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National Standard of the People's Republic of China
Stainless steel pressure cooker1 Subject content and scope of application
GB 15066-94
This standard specifies the terminology, product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of stainless steel pressure cookers.
This standard applies to pressure cookers with a nominal working pressure of 50 to 100 kPa and formed from stainless steel plates. 2 Reference standards
Picture mark for packaging, storage and transportation
GB 191
GB 1404
GB2828
GB 2829
Phenolic molding compounds
Batch inspection, counting sampling procedures and sampling tables (applicable to inspection of continuous batches) Periodic inspection, counting sampling procedures and sampling tables (applicable to inspection of production process stability) GB/T 3190
GB3280
GB 4808
GB 4846
GB6388
GB 9684
Chemical composition of aluminum and aluminum alloy productsStainless steel cold-rolled steel plate
Sanitary standard for food pressure cooker seals
Rubber seals for daily pressure cookers
Transport packaging delivery and receipt marks
Sanitary standard for stainless steel tableware containers
GB11333
Sanitary standard for aluminum tableware containers
3 Terms
3.1 Single composite bottom
A layer of metal plate is composited on the bottom of the pot.
3.2 Double composite bottom
Two layers of metal plates are composited on the bottom of the pot.
3.3 Internal pressure resistance
The maximum internal pressure that the pressure cooker can withstand without plastic deformation and maintaining sealing. 4 Product classification
4.1 Varieties
According to the bottom structure of the pot, it can be divided into: single composite bottom (D), double composite bottom (S), and non-composite bottom. According to the closing form, it is divided into: screw-on type (A), drop-cover type (B), and press-cover type (C). 4.2 Specifications
It is expressed as "pot body inner diameter × volume".
The pot body inner diameter is in centimeters (cm) and is an integer, and uses an even number series; the volume is in liters (L). The State Administration of Technical Supervision approved the standard on March 15, 1994. Slow search text
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1994-12-01 implementation
4.3 Product marking
GB 15066-94
4.3.1 The product marking is expressed by the product structure type, pot mouth inner diameter, pot body volume, nominal working pressure (or nominal working pressure range) and standard number.
4.3.2 Marking examples
Screw-on single-bottom pressure cooker with inner diameter of pot mouth 26cm, pot body volume 10L, nominal working pressure 100kPa: AD26-10-100GB15066
Press-cover double-bottom pressure cooker with inner diameter of pot mouth 24cm, pot body volume 7L, nominal working pressure 50～100kPa: CS24-07-50X100GB15066
5 Technical requirements
5.1 Materials
5.1.1 The pot body and pot cover shall be made of 1Cr18Ni9, 0Cr19Ni9, 1Cr18Ni9Ti stainless steel in accordance with GB3280 or other steel grades with performance not lower than the above provisions.
5.1.2 The single-bottom metal shall be industrial pure aluminum plate in GB3190 or other metal plates with good thermal conductivity. The thickness of the composite aluminum plate shall not be less than 2.5 mm.
5.1.3 The inner layer of the double-bottom metal plate shall be made of the same material as the single-bottom metal plate, and the outer layer shall be made of a metal plate with protective and decorative functions. 5.1.4 The sealing ring shall comply with the technical requirements of GB4846. 5.2 Working pressure
The working pressure is 0.9 to 1.1 times the nominal working pressure. 5.3 Safety pressure
The safety pressure is 1.3 to 2.4 times the nominal working pressure. 5.4 Sealing performance
The steam pressure in the pot is within the range of 20kPa to the nominal working pressure, and no dripping or air leakage is allowed. 5.5 Internal pressure resistance
5.5.1 The internal pressure resistance shall not be less than 3 times the maximum working pressure. When tested according to the method in 6.5, there shall be no water leakage and no abnormality. After the pressure is released, the sealing test shall still meet the requirements of 5.4. 5.5.2 The pressure cooker with a cover shall not undergo plastic deformation within the safe pressure range. 5.6 Safety of closing the cover
If the pot body and the cover are not properly buckled, the pressure in the pot shall not exceed 5kPa. 5.7 Safety of opening the cover
The product should have a device that prevents the cover from being opened when the pressure in the pot is above 5 kPa. 5.8 Anti-blocking safety
The pressure cooker should have an anti-blocking safety device to prevent the exhaust hole of the pressure limiting valve from being blocked. 5.9 Hygiene requirements
5.9.1 The parts of the pressure cooker that come into contact with food shall comply with the provisions of GB9684 and GB11333. 5.9.2 The rubber parts that come into contact with the gas and substances in the pot shall comply with the provisions of GB4808. 5.10 Composite requirements
The composite bottom shall be firm and not cracked.
5.11 Firmness of handle connection
The handle connection shall be firm.
5.12 Other requirements
5.12.1 The components shall be intact.
5.12.2 Phenolic plastic parts shall have good boiling resistance. After the test in accordance with 6.12, there shall be no cracks, bubbles, pores and obvious discoloration, and no obvious irritating odor.
5.13 Product surface quality
GB15066-94
The product surface quality and grading requirements shall comply with the provisions of Table 1. Table 1
Item name
Polished surface roughness
Sanding surface roughness
Stretching marks
Composite bottom
Superior product
No alkali corrosion, oil stain,
Not allowed
Not allowed
Not allowed
Not allowed
Not allowed
Smooth periphery, round, clean, no burrs, no pores,
Correct, close fitting, no black Spots,
No burrs
Rectangular and clear
No alkali stains or oil stains
Stretch marks that can be seen by eye but not felt by hand are allowed within 10mm from the pot mouth
$1~3mm pits, no more than two points on the pot body and the pot cover, no cumulative length of scratches with a width of 0.2~0.5mm within 20mm,
the pot body and the pot cover shall not exceed the pot mouth diameter
Pot body: no more than 4 mm, pointed shape is not allowed
Cover: not allowed
No exposed parts are allowed
The periphery is smooth, round and burr-free, 1.5
mm deep 1 mm pores, slag inclusions do not exceed
More than two points
Straight, close, not piercingbzxz.net
Straight, clear
Standardized industry material competition
Qualified products
5~10 mm alkali corrosion, oil stains, the pot body and
pot cover each do not exceed one
width within 0.3~0.5mm, the outer
surface of the pot shall not exceed 5, and the inner surface shall not exceed 10
$1~3 mm pits, the pot body and the pot cover each do not exceed
More than six points, within 20 mm There shall not be three points inside
The cumulative length of scratches with a width of 0.5~0.8mm,
The pot body and the pot cover shall not exceed the pot mouth diameter
Body: no more than 4mm, no sharp shape is allowed
Lid: no more than 4mm, no sharp shape is allowed
No obvious burrs are allowed on the edge
The periphery is round, 1.5mm deep 1mm
The air hole and slag inclusion shall not exceed four points
Fat, not piercing||6 Test method
General matters
6.1.1 Test instruments and equipment are as follows:
One 0~250kPa pressure gauge of level 1.5;
One 1.5kPa pressure gauge of level 1.5 0～400kPa pressure gauge - one;
1.5 level 0～1MPa pressure gauge - one;
GB15066-94
SB200 pressure test pump or similar pressure test pump - one set; KL-20 tubular dynamometer;
liquefied petroleum gas stove or 2kW electric stove - one set; three pairs of special joints for pressure gauge with exhaust valve, several meters of rubber hose; one set of thermostatic box or electric stove (the furnace door should be larger than the sample); one water tank with a volume larger than the sample;
accuracy 0.0.2mm vernier caliper handle;
a set of roughness samples;
a set of alcohol lamp, beaker and bracket;
a number of yards, pliers tools and furnace tools; a special upper handle with a length of 125mm.
Note: The test equipment is not limited to the model, as long as it can meet the purpose requirements. 6.1.2 The test environment temperature is generally carried out at room temperature. 6.2 Working pressure test
Install a 0~250kPa pressure gauge at the safety valve hole of the pot cover; inject 70% water into the pot;
Close the pot cover and place the pot on the stove to heat it; when the pressure limiting valve operates normally, measure its pressure. 6.3 Safety pressure test
Install a 0～400kPa pressure gauge at the pressure limiting valve hole of the pot cover; perform according to 6.2b and c;
For fusible safety valve, the exhaust valve should be closed 20s after exhausting steam; measure the pressure when the safety valve just operates. 6.4 Sealing performance test
Perform according to 6.2a, b and c;
When the pressure gauge value reaches 20kPa to the nominal working pressure range, observe whether the pressure cooker has dripping or air leakage. 5 Internal pressure resistance test
Use the pressure gauge connector to install a 0.1MPa pressure gauge at the valve seat hole of the pot cover, and make other safety devices inoperable. Connect the pressure test pump, pot cover valve hole, and water supply system; fill the pot with water and cover it tightly;
Exhaust the air in the pot and pressurize it to the pressure specified in 5.5 with the pressure test pump, maintain the pressure for 30s, and observe and measure its pressure and performance; after depressurization, perform a sealing performance test to observe whether there is any leakage. e.
6.6 Safety test for closing the lid
Perform according to 6.2a, bc, and keep the pot cover in an unpositioned state; a.
Observe whether the pressure cooker is pressurized and whether it exceeds the specified range. Standard slow search text
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6.7 Open lid safety test
Perform according to 6.2a6.5b, c;
GB15066--94
Exhaust the air in the pot and pressurize it to the pressure specified in 5.7 with a pressure test pump; b.
Openable type Observe whether the pressure is quickly discharged during the opening process and whether it is safe and reliable; d Non-openable type Use a special handle to test, fix the lower handle, use a dynamometer to pull 100N horizontally at the end of the upper handle perpendicular to the center line of the upper handle, and observe whether it moves and opens. 6.8 Anti-blocking safety test
Add 3/16 of the pot body capacity of millet and 1/16 of glutinous rice into the pot, and then add water to 4/5 of the pot depth; a.
b. Install a 0-25kPa pressure gauge at the safety valve hole of the pot cover, close the exhaust valve, and cover the pot; place the pot on the stove to heat it. When the pot is continuously venting, put down the pressure limiting valve body and continue heating. Start timing from the exhaust of the pressure limiting valve. c.
Lift the pressure limiting valve once every 5 minutes for 5 seconds; d. Observe the pressure gauge value. The pressure shall not exceed 1.25 times the nominal working pressure within 10 minutes. 6.9 Tests for hygienic requirements
The determination of various harmful substances in the product can be carried out by the methods specified in the corresponding national standards. 6.10 Tests for composite bottom requirements
Put the sample in a furnace at a temperature of 300±25℃ and keep it at a constant temperature for 5 minutes; a.
b. Take out the sample and immerse it in water at room temperature to cool it; c.
Observe whether the composite bottom has cracks, and repeat 20 times. 6.11 Handle connection firmness test
Put a magnetic code with a weight three times the pot water capacity in the pot, hold the pot handle horizontally and lift it for not less than 0.8m, hold for 10 minutes, then take out the code and fill the pot with water, observe whether there is leakage or abnormality. 6.12 Boiling resistance test of phenolic plastic parts
Perform the test according to GB1404 and observe the results. 6.13 Product surface quality
Measure with self-test and vernier caliper with an accuracy of 0.02mm. 6.14 Surface roughness
Use roughness sample block to compare with the sample for visual inspection.
7 Inspection rules
Product inspection is divided into factory inspection and type inspection. 7.1 Factory inspection
7.1.1 Factory inspection shall be carried out in accordance with GB2828, with a normal inspection and one-time sampling plan. Defects are calculated based on the number of unqualified products per 100 units. The inspection items, unqualified classification, inspection level and qualified quality level are shown in Table 2.563
Note transmission slow network bs
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Inspection items
Working pressure
Safety pressure
Sealing performance
Resistant to internal pressure
Safety of closing the lid
Safety of opening the lid
Anti-blocking performance||t t||Firmness of handle connection
Roughness of polished surface
Roughness of sanded surface
Stretching marks
Composite bottom
7.1.2 Judgment rules
GB15066--94
Classification of non-conformities
Corresponding clause
Inspection level
Acceptable quality level (AQL)
One Class C non-conformity is allowed for superior products, and the Class C non-conformity shall comply with the requirements specified for first-class products; two Class C non-conformities are allowed for first-class products, and the two Class C non-conformities shall comply with the requirements specified for qualified products. 7.2 Type inspection
7.2.1 Type inspection shall be conducted in any of the following cases: a.
Trial production and identification of products for transfer to another factory; after formal production, when there are major changes in structure, materials and processes that may affect product performance; at least once a year in normal production;
When the product is discontinued for more than 6 months and then restarted; when there is a major difference between the factory inspection result and the last type inspection result; when the national quality supervision agency proposes a type inspection requirement. Standard manufacturing zero net
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GB15066-94
7.2.2 Type inspection shall be carried out in accordance with the provisions of GB2829, using a secondary sampling plan with discrimination level I, and defects shall be calculated as the number of unqualified products per 100 units. The samples for type inspection shall be drawn from the qualified batches of factory inspection. Before the type inspection, all sample units shall be inspected according to the factory inspection items. If any sample unit is found to be unqualified, it shall be replaced by the unit product manufactured normally in this cycle, and this situation shall be recorded in the type inspection report, but it shall not be used as the basis for judging whether the type inspection is qualified or not. For the inspection items listed in Table 2, the sample n=n2=3, the unqualified quality level RQL value: Class A 50, Class B 65. Class C 80; the unqualified classification, sample size, and unqualified quality level of the remaining inspection items are shown in Table 3.
Inspection items
Health requirements
Composite requirements
Phenolic plastic parts
Unqualified classification
Note: The hygiene requirements inspection in Table 3 adopts a single sampling plan. 8 Marking, packaging, transportation and storage
8.1 Marking
8.1.1 The product shall have the following markings:
trademark,
company name;
quality grade;
product mark;
year and month of manufacture.
The product box shall have the following markings:
trademark;
company name;
product name:
product mark.
The following marks shall be on the packing box:
Product name:
Trademark;
Product mark,
Implementation standard number and name;
License mark, number and validity period;
Manufacturer name, address, postal code;
Corresponding clauses
Wetproof, upward, handle with care marks, and shall comply with the provisions of GB191: The remaining marks shall comply with the provisions of GB6388.
8.2 Packaging
Sample size
n = n2 3
ni == n2 3
Unqualified quality level
8.2.1 Each pressure cooker shall be packed in a separate box, and the pot body and lid shall be packed in neutral packaging. The box should contain the product instruction manual and certificate of conformity. The instruction manual should indicate the product implementation standard number and name, license mark, number and validity period, factory address, and postal code. 8.2.2 The outer packaging should be fastened with strapping tape.
Labeling degree thin network AW.bo
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8.3 Transportation
GB15066—94
During transportation, it is not allowed to throw, collide, and it is strictly forbidden to press heavily and prevent rain. It is not allowed to be transported together with corrosive items. 8.4 Storage
The warehouse environment conditions are good, and the relative temperature is not more than 85%; a.
The height of the product from the ground and the distance from the wall are both more than 100mm; b.
Do not store together with corrosive items. Additional notes:
This standard is proposed by the Ministry of Light Industry of the People's Republic of China. This standard is under the jurisdiction of the Daily Hardware Sub-Technical Committee of the National Hardware Products Standardization Technical Committee. This standard was drafted by Yangjiang State-owned Knife Factory and Guangzhou Aluminum Products Factory No. 3; Liaoning Fushun Stainless Steel Products Industrial Co., Ltd., Yantai Aluminum Products Factory, and Shenyang Shuangxi Pressure Cooker Manufacturing Corporation participated in the drafting. The main drafters of this standard are Tan Ren and Liao Zhihui. This standard refers to the Japanese industrial standard JISS2051-85 "Household Pressure Cookers and Steamers". 566
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