Some standard content:
National Standard of the People's Republic of China
Packaging containers
Aerosol cans
Packaging containers-Aerosol cansSubject content and scope of application
GB 13042 -- 91
This standard specifies the main technical requirements, test methods, inspection rules, etc. for aerosols (including aerosol valves). This standard applies to aerosol cans made of tinned steel sheets and aluminum materials with a diameter of 25.4 mm and the corresponding aerosol valves. 2 Reference standards
GB 1196
Technical conditions for aluminium ingots for remelting
Determination of adhesion of paint films
GB1720
GB 1732
Determination of impact resistance of paint films
GB2520
Electroplated tinned steel sheets and strips
Count sampling procedures and sampling tables for batch inspection (applicable to inspection of continuous batches) GB 2828
ZB A82 001
Packaging and decoration Tinplate printed matter
3 Terminology
3.1 Aerosol can
Aerosol car
A disposable metal container for holding aerosol products, from which the aerosol products are sprayed out through a valve in a controlled form under the action of pre-pressure.
3. 2 Aerosol valve
A mechanical device on the spray container, which sprays the spray product in a predetermined form when opened. 4 Material quality requirements
4.1 The thickness of the tinned steel sheet is 0.18~~0.40mm, the hardness value HR30T is 48~65, the tinning amount is 4.9~20.2g/m2, and other properties meet the requirements of GB2520.
4.2 The aluminum material is industrial pure aluminum, and the aluminum content should be greater than 99.5%. Other properties meet the requirements of GB1196. 5 Technical requirements
5.1 Size
5.1.1 The diameter and height of the spray are determined according to user requirements, and the volume is not more than 1000mL. 5.1.2 The main dimensions and tolerances of the can mouth must ensure effective cooperation with the aerosol valve. The opening shape Y type is an aluminum hoop, and the B type is a tinned steel can, see Figure 1 and Table 1.
Approved by the State Administration of Technical Supervision on June 26, 1991
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Implementation on April 1, 1992
Opening shape
Basic size
Limit deviation
GB 13042--91
Inner diameter D2
Basic size
The main dimensions of the aerosol valve are shown in Figure 2 and Table 2.
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Limit deviation
Contact height
Water standard supply
Average contact height (10 pieces)
Allowable error
Basic size
5.2 Appearance requirements
Limit deviation
Basic size
5.2.1 The pattern is clear, the color is bright, and the overprint is accurate. GB 13042-91
Limit deviation
Basic size
Limit deviation
5.2.2 The tank body is flat, without rust spots, and the weld is smooth. There are no obvious scratches on the main printing parts, and the minor parts have no more than three slight scratches (no more than 0.3mm×20mm).
5.2.3 The roll mouth is smooth, without wrinkles, cracks and deformation. 5.3 Pressure resistance index of spray cans
5.3.1 Leakage test is qualified.
5.3.2 Deformation pressure is not less than 1.2 MPa. 5.3.3 Burst pressure is not less than 1.4 MPa.
5.4 Physical and chemical indexes of paint film are shown in Table 3 (Z type). Table 3
Glossiness
Adhesion
Impact strength
5.5 Conductivity reading of inner coating of aluminum cans
Not more than 30mA.
5. 6 Requirements for aerosol valves
5.6.1 Leakage test of aerosol valves is qualified.
g/secondary
kg * cm
5.6.2 The appearance and assembly parts of the aerosol valve should be intact, and the product as a whole should be clean and intact. All channels must be unobstructed after the aerosol valve is opened. 5.6.3
The deformation pressure of the aerosol valve shall not be less than 1.8MPa. 6 Test method
Specifications and dimensions
6.1.1 The diameter and height of the aerosol valve of the spray can are measured with a vernier caliper or a go/no-go gauge. 6.1.2 The mouth of the can is measured with a go/no-go gauge.
6.2 Leakage test
6.2.1 Instrument
Water bath tester.
6.2.2 Test method
Put the sample on the water bath tester, put it into the water and inflate it to 0.8~0.85MPa, observe the whole can body, and it is qualified if there is no bubble within 1min.
6.3 Deformation pressure and burst pressure
Standards
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6.3.1 Instrument
Burst pressure measuring instrument.
6.3.2 Test method
GB 13042--91
Fill the can with water, insert the sealing head, tighten it, and gradually increase the pressure in the can to 1.2MPa. Observe whether the can body is deformed. If there is no deformation, it is qualified. Continue to increase the pressure to 1.4MPa and observe whether there is a bursting phenomenon. If there is no bursting, this item is qualified. 6.4 Paint film gloss
According to ZBA82001.
6.5 Paint film adhesion
According to GB1720.
6.6 Paint film impact strength
According to GB1732.
6.7 Conductivity measurement of inner coating of aluminum cans
6.7.1 Instrument
Special coating conductivity measuring instrument: DC voltage 6.3V, measurement range 0~125mA. 6.7.2 Reagents
Electrolyte: 1.02% NaCl solution.
6.7.3 Determination method
Inject NaCl electrolyte into the sample to 6mm from the mouth, then clamp it on the base of the measuring instrument, operate it according to the instrument usage regulations, and get the reading.
6.8 Aerosol valve deformation pressure
6.8.1 Instrument
Pressure tester: pressure gauge with accuracy of 1.5 level, range of 0~2.5MPa; special dial gauge: measuring range of 0~~10mm, graduation value of 0.01mm.
6.8.2 Test method
Put the sample into the pressure tester, pressurize it to 1.8MPa and keep it for 1min, then use the special dial gauge to measure the change between the height of the inner dome and the outer flange of the valve, and the change is not more than 0.25mm to be qualified. 6.9 Aerosol valve leakage test
6.9.1 Instrument
Leakage tester: pressure gauge measuring range 0~1.0MPa, accuracy 1.5 grade. 6.9.2 Test method
Put the sample into the leakage tester, inflate and pressurize to 0.8~0.85MPa, and keep it for 1min without bubbles to pass. 7 Inspection rules
The number of shipments is a batch, and one spray can or aerosol valve is a unit product. 7.1 Factory inspection
7.1.1 The items listed in 5.1.1, 5.1.2, 5.1.3, 5.2.2, 5.3.2, 5.4, 5.5, and 5.6.4 of this standard technical requirements shall be inspected according to the test report issued by a third party. If one of them fails, the batch of spray cans shall be judged as unqualified. 7.1.2 Determine whether the batch of spray cans is qualified according to the inspection items and defect classification table (see Table 4). 5m
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Inspection items
Dimensions (D, D2, H41, 22)
Paint film gloss
Paint film adhesion
Paint film impact strength
Spray can, aerosol valve leakage test
Spray can, aerosol valve deformation pressure
Spray can burst pressure
Conductivity reading of inner coating of aluminum can
7.2 Determination rules
Normal inspection secondary sampling plan (GB2828). The inspection level adopts S-4.
GB 13042--91
Class A unqualified
Qualified quality level, Class A unqualified AQL=1.5, Class B unqualified AQL-2.5;
Class C unqualified AQL-6.5.
Number of identification groups (see Table 5)
1200~10 000
10001~35000
Above 35001
Type inspection
Number of sampling
Sample size
Type inspection should be carried out in the following cases: Cumulative sample size
When conducting trial production and identification of new products or old products transferred to other factories for production; After normal production, if there are major changes in materials, structure, or process; During normal production, once a year:
When resuming production after long-term suspension of production:
When there is a major difference between the factory inspection result and the last type inspection result, when the national quality supervision and inspection agency proposes a type inspection requirement. Marking lean slow meat
Unqualified
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Class B unqualified
Unqualified
Class C unqualified
Unqualified
GB 13042-91
7.4.2 Type inspection items shall be carried out in accordance with the technical requirements of Chapter 5 of this standard, and its judgment rules and judgment group numbers shall be carried out in accordance with Articles 7.2 and 7.3 of this standard.
8 Marking, packaging, transportation, storage
8.1 Marking
8.1, 1 The surface of the packaging box shall be printed with the product name, specification, quantity, external dimensions of the packaging box, gross weight, manufacturer, and factory date. 8.1.2 Marked with the "Handle with care" mark.
8.2 Packaging
8.2.1 Use corrugated paper box packaging.
8.2.2 Products are arranged vertically and separated by cardboard. 8.2.3 Bundle with plastic strapping tape.
8.3 Transportation
Transport with care, and do not throw, prevent collision, and avoid rain, exposure and pollution. 8.4 Storage
Storage warehouses should be ventilated, dry and clean. Heavy pressure is strictly prohibited. Additional notes:
This standard was proposed and coordinated by China National Packaging Corporation. This standard was drafted by Tianjin Iron Printing Factory and Zhongshan Fine Chemical Industry Group Corporation. The main drafters of this standard are Li Dianshui, Ye Guoheng, Zhen Jiguang, Wang Mei and Wu Zhijian. 542
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