene and ethanol to 60°C ± 5°C. 6.3.3 Inspection procedures
GB 18706—2002
6.3.3.1 Cut three samples of 50cm2 or 100cm2 according to the size of the product; 6.3.3.2 Soak the sample in the mixture of toluene and ethanol for 10 minutes, gently separate the plastic film, and then place it for 120 minutes; 6.3.3.3 If the paper fibers adhering to the film cannot be completely removed after one soaking, it is allowed to be gently wiped with a soft eraser, and then repeated soaking. 6.3.3.4 Weigh the three samples separately on a balance and convert them into grams per square meter (g/m2) to obtain the quantitative value of the inner or outer plastic film. The result shall be expressed as the average value of the three samples, accurate to 1 decimal place. 6.4 The overprint accuracy in the dimensional deviation of the printed pattern shall be tested with a 10x scale magnifying glass. 6.5 The tensile strength shall be tested in accordance with the provisions of GB/T13022. For type III samples, the test speed shall be 100mm/min±10mm/min. 6.6 Sealing strength test.
6.6.1 Instrument
6.6.1.1 Testing machine: The measured indication shall be between 15% and 85% of the full scale of the dial, and the reading error shall be within ±1%. 6.6.1.2 Vernier caliper: accuracy (.02mm. 6.6.1.3 Ruler: accuracy 1mm.
6.6.2 Samples
Sampling method: For semi-finished products that have been sealed longitudinally, take samples in the direction parallel to the longitudinal seam for sealing and check the strength of the butt seal. Take samples in the direction perpendicular to the longitudinal seam with the longitudinal seam as the center point and check the existing longitudinal seam as the overlap seal. The sealing method can be determined by each manufacturer.
6.6.3 Sample size
The sample is rectangular: length 100mm ± 1mm, width 15mm ± 0.1mm. When it is not possible to obtain a sample with an unfolded length of 100mm ± 1mm, it is allowed to use adhesive tape to bond the same material from both ends to achieve the specified size of the sample. 6.6. 4 Number of specimens
No less than 10 samples shall be taken each time. The test result shall be the average value of the 10 specimens, expressed in N/15mm, with 3 significant figures.
6.6.5 Inspection steps
The specimens shall be conditioned for 4 hours at a temperature of 23°C±2°C. Spread the conditioned specimen 180° with the sealing part as the center line, and clamp the two ends of the specimen on the fixture of the testing machine. The longitudinal axis of the testing machine shall coincide with the upper and lower center lines of the specimen, and the tightness shall be appropriate to prevent the specimen from slipping or breaking in the fixture. The distance between the fixtures is 50mm, the test speed is 100mm/min±10mm/min, and the maximum load when the specimen breaks is read. If the specimen breaks in the fixture or during bonding If the strip is broken, the sample is discarded and another sample is taken for replacement. 6.7 The peel strength of the inner plastic film shall be tested in accordance with Method A in GB/T8808-1988. 6.8 Test the adhesion between the composite plastic film and paper. First, cut the material along the longitudinal seam, remove the overlapping part of the longitudinal seam, and cut the sample into the largest rectangle. Starting from one corner of the sample, peel it apart between the paper and the composite PE layer with force, slowly tear off the composite layer, and visually inspect the percentage of the area with paper fibers on the exposed composite plastic surface. Repeat 3 times and the worse result shall prevail. 6.9 The oxygen permeability shall be tested in accordance with the provisions of GB/T1038. 6.10 The stiffness shall be tested in accordance with the provisions of GB/T2679.3. 6.11 The hygienic indicators of the material shall be in accordance with (GB/T5009.60 6.12 The microbial indicators of base paper shall be tested according to the method specified in GB3561, and the total bacterial count shall be tested according to the provisions of GB4789.2.
6.13 Microbial inspection of the surface of materials in contact with food. 6.13.1 Sampling
In a sterile room, cut the sample along the longitudinal seam and cut it into the largest rectangular shape. Measure the area to an accuracy of 0.1 cm2. Take 100 mL of sterile water and repeatedly wipe the surface to be tested with sterile cotton soaked in sterile water. Put the cotton ball back into the sterile water and shake it well. 6.13.2 Test the total bacterial count, coliform group, pathogenic bacteria and yeast in accordance with the provisions of GB4789.2, GB4789.3 and GB4789.15. 439
GB 18706-2002
6.13.3 Calculate the total bacterial count per square centimeter based on the sample area. 6.13.4 Make three parallel samples and calculate the average of the total number of bacteria, accurate to 1 decimal place. 7 Inspection rules
7.1 Product inspection is divided into factory inspection and type inspection. 7.2 Each batch of materials shall be subject to factory inspection before leaving the factory. Type inspection shall be carried out in any of the following circumstances: a) when the variety or source of raw materials, product structure, or production process changes; b) when production is resumed after suspension for more than 6 months; c) when continuous production is completed for one year;
d) when new products are put into production.
7.3 The items of factory inspection or type inspection shall be carried out as specified in Table 6. Table 6 Inspection items
Appearance quality
Dimensional deviation
Dimensional deviation of printed pattern
Physical and mechanical properties
Sanitary indicators of materials
Sanitary indicators of base paper and board
Microorganisms on the surface of product in contact with food
Factory inspection
Only check length and width
Only check tensile strength and
Sealing strength
Type inspection
Inspection quantity
IL=【in 1987, secondary sampling,
According to GB/T 2828--
AQL=2.5 provisions
According to GB/T28281987 IL.=1, secondary sampling, AQI=2.5 provisions
According to GB/T2828.-1987 1I,=Ⅱ, secondary sampling, AQL=2.5 provisions
Randomly select a group of samples from the samples that have been drawn for inspection Randomly select a group of samples from the samples that have been drawn for inspection Randomly select a group of samples from the samples that have been drawn for inspection Randomly select a group of samples from the samples that have been drawn for inspection Note: For manufacturers of raw paper and paperboard using imported products, each batch of purchases must be accompanied by a copy of the written materials issued by the paperboard manufacturer that have been tested by the relevant legal laboratories to prove that its hygiene indicators meet the requirements of this standard. 7.4 Group batches for factory inspection and type inspection
The same variety, same specification, and the same delivery are considered a batch. Each batch shall not exceed 1,000,000 pieces. 7.5 Quality determination of factory inspection and type inspection 7.5.1 The quality determination of appearance quality, dimensional deviation and dimensional deviation of printed patterns shall be in accordance with the provisions of the AQI.=2.5ILI secondary sampling method in GB/T2828--1987.
7.5.2 For the inspection of other items, if more than one (including one) sample does not meet the technical requirements, double the sample for re-inspection. 7.5.3 When re-inspecting other items, if all items meet the technical requirements, the batch of products is still qualified; if more than one (including one) item does not meet the technical requirements, the batch of products is unqualified. 8 Marking, packaging, transportation and storage
8.1 The materials shall be tightly packed in clean and hygienic corrugated boxes. 8.2 The name, quantity, specification, manufacturer name, batch number, production date and manufacturer address of the material shall be marked on the package. 1.10
GB187062002
8.3 Each batch of materials must be accompanied by documents, labels or other marks that prove their quality. 8.4 Materials should be protected from sunlight, rain, mechanical collision and contact with sharp objects during transportation. The marking method shall be in accordance with the provisions of GB191. 8.5 Materials should be stored in a clean, sanitary and well-ventilated warehouse, away from direct sunlight, heat sources and pollution sources. It is strictly forbidden to store them in the same warehouse with harmful and toxic substances. The stacking height is limited to the packaging box without deformation. 8.6 The storage period of materials shall not exceed one year from the date of production. 4415 Test steps
The sample should be conditioned for 4 hours at a temperature of 23°C ± 2°C. The conditioned sample is unfolded 180° with the sealing part as the center line, and the two ends of the sample are clamped on the fixture of the test machine. The longitudinal axis of the test machine should coincide with the upper and lower center lines of the sample, and the tightness should be appropriate to prevent the sample from slipping or breaking in the fixture. The distance between the fixtures is 50mm, the test speed is 100mm/min ± 10mm/min, and the maximum load when the sample breaks is read. If the sample breaks in the fixture or breaks at the adhesive tape, the sample is invalid and another sample is taken for replacement. 6.7 The peel strength of the inner plastic film shall be tested according to the provisions of Method A in GB/T8808-1988. 6.8 Test the adhesion between the composite plastic film and paper. The material is first cut along the longitudinal seam, the overlapping part of the longitudinal seam is removed, and the sample is cut into the largest rectangle. Starting from one corner of the sample, peel the paper and the composite PE layer apart with force, slowly tear off the composite layer, and visually inspect the area percentage of paper fibers on the exposed composite plastic surface. Repeat 3 times, and the worse result shall prevail. 6.9 Oxygen permeability shall be tested in accordance with the provisions of GB/T1038. 6.10 Stiffness shall be tested in accordance with the provisions of GB/T2679.3. 6.11 The sanitary indicators of materials shall be tested in accordance with the method specified in GB/T5009.60. 6.12 The microbial indicators of base paper shall be tested in accordance with the method specified in GB3561, and the total bacterial count shall be tested in accordance with the provisions of GB4789.2.
6.13 Microbial inspection of the surface of materials in contact with food. 6.13.1 Sampling
In a sterile room, cut the sample along the longitudinal seam and cut it into the largest rectangular shape. Measure the area to an accuracy of 0.1 cm2. Take 100 mL of sterile water and repeatedly wipe the surface to be tested with sterile cotton soaked in sterile water. Put the cotton ball back into the sterile water and shake it well. 6.13.2 Test the total bacterial count, coliform group, pathogenic bacteria and yeast in accordance with the provisions of GB4789.2, GB4789.3 and GB4789.15. 439
GB 18706-2002
6.13.3 Calculate the total number of bacteria per square centimeter based on the sample area. 6.13.4 Make three parallel samples and calculate the average of the total number of bacteria, accurate to one decimal place. 7 Inspection rules
7.1 Product inspection is divided into factory inspection and type inspection. 7.2 Each batch of materials must be inspected before leaving the factory. Type inspection should be carried out in any of the following situations: a) when the variety or source of raw materials, product structure, or production process changes; b) when production is resumed after suspension for more than 6 months; c) when continuous production is completed for one year;
d) when new products are put into production.
7.3 Factory inspection or type inspection items shall be carried out as specified in Table 6. Table 6 Inspection items
Appearance quality
Dimensional deviation
Dimensional deviation of printed pattern
Physical and mechanical properties
Sanitary indicators of materials
Sanitary indicators of base paper and board
Microorganisms on the surface of product in contact with food
Factory inspection
Only check length and width
Only check tensile strength and
Sealing strength
Type inspection
Inspection quantity
IL=【in 1987, secondary sampling,
According to GB/T 2828--
AQL=2.5 provisions
According to GB/T28281987 IL.=1, secondary sampling, AQI=2.5 provisions
According to GB/T2828.-1987 1I,=Ⅱ, secondary sampling, AQL=2.5 provisions
Randomly select a group of samples from the samples that have been drawn for inspection Randomly select a group of samples from the samples that have been drawn for inspection Randomly select a group of samples from the samples that have been drawn for inspection Randomly select a group of samples from the samples that have been drawn for inspection Note: For manufacturers of raw paper and paperboard using imported products, each batch of purchases must be accompanied by a copy of the written materials issued by the paperboard manufacturer that have been tested by the relevant legal laboratories to prove that its hygiene indicators meet the requirements of this standard. 7.4 Group batches for factory inspection and type inspection
The same variety, same specification, and the same delivery are considered a batch. Each batch shall not exceed 1,000,000 pieces. 7.5 Quality determination of factory inspection and type inspection 7.5.1 The quality determination of appearance quality, dimensional deviation and dimensional deviation of printed patterns shall be in accordance with the provisions of the AQI.=2.5ILI secondary sampling method in GB/T2828--1987.
7.5.2 For the inspection of other items, if more than one (including one) sample does not meet the technical requirements, double the sample for re-inspection. 7.5.3 When re-inspecting other items, if all items meet the technical requirements, the batch of products is still qualified; if more than one (including one) item does not meet the technical requirements, the batch of products is unqualified. 8 Marking, packaging, transportation and storage
8.1 The materials shall be tightly packed in clean and hygienic corrugated boxes. 8.2 The name, quantity, specification, manufacturer name, batch number, production date and manufacturer address of the material shall be marked on the package. 1.10
GB187062002
8.3 Each batch of materials must be accompanied by documents, labels or other marks that prove their quality. 8.4 Materials should be protected from sunlight, rain, mechanical collision and contact with sharp objects during transportation. The marking method shall be in accordance with the provisions of GB191. 8.5 Materials should be stored in a clean, sanitary and well-ventilated warehouse, away from direct sunlight, heat sources and pollution sources. It is strictly forbidden to store them in the same warehouse with harmful and toxic substances. The stacking height is limited to the packaging box without deformation. 8.6 The storage period of materials shall not exceed one year from the date of production. 4415 Test steps
The sample should be conditioned for 4 hours at a temperature of 23°C ± 2°C. The conditioned sample is unfolded 180° with the sealing part as the center line, and the two ends of the sample are clamped on the fixture of the test machine. The longitudinal axis of the test machine should coincide with the upper and lower center lines of the sample, and the tightness should be appropriate to prevent the sample from slipping or breaking in the fixture. The distance between the fixtures is 50mm, the test speed is 100mm/min ± 10mm/min, and the maximum load when the sample breaks is read. If the sample breaks in the fixture or breaks at the adhesive tape, the sample is invalid and another sample is taken for replacement. 6.7 The peel strength of the inner plastic film shall be tested according to the provisions of Method A in GB/T8808-1988. 6.8 Test the adhesion between the composite plastic film and paper. The material is first cut along the longitudinal seam, the overlapping part of the longitudinal seam is removed, and the sample is cut into the largest rectangle. Starting from one corner of the sample, peel the paper and the composite PE layer apart with force, slowly tear off the composite layer, and visually inspect the area percentage of paper fibers on the exposed composite plastic surface. Repeat 3 times, and the worse result shall prevail. 6.9 Oxygen permeability shall be tested in accordance with the provisions of GB/T1038. 6.10 Stiffness shall be tested in accordance with the provisions of GB/T2679.3. 6.11 The sanitary indicators of materials shall be tested in accordance with the method specified in GB/T5009.60. 6.12 The microbial indicators of base paper shall be tested in accordance with the method specified in GB3561, and the total bacterial count shall be tested in accordance with the provisions of GB4789.2.
6.13 Microbial inspection of the surface of materials in contact with food. 6.13.1 Sampling
In a sterile room, cut the sample along the longitudinal seam and cut it into the largest rectangular shape. Measure the area to an accuracy of 0.1 cm2. Take 100 mL of sterile water and repeatedly wipe the surface to be tested with sterile cotton soaked in sterile water. Put the cotton ball back into the sterile water and shake it well. 6.13.2 Test the total bacterial count, coliform group, pathogenic bacteria and yeast in accordance with the provisions of GB4789.2, GB4789.3 and GB4789.15. 439
GB 18706-2002
6.13.3 Calculate the total number of bacteria per square centimeter based on the sample area. 6.13.4 Make three parallel samples and calculate the average of the total number of bacteria, accurate to one decimal place. 7 Inspection rules
7.1 Product inspection is divided into factory inspection and type inspection. 7.2 Each batch of materials must be inspected before leaving the factory. Type inspection should be carried out in any of the following situations: a) when the variety or source of raw materials, product structure, or production process changes; b) when production is resumed after suspension for more than 6 months; c) when continuous production is completed for one year;
d) when new products are put into production.
7.3 Factory inspection or type inspection items shall be carried out as specified in Table 6. Table 6 Inspection items
Appearance quality
Dimensional deviation
Dimensional deviation of printed pattern
Physical and mechanical properties
Sanitary indicators of materials
Sanitary indicators of base paper and board
Microorganisms on the surface of product in contact with food
Factory inspection
Only check length and width
Only check tensile strength and
Sealing strength
Type inspection
Inspection quantity
IL=【in 1987, secondary sampling,
According to GB/T 2828--
AQL=2.5 provisions
According to GB/T28281987 IL.=1, secondary sampling, AQI=2.5 provisions
According to GB/T2828.-1987 1I,=Ⅱ, secondary sampling, AQL=2.5 provisions
Randomly select a group of samples from the samples that have been drawn for inspection Randomly select a group of samples from the samples that have been drawn for inspection Randomly select a group of samples from the samples that have been drawn for inspection Randomly select a group of samples from the samples that have been drawn for inspection Note: For manufacturers of raw paper and paperboard using imported products, each batch of purchases must be accompanied by a copy of the written materials issued by the paperboard manufacturer that have been tested by the relevant legal laboratories to prove that its hygiene indicators meet the requirements of this standard. 7.4 Group batches for factory inspection and type inspection
The same variety, same specification, and the same delivery are considered a batch. Each batch shall not exceed 1,000,000 pieces. 7.5 Quality determination of factory inspection and type inspection 7.5.1 The quality determination of appearance quality, dimensional deviation and dimensional deviation of printed patterns shall be in accordance with the provisions of the AQI.=2.5ILI secondary sampling method in GB/T2828--1987.
7.5.2 For the inspection of other items, if more than one (including one) sample does not meet the technical requirements, double the sample for re-inspection. 7.5.3 When re-inspecting other items, if all items meet the technical requirements, the batch of products is still qualified; if more than one (including one) item does not meet the technical requirements, the batch of products is unqualified. 8 Marking, packaging, transportation and storage
8.1 The materials shall be tightly packed in clean and hygienic corrugated boxes. 8.2 The name, quantity, specification, manufacturer name, batch number, production date and manufacturer address of the material shall be marked on the package. 1.10
GB187062002
8.3 Each batch of materials must be accompanied by documents, labels or other marks that prove their quality. 8.4 Materials should be protected from sunlight, rain, mechanical collision and contact with sharp objects during transportation. The marking method shall be in accordance with the provisions of GB191. 8.5 Materials should be stored in a clean, sanitary and well-ventilated warehouse, away from direct sunlight, heat sources and pollution sources. It is strictly forbidden to store them in the same warehouse with harmful and toxic substances. The stacking height is limited to the packaging box without deformation. 8.6 The storage period of materials shall not exceed one year from the date of production. 4413 The factory inspection or type inspection items shall be carried out in accordance with the provisions in Table 6. Table 6 Inspection items
Appearance quality
Dimensional deviation
Dimensional deviation of printed pattern
Physical properties and mechanical properties
Sanitary indicators of materials
Sanitary indicators of base paper and board
Microorganisms on the surface of product in contact with food
Factory inspection
Only check the length and width
Only check the tensile strength andbzxZ.net
Sealing strength
Type inspection
Inspection quantity
IL=【in 1987, secondary sampling,
According to GB/T 2828--
AQL=2.5 provisions
According to GB/T28281987 IL.=1, secondary sampling, AQI=2.5 provisions
According to GB/T2828.-1987 1I,=Ⅱ, secondary sampling, AQL=2.5 provisions
Randomly select a group of samples from the samples that have been drawn for inspection Randomly select a group of samples from the samples that have been drawn for inspection Randomly select a group of samples from the samples that have been drawn for inspection Randomly select a group of samples from the samples that have been drawn for inspection Note: For manufacturers of raw paper and paperboard using imported products, each batch of purchases must be accompanied by a copy of the written materials issued by the paperboard manufacturer that have been tested by the relevant legal laboratories to prove that its hygiene indicators meet the requirements of this standard. 7.4 Group batches for factory inspection and type inspection
The same variety, same specification, and the same delivery are considered a batch. Each batch shall not exceed 1,000,000 pieces. 7.5 Quality determination of factory inspection and type inspection 7.5.1 The quality determination of appearance quality, dimensional deviation and dimensional deviation of printed patterns shall be in accordance with the provisions of the AQI.=2.5ILI secondary sampling method in GB/T2828--1987.
7.5.2 For the inspection of other items, if more than one (including one) sample does not meet the technical requirements, double the sample for re-inspection. 7.5.3 When re-inspecting other items, if all items meet the technical requirements, the batch of products is still qualified; if more than one (including one) item does not meet the technical requirements, the batch of products is unqualified. 8 Marking, packaging, transportation and storage
8.1 The materials shall be tightly packed in clean and hygienic corrugated boxes. 8.2 The name, quantity, specification, manufacturer name, batch number, production date and manufacturer address of the material shall be marked on the package. 1.10
GB187062002
8.3 Each batch of materials must be accompanied by documents, labels or other marks that prove their quality. 8.4 Materials should be protected from sunlight, rain, mechanical collision and contact with sharp objects during transportation. The marking method shall be in accordance with the provisions of GB191. 8.5 Materials should be stored in a clean, sanitary and well-ventilated warehouse, away from direct sunlight, heat sources and pollution sources. It is strictly forbidden to store them in the same warehouse with harmful and toxic substances. The stacking height is limited to the packaging box without deformation. 8.6 The storage period of materials shall not exceed one year from the date of production. 4413 The factory inspection or type inspection items shall be carried out in accordance with the provisions in Table 6. Table 6 Inspection items
Appearance quality
Dimensional deviation
Dimensional deviation of printed pattern
Physical properties and mechanical properties
Sanitary indicators of materials
Sanitary indicators of base paper and board
Microorganisms on the surface of product in contact with food
Factory inspection
Only check the length and width
Only check the tensile strength and
Sealing strength
Type inspection
Inspection quantity
IL=【in 1987, secondary sampling,
According to GB/T 2828--
AQL=2.5 provisions
According to GB/T28281987 IL.=1, secondary sampling, AQI=2.5 provisions
According to GB/T2828.-1987 1I,=Ⅱ, secondary sampling, AQL=2.5 provisions
Randomly select a group of samples from the samples that have been drawn for inspection Randomly select a group of samples from the samples that have been drawn for inspection Randomly select a group of samples from the samples that have been drawn for inspection Randomly select a group of samples from the samples that have been drawn for inspection Note: For manufacturers of raw paper and paperboard using imported products, each batch of purchases must be accompanied by a copy of the written materials issued by the paperboard manufacturer that have been tested by the relevant legal laboratories to prove that its hygiene indicators meet the requirements of this standard. 7.4 Group batches for factory inspection and type inspection
The same variety, same specification, and the same delivery are considered a batch. Each batch shall not exceed 1,000,000 pieces. 7.5 Quality determination of factory inspection and type inspection 7.5.1 The quality determination of appearance quality, dimensional deviation and dimensional deviation of printed patterns shall be in accordance with the provisions of the AQI.=2.5ILI secondary sampling method in GB/T2828--1987.
7.5.2 For the inspection of other items, if more than one (including one) sample does not meet the technical requirements, double the sample for re-inspection. 7.5.3 When re-inspecting other items, if all items meet the technical requirements, the batch of products is still qualified; if more than one (including one) item does not meet the technical requirements, the batch of products is unqualified. 8 Marking, packaging, transportation and storage
8.1 The materials shall be tightly packed in clean and hygienic corrugated boxes. 8.2 The name, quantity, specification, manufacturer name, batch number, production date and manufacturer address of the material shall be marked on the package. 1.10
GB187062002
8.3 Each batch of materials must be accompanied by documents, labels or other marks that prove their quality. 8.4 Materials should be protected from sunlight, rain, mechanical collision and contact with sharp objects during transportation. The marking method shall be in accordance with the provisions of GB191. 8.5 Materials should be stored in a clean, sanitary and well-ventilated warehouse, away from direct sunlight, heat sources and pollution sources. It is strictly forbidden to store them in the same warehouse with harmful and toxic substances. The stacking height is limited to the packaging box without deformation. 8.6 The storage period of materials shall not exceed one year from the date of production. 441
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