Some standard content:
ICS55.040
Packaging Industry Standard of the People's Republic of China
BB/T0058—2011
Wrapping multilayer co-extrusion overloaded membrane bags2011-06-15Published
2011-10-01Implementation
Published by the Ministry of Industry and Information Technology of the People's Republic of China
Announcement of the Ministry of Industry and Information Technology of the People's Republic of China
No. 18 of 2011
The Ministry of Industry and Information Technology approved 199 industry standards including "General Technical Conditions for National Stringed Musical Instruments" (see the attachment for standard number, name, main contents and starting implementation date), including: 77 light industry standards, 3 packaging industry standards, 8 chemical industry standards, 2 metallurgical industry standards and 109 shipbuilding industry standards, which are now announced. The above light industry standards are published by China Light Industry Press, packaging industry standards are published by China Planning Press, chemical industry standards are published by Chemical Industry Press, metallurgical industry standards are published by Metallurgical Industry Press, and shipbuilding industry standards are published by China Shipbuilding Industry Comprehensive Technology and Economic Research Institute.
Appendix: Numbers, names and starting implementation dates of 3 packaging industry standards Ministry of Industry and Information Technology of the People's Republic of China June 15, 2011
Appendix:
Numbers, names and starting implementation dates of 3 packaging industry standards Standard number
BB/T 0013—2011
BB/T 0014—2011
BB/T0058-—2011
Standard name
Soft plastic folding packaging container
Zipper self-sealing bag
Multi-layer co-extruded heavy-duty film and bag for packaging
Replaced standard
BB/T0013—1999
BB/T0014—1999
Start date of implementation
2011-10-01| |tt||2011-10-01
2011-10-01
Normative references
Terms and definitions
Classification…
Test methods:
Inspection rules·
Marking, packaging, transportation and storage
BB/T0058—2011
BB/T0058-2011
This standard is proposed by the China Packaging Federation. Foreword
This standard is under the jurisdiction of the National Technical Committee for Packaging Standardization. The main drafting units of this standard are: Shehong Branch of Sichuan Meifeng Chemical Co., Ltd., Nanjing Yangzi Plastic Chemical Co., Ltd., Tianjin Jinghua Petrochemical Co., Ltd., and Beijing Yanshan Jilian Petrochemical Co., Ltd. The main drafters of this standard are: Cai Xingfu, Tang Jinzhong, Liu Keyong, Yong Yurong, Huo Ying, Yi Xianghua, Hu Yong, and Zhao Haiying. 1 Scope
Multilayer co-extruded heavy-duty films and bags for packaging
BB/T0058-2011
This standard specifies the terms and definitions, classification, requirements, test methods, inspection rules, as well as marking, packaging, transportation and storage of multilayer co-extruded heavy-duty films and bags for packaging (hereinafter referred to as heavy-duty films and bags). This standard applies to multilayer co-extruded blow-molded heavy-duty films (including FFS films) and bags with high strength produced by multilayer co-extrusion blow molding process using polyethylene (PE), polypropylene (PP) and other resins as the main raw materials. Single-layer extrusion blow-molded heavy-duty films and bags can also refer to this standard. 2 Normative references
The following documents are indispensable for the application of this document. For all dated references, only the version with the date is applicable to this document. For all undated references, the latest version (including all amendments) is applicable to this document. GB/T191 Pictorial symbols for packaging, storage and transportation (ISO780:1997) GB/T1040.32006 Determination of tensile properties of plastics Part 3: Test conditions for films and sheets (IS0527-31995)
GB/T16578.1 Determination of tear resistance of plastic films and sheets Part 1: Trouser tear method (ISO6383-1:1983)
GB/T2035
Plastic terms and definitions (IS0472:1999) GB/T2828.1 Sampling inspection procedures for attributes Part 1: Sampling plan for batch inspection based on acceptance quality limit (AQL) (ISO2859-1:1999)
GB/T2918 Standard environment for conditioning and testing of plastic specimens (ISO291:1997) GB/T4857.5 Drop test method for packaging and transport packages (ISO2248:1985) GB/T5009.60- 2003 Analytical methods for hygienic standards of polyethylene, polystyrene and polypropylene molded products for food packaging GB/T6672-2001 Determination of thickness of plastic film and sheeting - Mechanical measurement method (ISO4593:1993) Determination of length and width of plastic film and sheeting (IS04592:1992) GB/T6673-2001
GB/T9639.1-2008 Test method for impact resistance of plastic film and sheeting - Free falling dart method - Part 1: Ladder Grade method (ISO7765-1:1988)
GB9687 Hygienic standard for polyethylene molded products for food packaging GB9688 Hygienic standard for polypropylene molded products for food packaging GB/T10006 Determination of friction coefficient of plastic film and sheet (IS08295:1986) QB/T2358 Test method for heat sealing strength of plastic film packaging bags 3 Terms and definitions
The terms and definitions established in GB/T2035 and the following terms and definitions apply to this standard. 1
BB/T0058—2011
Wrapping multilayer co-extrusion overloaded membrane bags Using multiple extruders, polyethylene, polypropylene and other resins (additives can be added) are extruded respectively, and the multilayer co-extrusion film and bag with a loading mass of usually more than 10kg is obtained through a common die head. 3.2
FFS membraneFFS membrane
A heavy-duty membrane that can realize the continuous one-time automatic forming (form)-opening filling (fill) process, referred to as FFS membrane. 4 Classification
According to the product form, it is divided into two types: film and bag. 4.1
-heating sealing (seal) and other multiple processes and operations are divided into three types: A, B, and C according to the applicable loading mass. Product models and applicable loading masses are shown in Table 1.4.2
Table 1 Product models and applicable loading masses
Applicable loading mass, kg
5 Requirements
5.1 Appearance quality
5.1.1 There shall be no defects such as bubbles, perforations, ruptures, ribs, poor plasticization, water marks, clouds, streaks, fish eyes, stiff blocks, impurities, wrinkles, scratches and pollution that may hinder use.
5.1.2 Printed patterns, texts, marks, etc. should be clear, firm and accurately positioned. 5.1.3 If the film surface is required to be embossed, the embossing should be noticeable to the touch. 5.1.4 The number of joints in the film roll shall not exceed 1, and there shall be obvious marks at the joints. 5.2 Allowable deviation
5.2.1 Allowable deviation of width and length.
See Table 2 for allowable deviation of width and length.
Allowable deviation of width and length
Unit is millimeter
Width (folding diameter)
Folding depth
Allowable deviation of thickness.
Allowable deviation
See Table 3 for allowable deviation of thickness.
Thickness, mm
0.120~0.140
0.141~0.160
0.161~0.180
5.3 Physical and mechanical properties
The physical and mechanical properties shall conform to the requirements of Table 4.
Tensile strength, MPa
Nominal strain at break, %
Tensile yield stress, MPa
Trouser tear strength, kN/m
Friction coefficient
Impact damage mass, product
Table 3 Thickness tolerance
Limit deviation, mm
Table 4 Physical and mechanical properties
≥500
≥120
Dynamic friction
Static friction
Folding edge
Drop resistance
Heat resistance
Cold resistance
Heat sealing strength (only for bags), N/15mm0.3~0.8
≥500
≥300
Allowable deviation
≥550
≥550
≥100
≥120
≥600
≥300
Drop without breaking the package
BB/T00582011
Average deviation, %| |tt||≥600
≥600
≥100
≥120
≥800
≥500
No abnormal conditions such as adhesion and melting marks on the surface
No abnormal conditions such as damage and cracks on the surface
Note: Drop resistance, heat resistance and cold resistance are optional test items, which shall be agreed upon by the supply and demand parties. ≥30
BB/T0058—2011
5.4 Hygienic performance requirements
The hygienic performance of products directly used for food packaging shall comply with the provisions of GB9687 and GB9688. 6 Test methods
6.1 Sample state adjustment and standard test environment The sample state adjustment and test standard environment shall be carried out in accordance with the provisions of GB/T2918, and the sample pretreatment time under the standard environment state shall be more than 4h. The test environment conditions are 23℃±2℃ and 50%±10% relative humidity. 6.2 Appearance quality
Appearance quality is visually inspected under natural light.
6.3 Dimensions and specifications
6.3.1 Width, length and folding depth.
Perform in accordance with the provisions of GB/T6673-2001. 6.3.2 Thickness.
Perform in accordance with the provisions of CB/T6672-2001. The limit deviation of thickness shall be calculated according to formula (1): At=tmax(tmin)-to
Where:
Thickness limit deviation, in millimeters (mm); tmax(tmm)-the maximum (minimum) value of the measured thickness deviation, in millimeters (mm); to
Nominal thickness, in millimeters (mm). The average deviation of thickness shall be calculated according to formula (2): = (t, - to)
Wherein:
t—average deviation of thickness, in percent (%); t—average thickness, in millimeters (mm); to—nominal thickness, in millimeters (mm). 6.4 Physical and mechanical properties
6.4.1 Tests on tensile strength, nominal strain at break and tensile yield stress. (1)
(2)
According to the provisions of CB/T1040.3-2006, take type 2 specimens with a width of 10 mm, an initial distance of 50 mm between the clamps, and a test speed of (500±50) mm/min. Take 5 pieces of longitudinal and transverse smooth surface materials for the test. 6.4.2 Trouser tear strength test.
Perform according to the provisions of GB/T16578.1.
6.4.3 Impact damage quality test.
According to GB/T9639.1-2008A method, select smooth surface materials for testing. 6.4.4 Friction coefficient test.
According to GB/T10006, select smooth front materials for testing. 6.4.5 Drop resistance test.
6.4.5.1 The test environment and test site shall be carried out in accordance with the provisions of CB/T4857.5. 6.4.5.2 Number of samples: 3 samples shall be randomly selected. 6.4.5.3 Test method: You may choose one of the following two methods and carry out in accordance with the provisions of CB/T4857.5. Place the front of the sample at a height of 3m and let it fall freely once. a)
BB/T0058—2011
Place the A and B type specimens at a height of 1.5m, and the C type specimen at a height of 1.2m. Each specimen shall be subjected to free fall once in the order of front, vertical and side b)
. 6.4.6 Heat resistance and cold resistance test.
6.4.6.1 Take 4 specimens from the test film and bag, about 300mm long and 20mm wide. 6.4.6.2 During the heat resistance test, overlap the two surfaces, apply a load of 9.8N on them, and place them in an oven at 80℃ for 1h. After taking them out, separate the two overlapping specimens immediately to check whether there are any abnormal conditions such as adhesion and melting marks on the surface. 6.4.6.3 During the cold resistance test, place the other two samples in a constant temperature box at -22℃ for more than 2 hours, take out the samples and fold them in half at 180° in the length direction to check whether there are any damage, cracks or other abnormalities on the surface of the film. 6.4.7 Heat seal strength test.
Perform in accordance with the provisions of QB/T2358.
6.5 Hygienic performance test
Perform in accordance with the provisions of CB/T5009.60-2003. 7 Inspection rules
7.1 Batch
Products are accepted in batches. Products of the same variety, same specification and continuous production are considered as a batch. The maximum batch of films shall not exceed 100 rolls, and the maximum batch of bags shall not exceed 50,000. 7.2 Inspection classification
Product inspection is divided into factory inspection and type inspection. 7.2.1 Factory inspection.
The factory inspection items are 5.1, 5.2 and 5.3, except for drop resistance, cold resistance and heat resistance. 7.2.2 Type inspection.
Type inspection items are all the contents of Part 5. Type inspection is required in any of the following situations: when a new product or old product is converted to production;
When there are major changes in raw materials, formulas, and processes that may affect product performance; c)
When continuous production for 6 months;
d) When the product is resumed after a long period of suspension; e)
When the factory inspection results are significantly different from the last type inspection; f)
When the national quality supervision agency makes a request: When the customer has special requirements.
7.3 Sampling
7.3.1 Appearance quality, size and specifications shall be subject to the normal inspection secondary sampling plan specified in GB/T2828.1, with the inspection level of II and the acceptance quality limit (AQL) of 6.5. Films shall be sampled and inspected as specified in Table 5, and bags shall be sampled and inspected as specified in Table 6. Each roll of film and bag shall be a 5
BB/T0058—2011
sample unit.
Batch N
91~150
Batch N
501~1200
1201~3200
3201~10000
10001~35000
35001~150000
Sampling and judgment plan for inspection of film appearance quality, size and specifications Sample
Sample size
Cumulative sample size
Acceptance quality Limit (AQL)
Acceptance number Ac
Sampling and judgment plan for bag appearance quality, size and specification inspection Sample size
Cumulative sample size
Unit is roll
Rejection number Re
Unit is strip
Acceptance quality limit (AQL)
Acceptance number Ac
Rejection number Re
Physical mechanical properties and hygienic properties, take one roll from each batch of products for film and 5 strips from each batch of products for bags. 7.3.2
7.4 Judgment
7.4.1 Judgment of qualified items.
7.4.1.1 Judgment of appearance quality, size and specification shall be carried out in accordance with the provisions of Table 5 and Table 6. BB/T0058—2011
7.4.1.2 If there are unqualified items in the physical and mechanical performance test, double samples should be taken from the original batch of products for re-testing of the unqualified items. If all the re-test results are qualified, the batch of products is judged to be qualified; if the re-test is still unqualified, the batch of products is unqualified. 7.4.1.3 If there are unqualified items in the hygienic performance test, the batch of products is judged to be unqualified. 7.4.2 Determination of qualified batches.
If the products are qualified according to 7.4.1.1, 7.4.1.2 and 7.4.1.3, the batch of products is qualified. 8 Marking, packaging, transportation and storage
8.1 Marking
Marking should comply with the provisions of GB/T191. Products should have qualified marks, indicating product name, specifications, quantity, batch number, manufacturer, production date, etc.
8.2 Packaging
The packaging should be firm. It can also be agreed upon by both parties. 8.3 Transportation
Handle with care during transportation, avoid mechanical collision or contact with sharp objects, avoid exposure to the sun and rain, and avoid contamination. 8.4 Storage
Products should be stored in a clean, dry, ventilated warehouse, away from heat and pollution sources, and are strictly prohibited from contact with corrosive chemicals and other harmful substances to prevent extrusion, deformation, and damage. The product storage period shall not exceed 18 months from the date of production.4 Storage
The product should be stored in a clean, dry, ventilated warehouse, away from heat and pollution sources. It is strictly forbidden to contact with corrosive chemicals and other harmful substances to prevent extrusion, deformation and damage. The storage period of the product shall not exceed 18 months from the date of production.4 Storage
The product should be stored in a clean, dry, ventilated warehouse, away from heat and pollution sources. It is strictly forbidden to contact with corrosive chemicals and other harmful substances to prevent extrusion, deformation and damage. The storage period of the product shall not exceed 18 months from the date of production.4 Storage
The product should be stored in a clean, dry, ventilated warehouse, away from heat and pollution sources. It is strictly forbidden to contact with corrosive chemicals and other harmful substances to prevent extrusion, deformation and damage. The storage period of the product shall not exceed 18 months from the date of production.4 Storage
The product should be stored in a clean, dry, ventilated warehouse, away from heat and pollution sources. It is strictly forbidden to contact with corrosive chemicals and other harmful substances to prevent extrusion, deformation and damage. The storage period of the product shall not exceed 18 months from the date of production.4 Storage
The product should be stored in a clean, dry, ventilated warehouse, away from heat and pollution sources. It is strictly forbidden to contact with corrosive chemicals and other harmful substances to prevent extrusion, deformation and damage. The storage period of the product shall not exceed 18 months from the date of production.4 Storage
The product should be stored in a clean, dry, ventilated warehouse, away from heat and pollution sources. It is strictly forbidden to contact with corrosive chemicals and other harmful substances to prevent extrusion, deformation and damage. The storage period of the product shall not exceed 18 months from the date of production.4 Storage
The product should be stored in a clean, dry, ventilated warehouse, away from heat and pollution sources. It is strictly forbidden to contact with corrosive chemicals and other harmful substances to prevent extrusion, deformation and damage. The storage period of the product shall not exceed 18 months from the date of production.4 Storage
The product should be stored in a clean, dry, ventilated warehouse, away from heat and pollution sources. It is strictly forbidden to contact with corrosive chemicals and other harmful substances to prevent extrusion, deformation and damage. The storage period of the product shall not exceed 18 months from the date of production.2 Appearance quality
Appearance quality shall be visually inspected under natural light.
6.3 Dimensions and specifications
6.3.1 Width, length and folding depth.
Perform in accordance with the provisions of GB/T6673-2001. 6.3.2 Thickness.
Perform in accordance with the provisions of CB/T6672-2001. The limit deviation of thickness shall be calculated according to formula (1): At=tmax(tmin)-to
Where:
Thickness limit deviation, in millimeters (mm); tmax(tmm)-the maximum (minimum) value of the measured thickness deviation, in millimeters (mm); to
Nominal thickness, in millimeters (mm). The average deviation of thickness shall be calculated according to formula (2): = (t, - to)
Wherein:
t—average deviation of thickness, in percent (%); t—average thickness, in millimeters (mm); to—nominal thickness, in millimeters (mm). 6.4 Physical and mechanical properties
6.4.1 Tests on tensile strength, nominal strain at break and tensile yield stress. (1)
(2)
According to the provisions of CB/T1040.3-2006, take type 2 specimens with a width of 10 mm, an initial distance of 50 mm between the clamps, and a test speed of (500±50) mm/min. Take 5 pieces of longitudinal and transverse smooth surface materials for the test. 6.4.2 Trouser tear strength test.
Perform according to the provisions of GB/T16578.1.
6.4.3 Impact damage quality test.
According to GB/T9639.1-2008A method, select smooth surface materials for testing. 6.4.4 Friction coefficient test.
According to GB/T10006, select smooth front materials for testing. 6.4.5 Drop resistance test.
6.4.5.1 The test environment and test site shall be carried out in accordance with the provisions of CB/T4857.5. 6.4.5.2 Number of samples: 3 samples shall be randomly selected. 6.4.5.3 Test method: You may choose one of the following two methods and carry out in accordance with the provisions of CB/T4857.5. Place the front of the sample at a height of 3m and let it fall freely once. a)
BB/T0058—2011
Place the A and B type specimens at a height of 1.5m, and the C type specimen at a height of 1.2m. Each specimen shall be subjected to free fall once in the order of front, vertical and side b)
. 6.4.6 Heat resistance and cold resistance test.
6.4.6.1 Take 4 specimens from the test film and bag, about 300mm long and 20mm wide. 6.4.6.2 During the heat resistance test, overlap the two surfaces, apply a load of 9.8N on them, and place them in an oven at 80℃ for 1h. After taking them out, separate the two overlapping specimens immediately to check whether there are any abnormal conditions such as adhesion and melting marks on the surface. 6.4.6.3 During the cold resistance test, place the other two samples in a constant temperature box at -22℃ for more than 2 hours, take out the samples and fold them in half at 180° in the length direction to check whether there are any damage, cracks or other abnormalities on the surface of the film. 6.4.7 Heat seal strength test.
Perform in accordance with the provisions of QB/T2358.
6.5 Hygienic performance test
Perform in accordance with the provisions of CB/T5009.60-2003. 7 Inspection rules
7.1 Batch
Products are accepted in batches. Products of the same variety, same specification and continuous production are considered as a batch. The maximum batch of films shall not exceed 100 rolls, and the maximum batch of bags shall not exceed 50,000. 7.2 Inspection classificationbzxz.net
Product inspection is divided into factory inspection and type inspection. 7.2.1 Factory inspection.
The factory inspection items are 5.1, 5.2 and 5.3, except for drop resistance, cold resistance and heat resistance. 7.2.2 Type inspection.
Type inspection items are all the contents of Part 5. Type inspection is required in any of the following situations: when a new product or old product is converted to production;
When there are major changes in raw materials, formulas, and processes that may affect product performance; c)
When continuous production for 6 months;
d) When the product is resumed after a long period of suspension; e)
When the factory inspection results are significantly different from the last type inspection; f)
When the national quality supervision agency makes a request: When the customer has special requirements.
7.3 Sampling
7.3.1 Appearance quality, size and specifications shall be subject to the normal inspection secondary sampling plan specified in GB/T2828.1, with the inspection level of II and the acceptance quality limit (AQL) of 6.5. Films shall be sampled and inspected as specified in Table 5, and bags shall be sampled and inspected as specified in Table 6. Each roll of film and bag shall be a 5
BB/T0058—2011
sample unit.
Batch N
91~150
Batch N
501~1200
1201~3200
3201~10000
10001~35000
35001~150000
Sampling and judgment plan for inspection of film appearance quality, size and specifications Sample
Sample size
Cumulative sample size
Acceptance quality Limit (AQL)
Acceptance number Ac
Sampling and judgment plan for bag appearance quality, size and specification inspection Sample size
Cumulative sample size
Unit is roll
Rejection number Re
Unit is strip
Acceptance quality limit (AQL)
Acceptance number Ac
Rejection number Re
Physical mechanical properties and hygienic properties, take one roll from each batch of products for film and 5 strips from each batch of products for bags. 7.3.2
7.4 Judgment
7.4.1 Judgment of qualified items.
7.4.1.1 Judgment of appearance quality, size and specification shall be carried out in accordance with the provisions of Table 5 and Table 6. BB/T0058—2011
7.4.1.2 If there are unqualified items in the physical and mechanical performance test, double samples should be taken from the original batch of products for re-testing of the unqualified items. If all the re-test results are qualified, the batch of products is judged to be qualified; if the re-test is still unqualified, the batch of products is unqualified. 7.4.1.3 If there are unqualified items in the hygienic performance test, the batch of products is judged to be unqualified. 7.4.2 Determination of qualified batches.
If the products are qualified according to 7.4.1.1, 7.4.1.2 and 7.4.1.3, the batch of products is qualified. 8 Marking, packaging, transportation and storage
8.1 Marking
Marking should comply with the provisions of GB/T191. Products should have qualified marks, indicating product name, specifications, quantity, batch number, manufacturer, production date, etc.
8.2 Packaging
The packaging should be firm. It can also be agreed upon by both parties. 8.3 Transportation
Handle with care during transportation, avoid mechanical collision or contact with sharp objects, avoid exposure to the sun and rain, and avoid contamination. 8.4 Storage
Products should be stored in a clean, dry, ventilated warehouse, away from heat and pollution sources, and are strictly prohibited from contact with corrosive chemicals and other harmful substances to prevent extrusion, deformation, and damage. The product storage period shall not exceed 18 months from the date of production.2 Appearance quality
Appearance quality shall be visually inspected under natural light.
6.3 Dimensions and specifications
6.3.1 Width, length and folding depth.
Perform in accordance with the provisions of GB/T6673-2001. 6.3.2 Thickness.
Perform in accordance with the provisions of CB/T6672-2001. The limit deviation of thickness shall be calculated according to formula (1): At=tmax(tmin)-to
Where:
Thickness limit deviation, in millimeters (mm); tmax(tmm)-the maximum (minimum) value of the measured thickness deviation, in millimeters (mm); to
Nominal thickness, in millimeters (mm). The average deviation of thickness shall be calculated according to formula (2): = (t, - to)
Wherein:
t—average deviation of thickness, in percent (%); t—average thickness, in millimeters (mm); to—nominal thickness, in millimeters (mm). 6.4 Physical and mechanical properties
6.4.1 Tests on tensile strength, nominal strain at break and tensile yield stress. (1)
(2)
According to the provisions of CB/T1040.3-2006, take type 2 specimens with a width of 10 mm, an initial distance of 50 mm between the clamps, and a test speed of (500±50) mm/min. Take 5 pieces of longitudinal and transverse smooth surface materials for the test. 6.4.2 Trouser tear strength test.
Perform according to the provisions of GB/T16578.1.
6.4.3 Impact damage quality test.
According to GB/T9639.1-2008A method, select smooth surface materials for testing. 6.4.4 Friction coefficient test.
According to GB/T10006, select smooth front materials for testing. 6.4.5 Drop resistance test.
6.4.5.1 The test environment and test site shall be carried out in accordance with the provisions of CB/T4857.5. 6.4.5.2 Number of samples: 3 samples shall be randomly selected. 6.4.5.3 Test method: You may choose one of the following two methods and carry out in accordance with the provisions of CB/T4857.5. Place the front of the sample at a height of 3m and let it fall freely once. a)
BB/T0058—2011
Place the A and B type specimens at a height of 1.5m, and the C type specimen at a height of 1.2m. Each specimen shall be subjected to free fall once in the order of front, vertical and side b)
. 6.4.6 Heat resistance and cold resistance test.
6.4.6.1 Take 4 specimens from the test film and bag, about 300mm long and 20mm wide. 6.4.6.2 During the heat resistance test, overlap the two surfaces, apply a load of 9.8N on them, and place them in an oven at 80℃ for 1h. After taking them out, separate the two overlapping specimens immediately to check whether there are any abnormal conditions such as adhesion and melting marks on the surface. 6.4.6.3 During the cold resistance test, place the other two samples in a constant temperature box at -22℃ for more than 2 hours, take out the samples and fold them in half at 180° in the length direction to check whether there are any damage, cracks or other abnormalities on the surface of the film. 6.4.7 Heat seal strength test.
Perform in accordance with the provisions of QB/T2358.
6.5 Hygienic performance test
Perform in accordance with the provisions of CB/T5009.60-2003. 7 Inspection rules
7.1 Batch
Products are accepted in batches. Products of the same variety, same specification and continuous production are considered as a batch. The maximum batch of films shall not exceed 100 rolls, and the maximum batch of bags shall not exceed 50,000. 7.2 Inspection classification
Product inspection is divided into factory inspection and type inspection. 7.2.1 Factory inspection.
The factory inspection items are 5.1, 5.2 and 5.3, except for drop resistance, cold resistance and heat resistance. 7.2.2 Type inspection.
Type inspection items are all the contents of Part 5. Type inspection is required in any of the following situations: when a new product or old product is converted to production;
When there are major changes in raw materials, formulas, and processes that may affect product performance; c)
When continuous production for 6 months;
d) When the product is resumed after a long period of suspension; e)
When the factory inspection results are significantly different from the last type inspection; f)
When the national quality supervision agency makes a request: When the customer has special requirements.
7.3 Sampling
7.3.1 Appearance quality, size and specifications shall be subject to the normal inspection secondary sampling plan specified in GB/T2828.1, with the inspection level of II and the acceptance quality limit (AQL) of 6.5. Films shall be sampled and inspected as specified in Table 5, and bags shall be sampled and inspected as specified in Table 6. Each roll of film and bag shall be a 5
BB/T0058—2011
sample unit.
Batch N
91~150
Batch N
501~1200
1201~3200
3201~10000
10001~35000
35001~150000
Sampling and judgment plan for inspection of film appearance quality, size and specifications Sample
Sample size
Cumulative sample size
Acceptance quality Limit (AQL)
Acceptance number Ac
Sampling and judgment plan for bag appearance quality, size and specification inspection Sample size
Cumulative sample size
Unit is roll
Rejection number Re
Unit is strip
Acceptance quality limit (AQL)
Acceptance number Ac
Rejection number Re
Physical mechanical properties and hygienic properties, take one roll from each batch of products for film and 5 strips from each batch of products for bags. 7.3.2
7.4 Judgment
7.4.1 Judgment of qualified items.
7.4.1.1 Judgment of appearance quality, size and specification shall be carried out in accordance with the provisions of Table 5 and Table 6. BB/T0058—2011
7.4.1.2 If there are unqualified items in the physical and mechanical performance test, double samples should be taken from the original batch of products for re-testing of the unqualified items. If all the re-test results are qualified, the batch of products is judged to be qualified; if the re-test is still unqualified, the batch of products is unqualified. 7.4.1.3 If there are unqualified items in the hygienic performance test, the batch of products is judged to be unqualified. 7.4.2 Determination of qualified batches.
If the products are qualified according to 7.4.1.1, 7.4.1.2 and 7.4.1.3, the batch of products is qualified. 8 Marking, packaging, transportation and storage
8.1 Marking
Marking should comply with the provisions of GB/T191. Products should have qualified marks, indicating product name, specifications, quantity, batch number, manufacturer, production date, etc.
8.2 Packaging
The packaging should be firm. It can also be agreed upon by both parties. 8.3 Transportation
Handle with care during transportation, avoid mechanical collision or contact with sharp objects, avoid exposure to the sun and rain, and avoid contamination. 8.4 Storage
Products should be stored in a clean, dry, ventilated warehouse, away from heat and pollution sources, and are strictly prohibited from contact with corrosive chemicals and other harmful substances to prevent extrusion, deformation, and damage. The product storage period shall not exceed 18 months from the date of production.1.
6.4.3 Impact damage quality test.
According to GB/T9639.1-2008A method, select smooth surface materials for the test. 6.4.4 Friction coefficient test.
According to GB/T10006, select smooth front materials for the test. 6.4.5 Drop resistance test.
6.4.5.1 The test environment and test site shall be carried out in accordance with the provisions of CB/T4857.5. 6.4.5.2 Number of samples: 3 samples are randomly selected. 6.4.5.3 Test method: One of the following two methods can be selected and carried out in accordance with the provisions of CB/T4857.5. Place the front of the sample at a height of 3m and let it fall freely once. a)
BB/T0058—2011
Place the A and B type specimens at a height of 1.5m, and the C type specimen at a height of 1.2m. Each specimen shall be subjected to free fall once in the order of front, vertical and side b)
. 6.4.6 Heat resistance and cold resistance test.
6.4.6.1 Take 4 specimens from the test film and bag, about 300mm long and 20mm wide. 6.4.6.2 During the heat resistance test, overlap the two surfaces, apply a load of 9.8N on them, and place them in an oven at 80℃ for 1h. After taking them out, separate the two overlapping specimens immediately to check whether there are any abnormal conditions such as adhesion and melting marks on the surface. 6.4.6.3 During the cold resistance test, place the other two samples in a constant temperature box at -22℃ for more than 2 hours, take out the samples and fold them in half at 180° in the length direction to check whether there are any damage, cracks or other abnormalities on the surface of the film. 6.4.7 Heat seal strength test.
Perform in accordance with the provisions of QB/T2358.
6.5 Hygienic performance test
Perform in accordance with the provisions of CB/T5009.60-2003. 7 Inspection rules
7.1 Batch
Products are accepted in batches. Products of the same variety, same specification and continuous production are considered as a batch. The maximum batch of films shall not exceed 100 rolls, and the maximum batch of bags shall not exceed 50,000. 7.2 Inspection classification
Product inspection is divided into factory inspection and type inspection. 7.2.1 Factory inspection.
The factory inspection items are 5.1, 5.2 and 5.3, except for drop resistance, cold resistance and heat resistance. 7.2.2 Type inspection.
Type inspection items are all the contents of Part 5. Type inspection is required in any of the following situations: when a new product or old product is converted to production;
When there are major changes in raw materials, formulas, and processes that may affect product performance; c)
When continuous production for 6 months;
d) When the product is resumed after a long period of suspension; e)
When the factory inspection results are significantly different from the last type inspection; f)
When the national quality supervision agency makes a request: When the customer has special requirements.
7.3 Sampling
7.3.1 Appearance quality, size and specifications shall be subject to the normal inspection secondary sampling plan specified in GB/T2828.1, with the inspection level of II and the acceptance quality limit (AQL) of 6.5. Films shall be sampled and inspected as specified in Table 5, and bags shall be sampled and inspected as specified in Table 6. Each roll of film and bag shall be a 5
BB/T0058—2011
sample unit.
Batch N
91~150
Batch N
501~1200
1201~3200
3201~10000
10001~35000
35001~150000
Sampling and judgment plan for inspection of film appearance quality, size and specifications Sample
Sample size
Cumulative sample size
Acceptance quality Limit (AQL)
Acceptance number Ac
Sampling and judgment plan for bag appearance quality, size and specification inspection Sample size
Cumulative sample size
Unit is roll
Rejection number Re
Unit is strip
Acceptance quality limit (AQL)
Acceptance number Ac
Rejection number Re
Physical mechanical properties and hygienic properties, take one roll from each batch of products for film and 5 strips from each batch of products for bags. 7.3.2
7.4 Judgment
7.4.1 Judgment of qualified items.
7.4.1.1 Judgment of appearance quality, size and specification shall be carried out in accordance with the provisions of Table 5 and Table 6. BB/T0058—2011
7.4.1.2 If there are unqualified items in the physical and mechanical performance test, double samples should be taken from the original batch of products for re-testing of the unqualified items. If all the re-test results are qualified, the batch of products is judged to be qualified; if the re-test is still unqualified, the batch of products is unqualified. 7.4.1.3 If there are unqualified items in the hygienic performance test, the batch of products is judged to be unqualified. 7.4.2 Determination of qualified batches.
If the products are qualified according to 7.4.1.1, 7.4.1.2 and 7.4.1.3, the batch of products is qualified. 8 Marking, packaging, transportation and storage
8.1 Marking
Marking should comply with the provisions of GB/T191. Products should have qualified marks, indicating product name, specifications, quantity, batch number, manufacturer, production date, etc.
8.2 Packaging
The packaging should be firm. It can also be agreed upon by both parties. 8.3 Transportation
Handle with care during transportation, avoid mechanical collision or contact with sharp objects, avoid exposure to the sun and rain, and avoid contamination. 8.4 Storage
Products should be stored in a clean, dry, ventilated warehouse, away from heat and pollution sources, and are strictly prohibited from contact with corrosive chemicals and other harmful substances to prevent extrusion, deformation, and damage. The product storage period shall not exceed 18 months from the date of production.1.
6.4.3 Impact damage quality test.
According to GB/T9639.1-2008A method, select smooth surface materials for the test. 6.4.4 Friction coefficient test.
According to GB/T10006, select smooth front materials for the test. 6.4.5 Drop resistance test.
6.4.5.1 The test environment and test site shall be carried out in accordance with the provisions of CB/T4857.5. 6.4.5.2 Number of samples: 3 samples are randomly selected. 6.4.5.3 Test method: One of the following two methods can be selected and carried out in accordance with the provisions of CB/T4857.5. Place the front of the sample at a height of 3m and let it fall freely once. a)
BB/T0058—2011
Place the A and B type specimens at a height of 1.5m, and the C type specimen at a height of 1.2m. Each specimen shall be subjected to free fall once in the order of front, vertical and side b)
. 6.4.6 Heat resistance and cold resistance test.
6.4.6.1 Take 4 specimens from the test film and bag, about 300mm long and 20mm wide. 6.4.6.2 During the heat resistance test, overlap the two surfaces, apply a load of 9.8N on them, and place them in an oven at 80℃ for 1h. After taking them out, separate the two overlapping specimens immediately to check whether there are any abnormal conditions such as adhesion and melting marks on the surface. 6.4.6.3 During the cold resistance test, place the other two samples in a constant temperature box at -22℃ for more than 2 hours, take out the samples and fold them in half at 180° in the length direction to check whether there are any damage, cracks or other abnormalities on the surface of the film. 6.4.7 Heat seal strength test.
Perform in accordance with the provisions of QB/T2358.
6.5 Hygienic performance test
Perform in accordance with the provisions of CB/T5009.60-2003. 7 Inspection rules
7.1 Batch
Products are accepted in batches. Products of the same variety, same specification and continuous production are considered as a batch. The maximum batch of films shall not exceed 100 rolls, and the maximum batch of bags shall not exceed 50,000. 7.2 Inspection classification
Product inspection is divided into factory inspection and type inspection. 7.2.1 Factory inspection.
The factory inspection items are 5.1, 5.2 and 5.3, except for drop resistance, cold resistance and heat resistance. 7.2.2 Type inspection.
Type inspection items are all the contents of Part 5. Type inspection is required in any of the following situations: when a new product or old product is converted to production;
When there are major changes in raw materials, formulas, and processes that may affect product performance; c)
When continuous production for 6 months;
d) When the product is resumed after a long period of suspension; e)
When the factory inspection results are significantly different from the last type inspection; f)
When the national quality supervision agency makes a request: When the customer has special requirements.
7.3 Sampling
7.3.1 Appearance quality, size and specifications shall be subject to the normal inspection secondary sampling plan specified in GB/T2828.1, with the inspection level of II and the acceptance quality limit (AQL) of 6.5. Films shall be sampled and inspected as specified in Table 5, and bags shall be sampled and inspected as specified in Table 6. Each roll of film and bag shall be a 5
BB/T0058—2011
sample unit.
Batch N
91~150
Batch N
501~1200
1201~3200
3201~10000
10001~35000
35001~150000
Sampling and judgment plan for inspection of film appearance quality, size and specifications Sample
Sample size
Cumulative sample size
Acceptance quality Limit (AQL)
Acceptance number Ac
Sampling and judgment plan for bag appearance quality, size and specification inspection Sample size
Cumulative sample size
Unit is roll
Rejection number Re
Unit is strip
Acceptance quality limit (AQL)
Acceptance number Ac
Rejection number Re
Physical mechanical properties and hygienic properties, take one roll from each batch of products for film and 5 strips from each batch of products for bags. 7.3.2
7.4 Judgment
7.4.1 Judgment of qualified items.
7.4.1.1 Judgment of appearance quality, size and specification shall be carried out in accordance with the provisions of Table 5 and Table 6. BB/T0058—2011
7.4.1.2 If there are unqualified items in the physical and mechanical performance test, double samples should be taken from the original batch of products for re-testing of the unqualified items. If all the re-test results are qualified, the batch of products is judged to be qualified; if the re-test is still unqualified, the batch of products is unqualified. 7.4.1.3 If there are unqualified items in the hygienic performance test, the batch of products is judged to be unqualified. 7.4.2 Determination of qualified batches.
If the products are qualified according to 7.4.1.1, 7.4.1.2 and 7.4.1.3, the batch of products is qualified. 8 Marking, packaging, transportation and storage
8.1 Marking
Marking should comply with the provisions of GB/T191. Products should have qualified marks, indicating product name, specifications, quantity, batch number, manufacturer, production date, etc.
8.2 Packaging
The packaging should be firm. It can also be agreed upon by both parties. 8.3 Transportation
Handle with care during transportation, avoid mechanical collision or contact with sharp objects, avoid exposure to the sun and rain, and avoid contamination. 8.4 Storage
Products should be stored in a clean, dry, ventilated warehouse, away from heat and pollution sources, and are strictly prohibited from contact with corrosive chemicals and other harmful substances to prevent extrusion, deformation, and damage. The product storage period shall not exceed 18 months from the date of production.1. The normal inspection secondary sampling plan specified in the inspection level is II, the acceptance quality limit (AQL) is 6.5, the film is sampled and inspected according to the provisions of Table 5, and the bag is sampled and inspected according to the provisions of Table 6. Each roll of film and bag is a 5
BB/T0058—2011
sample unit.
Batch N
91~150
Batch N
501~1200
1201~3200
3201~10000
10001~35000
35001~150000
Sampling and judgment plan for inspection of film appearance quality, size and specifications Sample
Sample size
Cumulative sample size
Acceptance quality Limit (AQL)
Acceptance number Ac
Sampling and judgment plan for bag appearance quality, size and specification inspection Sample size
Cumulative sample size
Unit is roll
Rejection number Re
Unit is strip
Acceptance quality limit (AQL)
Acceptance number Ac
Rejection number Re
Physical mechanical properties and hygienic properties, take one roll from each batch of products for film and 5 strips from each batch of products for bags. 7.3.2
7.4 Judgment
7.4.1 Judgment of qualified items.
7.4.1.1 Judgment of appearance quality, size and specification shall be carried out in accordance with the provisions of Table 5 and Table 6. BB/T0058—2011
7.4.1.2 If there are unqualified items in the physical and mechanical performance test, double samples should be taken from the original batch of products for re-testing of the unqualified items. If all the re-test results are qualified, the batch of products is judged to be qualified; if the re-test is still unqualified, the batch of products is unqualified. 7.4.1.3 If there are unqualified items in the hygienic performance test, the batch of products is judged to be unqualified. 7.4.2 Determination of qualified batches.
If the products are qualified according to 7.4.1.1, 7.4.1.2 and 7.4.1.3, the batch of products is qualified. 8 Marking, packaging, transportation and storage
8.1 Marking
Marking should comply with the provisions of GB/T191. Products should have qualified marks, indicating product name, specifications, quantity, batch number, manufacturer, production date, etc.
8.2 Packaging
The packaging should be firm. It can also be agreed upon by both parties. 8.3 Transportation
Handle with care during transportation, avoid mechanical collision or contact with sharp objects, avoid exposure to the sun and rain, and avoid contamination. 8.4 Storage
Products should be stored in a clean, dry, ventilated warehouse, away from heat and pollution sources, and are strictly prohibited from contact with corrosive chemicals and other harmful substances to prevent extrusion, deformation, and damage. The product storage period shall not exceed 18 months from the date of production.1. The normal inspection secondary sampling plan specified in the inspection level is II, the acceptance quality limit (AQL) is 6.5, the film is sampled and inspected according to the provisions of Table 5, and the bag is sampled and inspected according to the provisions of Table 6. Each roll of film and bag is a 5
BB/T0058—2011
sample unit.
Batch N
91~150
Batch N
501~1200
1201~3200
3201~10000
10001~35000
35001~150000
Sampling and judgment plan for inspection of film appearance quality, size and specifications Sample
Sample size
Cumulative sample size
Acceptance quality Limit (AQL)
Acceptance number Ac
Sampling and judgment plan for bag appearance quality, size and specification inspection Sample size
Cumulative sample size
Unit is roll
Rejection number Re
Unit is strip
Acceptance quality limit (AQL)
Acceptance number Ac
Rejection number Re
Physical mechanical properties and hygienic properties, take one roll from each batch of products for film and 5 strips from each batch of products for bags. 7.3.2
7.4 Judgment
7.4.1 Judgment of qualified items.
7.4.1.1 Judgment of appearance quality, size and specification shall be carried out in accordance with the provisions of Table 5 and Table 6. BB/T0058—2011
7.4.1.2 If there are unqualified items in the physical and mechanical performance test, double samples should be taken from the original batch of products for re-testing of the unqualified items. If all the re-test results are qualified, the batch of products is judged to be qualified; if the re-test is still unqualified, the batch of products is unqualified. 7.4.1.3 If there are unqualified items in the hygienic performance test, the batch of products is judged to be unqualified. 7.4.2 Determination of qualified batches.
If the products are qualified according to 7.4.1.1, 7.4.1.2 and 7.4.1.3, the batch of products is qualified. 8 Marking, packaging, transportation and storage
8.1 Marking
Marking should comply with the provisions of GB/T191. Products should have qualified marks, indicating product name, specifications, quantity, batch number, manufacturer, production date, etc.
8.2 Packaging
The packaging should be firm. It can also be agreed upon by both parties. 8.3 Transportation
Handle with care during transportation, avoid mechanical collision or contact with sharp objects, avoid exposure to the sun and rain, and avoid contamination. 8.4 Storage
Products should be stored in a clean, dry, ventilated warehouse, away from heat and pollution sources, and are strictly prohibited from contact with corrosive chemicals and other harmful substances to prevent extrusion, deformation, and damage. The product storage period shall not exceed 18 months from the date of production.
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