Some standard content:
ICS55.040
Packaging Industry Standard of the People's Republic of China
BB/T00522009
Co-extrusion films and pouches for liquid milk for package2009-11-17Promulgated
Implementation on 2010-04-01
Promulgated by the Ministry of Industry and Information Technology of the People's Republic of ChinaAnnouncement of the Ministry of Industry and Information Technology of the People's Republic of China
Engineering [2009] No. 63
The Ministry of Industry and Information Technology approved 139 industry standards including "Snowplow", including 29 automotive industry standards, 29 pharmaceutical equipment industry standards, 4 packaging industry standards, and 77 textile industry standards (see Appendix 1 for standard number, name, main contents and starting implementation date); approved the amendment to the textile industry standard FZ/T73001-2008 "Socks" (see Appendix 2), which is now announced and will be implemented from the date of announcement. The above automotive, pharmaceutical equipment and packaging industry standards are published by China Planning Press, and the textile industry standards are published by China Standards Press. Annex 4: Numbers, names and starting dates of implementation of packaging industry standards. Ministry of Industry and Information Technology of the People's Republic of China November 17, 2009
Annex:
Numbers, names and starting dates of implementation of 4 packaging industry standards Standard number
BB/T0050-2009
BB/T0051—2009
BB/T0052-
BB/T0053---2009
Standard name
Thermal coding ribbon
Thermal transfer film for soft infusion bags||t t||Liquid milk co-extrusion packaging film and bag
In-mold label
Foodmate.nethttp://foodmate.netStart date of implementation
2010-04-01
2010-04-01
2010-04-01
2010-04-01
Foreword·
Normative references
Product classification
Test methods…
Inspection rules.
Marking, packaging, transportation and storage
http://foodmate.netBB/T0052—2009
BB/T0052—2009
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: China Packaging Research and Testing Center, Shandong Xinjufeng Technology Packaging Co., Ltd., Jiangsu Caihua Packaging Group Co., Ltd., Inner Mongolia Mengniu Dairy (Group) Co., Ltd., Ecolean (Tianjin) Co., Ltd., Shanghai Zijiang Color Printing and Packaging Co., Ltd., and Beijing Danbel Instrument Co., Ltd. The main drafters of the standard are: Niu Shumei, Yang Wei, Xu Jing, Gao Xuewen, Yuan Qiuxin, Hu Xinyu, Wu Xiangning, Hu Yanhong, and Wang Danfeng. Ⅱ
http://foodmate.net1Scope
Liquid milk extrusion packaging film and bag
BB/T0052—2009
This standard specifies the product classification, requirements, test methods, inspection rules, and marking, packaging, transportation and storage of liquid milk co-extrusion packaging film and bag (hereinafter referred to as milk film or milk bag). This standard applies to liquid milk packaging film or bag made by co-extrusion process with polyethylene as the main raw material. 2 Normative references
The clauses in the following documents become the clauses of this standard through reference in this standard. For all referenced documents with dates, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, parties that reach an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For all referenced documents without dates, the latest versions are applicable to this standard. GB/T1037 Test method for water vapor permeability of plastic film and sheet - Cup method (GB/T1037-1988, neqASTM96:1980)
GB/T1038 Test method for gas permeability of plastic film and sheet - Pressure difference method (GB/T1038-2000, negISO25561974)
GB/T1040.3 Determination of tensile properties of plastics - Part 3: Test conditions for film and sheet (GB/T1040.3-2006, IS0527-3:1995, IDT)bzxZ.net
GB/T2828.1 Sampling inspection procedure by attributes - Part 1: Sampling plan for batch inspection based on acceptance quality limit (AQL) (GB/T2828.1-2003, IS02859-1 :1999,IDT)GB/T2918 Standard environment for conditioning and testing of plastic specimens (GB/T2918-1998, idtIS0291:1997)GB/T4789.2 Microbiological examination of food hygiene Determination of total colony countGB/T4789.3 Microbiological examination of food hygiene Coliform countGB/T4789.4 Microbiological examination of food hygiene Salmonella testCB/T4789.5 Microbiological examination of food hygiene Shigella testGB/T4789.10 Microbiological examination of food hygiene Staphylococcus aureus testGB/T4789.11 Microbiological examination of food hygiene Hemolytic streptococcus testGB/T5009.60 Analytical methods for hygienic standards of polyethylene, polystyrene and polypropylene moldings for food packagingGB/T6 672 Determination of thickness of plastic film and sheet - Mechanical measurement method (GB/T6672-2001idtIS04593:1993) GB/T6673 Determination of length and width of plastic film and sheet (GB/T6673--2001, idtIS04592:1992) GB/T7707--2008 Gravure decorative printing GB/T9639.1--2008 Test method for impact resistance of plastic film and sheet - Free falling dart method - Part 1: Step method GB9683 Hygienic standard for composite food packaging bags GB9685 Hygienic standard for the use of additives for food containers and packaging materials GB9687 Hygienic standard for polyethylene moldings for food packaging 1
BB/T0052--2009
GB/T10004-2 008 Plastic composite film and bag for packaging Dry composite and extrusion composite packaging materials Plastic film and sheet oxygen permeability test Coulometer detection method (GB/T19789-GB/T19789
2005, ASTMD3985:1995MOD)
GB/T21529
Determination of water vapor transmission rate of plastic film and sheet Electrolytic sensor method (GB/T215292008, IS015106-3:2003, MOD)
QB/T2358—1998 Test method for heat seal strength of plastic film packaging bag IS015106.2-2003 Determination of water vapor transmission rate of plastic film and sheet Infrared measurement method 3 Product classification
According to the barrier requirements, it can be divided into barrier film and non-barrier film. According to the liquid milk type, it can be divided into ordinary milk film and bag and yogurt film and bag. 4 Requirements
4.1 Dimensions
4.1.1 Dimension deviation requirements are shown in Table 1.
Dimension deviation
Film width, mm
Film roll end surface unevenness, mm
Bag width, mm
Printing pattern dimension deviation requirements are shown in Table 2.
Table 2 Printing pattern dimension deviation
Overprint accuracy, mm
Film roll slitting position, mm
Film roll printing pattern spacing, %
4.1.3 Thickness deviation requirements are shown in Table 3.
Table 3 Thickness deviation
4.2 Joint requirements
Joint quantity, requirements and marking requirements are shown in Table 4.2
Thickness limit deviation
Oral pure body network
Deviation requirements
Deviation requirements
Average thickness deviation
Number of joints
Distance between two adjacent joints
Printed pattern at joint
Joint marking
4.3 Appearance quality
Appearance quality requirements are shown in Table 5.
Crystal point (fish eye)
Sealing
0.6mm~2mm
0.3mm~0.6mm
4.4 Physical and mechanical properties
Table 4 Joint requirements
BB/T0052--2009
When <1000m, there are a maximum of 2 joints; when ≥1000m, there are a maximum of 3 joints>50m
Avoid transverse seals, connect them straight and firmly, and should not be disconnected during use. Each joint should be clearly marked
Table 5 Appearance quality
No pollution, dust or scratches. Good plasticization, no obvious clouds, water marks, stripes, no bubbles, perforations and ruptures allowed
The printed pattern and text are clear and complete, the pattern has no obvious deformation and color difference, and there is no defect. The film roll has uniform tension, neat end faces, flat surface, no obvious ribs, no wrinkles, and the film roll core tube must not have obvious deformation. It is basically straight and free of bubbles
Not allowed
≤15 pieces/m≤5 pieces/100cm2
≤10 pieces/100cm
Not allowed
≤4 pieces/m2; ≤2 pieces/100cm
≤10 pieces/100cm2
The physical and mechanical properties requirements of milk film and milk bag are shown in Table 6. Table 6 Physical and mechanical properties
Tensile strength, N
Elongation at break, %
Heat seal strength, N/15mm
Oriental China area
≥400
≥500
BB/T0052—2009
Dart impact damage mass, g
Oxygen permeability, cm/(m2.24h-0.1MPa)Water vapor permeability, g/(m2·24h)
Ink layer bonding strength
Pressure resistance
Drop performance
4.5 Hygienic properties
Table 6 (continued)
Barrier film≤20
≥150
No falling
Non-barrier film≤2200
≤500mL, 500N load, no leakage, no rupture>500mL, 600N load, no leakage, no rupture≤500mL, 800mm drop, no leakage, no rupture>500, ≤1000mL, 600mm drop, no leakage, no rupture>1000mL, 400mm drop, no leakage, no rupture4.5.1 The hygienic properties of milk film and milk bag shall comply with the provisions of GB9687 or GB9683. 4.5.2 The residual solvent content of milk film and milk bag shall generally be tested for the residual solvents of ethanol, isopropanol, butanone, ethyl acetate, toluene and xylene, and the requirements shall comply with the provisions of Table 7.
Table 7 Requirements for residual solvents
Total residual solvents
Residual benzene
≤10mg/m
≤1mg/m2
4.5.3 The types, scope of use and dosage of additives used in raw and auxiliary materials of milk films and milk bags must comply with the provisions of GB9685. 4.6 Microbiological indicators of milk films and milk bags
The requirements for microbiological indicators of milk films and milk bags are shown in Table 8. Table 8 Microbiological indicators of milk film and milk bag
Total colony count, cfu/cm2
Escherichia coli, MPN/100cm2
Pathogenic bacteria (Salmonella, Shigella, Staphylococcus aureus, hemolytic streptococcus) 5 Test method
Sample state adjustment and standard test environment 5.1
Ordinary milk film and bag
Yogurt film and bag
Not to be detected
BB/T0052—2009
Sample state adjustment and standard test environment shall be carried out in accordance with the provisions of GB/T2918. The sample pretreatment time under standard environment conditions shall be more than 4h. Test environment conditions Temperature is 23℃±2℃, relative humidity is 50%±10%. 5.2 Dimensions
5.2.1 Total width deviation of milk film, width deviation of milk bag. According to the provisions of GB/T6673, use a ruler with an accuracy of not less than 0.5mm to measure. 5.2.2 Film roll end surface unevenness.
Use a ruler with an accuracy of not less than 0.5mm to measure. 5.2.3 Printing pattern size deviation.
a) Use a scale magnifying glass to measure the overprint accuracy. b) Use a ruler with an accuracy of not less than 0.5mm to measure the cutting position and the spacing of the printing pattern. 5.2.4 Joint.
Use visual inspection or corresponding measuring tools to measure.
5.2.5 Thickness.
According to the provisions of GB/T6672.
The limit deviation of thickness shall be calculated according to formula (1): At=tmax(tmi)-to
Where:
At is the limit deviation of thickness, in millimeters (mm); t(t) is the maximum (minimum) value of the measured thickness, in millimeters (mm); to is the nominal thickness, in millimeters (mm). The average deviation of thickness shall be calculated according to formula (2): t=(tg-to)/tgx100
Where:
t—average deviation of thickness, %;
t—average thickness, in millimeters (mm); to is the nominal thickness, in millimeters (mm). 5.3 Appearance quality
(2)
5.3.1 The surface, printing, film roll and sealing of milk bags in the appearance quality requirements shall be inspected by visual inspection under non-direct natural light.
5.3.2 The size of "crystal point" and "impurity" shall be detected with a scale magnifying glass, calculated based on the actual width and length, and the sampling area shall not be less than 1m2.
5.4 Physical and mechanical properties test
5.4.1 Breaking force and elongation at break.
Test according to the provisions of CB/T1040.3. The sample adopts a type 2 long strip sample with a width of 15mm, a jaw distance of 50mm for the tensile testing machine, and a test speed of 300mm/min
5.4.2 Heat sealing strength.
Test according to the provisions of QB/T2358.
Product Partner Network h
BB/T0052—2009
5.4.3 Dart impact quality.
Test according to method A specified in GB/T9639.1—2008. 5.4.4 Oxygen permeability.
Test according to GB/T1038 or GB/T19789. The method in GB/T1038 shall be used for arbitration. 5.4.5 Water vapor permeability.
Test according to GB/T1037 or GB/T21529 or IS015106.2-2003. Test conditions: temperature 38℃±0.6℃, relative humidity 90%±2%. The method in GB/T1037 shall be used for arbitration. 5.4.6 Ink layer bonding strength.
Test according to the method specified in 5.7 of GB/T7707-2008 and the requirements for adhesive tape adhesion in Appendix A. 5.4.7 Pressure resistance.
Test according to 6.6.8 of CB/T10004-2008. 5.4.8 Drop performance.
Test in accordance with the provisions of 6.6.9 of GB/T10004-2008. 5.5 Hygienic performance test
5.5.1 The hygienic performance of milk film and milk bag shall be tested in accordance with the provisions of GB/T5009.60. 5.5.2 The determination of the residual solvent content of milk film and milk bag shall be tested in accordance with the provisions of 6.6.17 of GB/T10004-2008. 5.6 Determination of microbial indicators
5.6.1 In a sterile room, cut the sample into an area of 100cm2. If the area is less than 100cm2, cut it into the largest rectangle, measure the actual area, and accurately measure it to 0.1cm. Use a sterile cotton swab soaked in sterile water to repeatedly wipe the inner layer. After wiping, cut the cotton swab immediately (or burn it off), put it into a conical flask (or large test tube) containing 100mL sterile physiological water and shake it well to obtain the test solution. 5.6.2 The total colony count and coliform group shall be tested in accordance with the provisions of CB4789.2 and GB4789.3. The total colony count per square centimeter and the number of coliform group per 100 square centimeters shall be calculated based on the sample area. 5.6.3 Pathogenic bacteria include Salmonella, Shigella, Staphylococcus aureus, and hemolytic streptococci, which shall be tested in accordance with the provisions of GB4789.4, GB4789.5, GB4789.10, and GB4789.11, respectively. 6 Inspection rules
6.1 Inspection classification
6.1.1 Factory inspection.
Inspect product dimensions, joint requirements, and appearance quality in accordance with the requirements of 4.1 to 4.3. 6.1.2 Type inspection.
Type inspection items are all items in Chapter 4. Type inspection should be carried out when one of the following situations occurs: a) Appraisal of new product production;
b) When there are major changes in structure, process, or materials; c) During normal production, inspection is carried out every six months; d) When the product is resumed after being discontinued for 6 months; e) When there is a significant difference between the factory inspection result and the last type inspection result; f)
When the national quality supervision agency or user makes a request. 6
6.2 Sampling
6.2.1 Batch.
BB/T0052—2009
The same variety and specification are considered as one batch. For delivery in the form of milk bags, the quantity of each batch shall not exceed 4 million. For delivery in the form of film rolls, the quantity of each batch shall not exceed 20 tons.
6.2.2 Sampling plan.
Dimensions, joints and appearance requirements shall be carried out in accordance with the provisions of CB/T2828.1, using the special inspection level S-3 qualified quality level AQL=6.5, and a normal inspection sampling plan. Physical and mechanical properties, sanitary properties, and microbiological index sampling are carried out in batches. Products supplied in the form of rolls should be randomly selected from each batch of samples for inspection. Products supplied in the form of individual products should be tested from each batch of samples according to the requirements of the test items.
6.3 Judgment
6.3.1 The results of the size, joint and appearance quality inspections shall be judged individually in accordance with the provisions of Tables 1 to 5. If there are unqualified items, the roll (unit) shall be judged as unqualified. The qualified batch shall be judged in accordance with Table 9. Table 9 Sampling and judgment of size, joint and appearance quality Batch volume (piece)
≤150
151~500
501~3200
3201~10000
>10000
Sample volume volume (piece)
Acceptance number Ac volume (piece)
Rejection number Re volume (piece)
6.3.2 The results of physical and mechanical properties inspection shall be judged individually according to the index requirements of Table 6. If one item is unqualified, the unqualified items shall be double sampled and re-tested in the original batch. If the re-test results are still unqualified, the batch shall be judged unqualified. 6.3.3 The requirements for sanitary performance and microbiological indicators shall be judged according to the provisions of 4.5 and 4.6. If one item is unqualified, the batch shall be judged unqualified. 7 Marking, packaging, transportation and storage
7.1 Marking
The film roll or packaging should be marked with the product name, production date, batch number, specifications, manufacturer, and accompanied by a product certificate. 7.2 Packaging
Clean and odorless packaging materials should be used.
7.3 Transportation
During transportation, mechanical collisions or contact with sharp objects should be prevented, and the product should be protected from sunlight and rain to ensure that the packaging is intact and the product is not contaminated. 7.4 Storage
The product should be stored in a clean, cool and dry warehouse and should not come into contact with corrosive chemicals and other harmful substances. It should be at least 1m away from heat sources. The shelf life is generally not more than one year from the date of production. 7
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