Some standard content:
Light Industry Standard of the People's Republic of China
1 Subject content and scope of application
QB/T1691—1993
This standard specifies the terminology, product classification, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of aluminum kettles. This standard applies to kettles made of aluminum and aluminum alloy plates. 2 Reference standards
Packaging storage and transportation pictorial signs
GB/T2828 Batch inspection counting sampling procedures and sampling tables (applicable to continuous batch inspection) GB/T2829 Periodic inspection counting sampling procedures and sampling tables (applicable to the inspection of production process stability) GB/T3562 Analysis methods for hygienic standards of aluminum tableware containers GB5945 Test methods for oxidation treatment layers of aluminum or aluminum alloys for light industrial products GB/T6388 Shipping and receiving marks for transport packaging
GB/T6543 Corrugated paper boxes
GB11333 Hygienic standards for aluminum tableware containers
3 Terms
3.1 Integral pot
A pot whose body is formed by integral processing.
3.2 Inlaid bottom pot
A pot whose body is processed in parts and whose bottom is inlaid. 3.3 Self-sounding pot
A pot that has a self-sounding function when the water boils. bZxz.net
3.4 Rated capacity
Designed capacity.
3.5 Actual capacity
Capacity contained by 90% of the height of the kettle.
3.6 Edge
The surface of the part above 90% of the height of the kettle.
3.7 Water level mark
The mark of the water level of the self-sounding kettle.
3.8 Peeling
The cracking or delamination on the surface of the product.
3.9 Bubbles
Convex shapes containing gas on the surface of the product. 3.10 Pits
Approved by the Ministry of Light Industry of the People's Republic of China on March 28, 1993 384
Implemented on October 1, 1993
Depressions formed on only one side of the product.
QB/T1691—1993
The same part of the product has a depression on one side and a bulge on the other side. 3.12 Pointed cancer
The same part of the product has a damaged depression on one side and a pointed bulge on the other side. 3.13 Shrinkage
The depression on both sides of the same part of the product. 3.14 Wrinkles
The surface of the product is partially wavy or has other irregular wrinkles. 3.15 Spinning marks
The surface marks of the product caused by spinning.
3.16 Scratches
The groove marks on the surface of the product caused by hard objects. 3.17 Burrs
The thorn-like metal protrusions caused by product processing. 3.18 Alkali stains
The traces of alkali remaining on the surface of the product.
3.19 Oil spots
The obvious traces of oil stains on the surface of the product that have not been removed. 3.20 Oxidation corrosion spots
During oxidation, small honeycomb-shaped holes or spots appear on the surface of the product. 3.21 Electric shock
During oxidation, the surface of the product is burned by electric sparks. 3.22 Bottom center thickness
The material thickness at the bottom center of the kettle body.
4 Product classification
4.1 Varieties
4.1.1 Products are divided into ordinary kettles and self-sounding kettles according to their functions. 4.1.2 Products are divided into integral kettles and bottom-inlaid kettles according to their structures. 4.1.3 Products are divided into pure aluminum kettles and aluminum alloy kettles according to their materials. 4.1.4 Products are divided into whitewashed kettles, sanded kettles, polished kettles, oxidized kettles, etc. according to surface treatment methods. 4.2 Specifications
Product specifications are divided into 0.5, 1.0, 1.5, 2.0, (2.5), 3.0, (3.5), 4.0, (4.5), 5.0, (5.5), 6.0, 7.0, 8.0, 9.0L according to rated capacity.
Note: Specifications without brackets are preferred series. 4.3 Code
Product codes are specified in Table 1.
4.4 Marking
QB/T1691—1993
Product function and structure
Ordinary kettle
4.4.1 Product marking is as follows:
4.4.2 Marking example
Self-sounding kettle
Standard number
Surface treatment method
Rated capacity, L (integer liters are expressed as integers)Surface treatment code
Function and structure code
Product name
Example 1: Polished ordinary integral kettle with a rated capacity of 4.0L made of industrial pure aluminum. Pure aluminum kettle ZH-P4QB/T1691
Example 2: Oxalic acid light oxidation self-sounding plated bottom kettle with a rated capacity of 5.51. made of aluminum alloy. Aluminum Alloy Kettle MFH-CQ5.5QB/T1691
5 Technical Requirements
5.1 Performance
5.1.1 The actual capacity of the product shall not be less than the rated capacity. 5.1.2 The minimum thickness of the center of the bottom of the product shall comply with the provisions of Table 2. Table 2
Rated capacity, L
Pure aluminum kettle
Light oxalic acid
Aluminum alloy kettle
Rated capacity, L
QB/T1691-1993
Pure aluminum kettle
Aluminum alloy kettle
5.1.3 The corrosion resistance of the bottom of a pure pot is not more than 0.02g/cm; the corrosion resistance of the bottom of an aluminum alloy kettle is not more than 0.005g/cm. 5.1.4
The product shall not be water-permeable.
The plane of the spout shall not be lower than the plane of the body. 5.1.5
5.1.6 The lid and body of a general kettle shall be able to open and close freely, and the clearance shall not exceed 2% of the inner diameter of the body. When a self-sounding kettle is under load, the lid shall not lift the body.
A self-sounding kettle shall have a water level mark.
The volume of a self-purchased kettle shall not be less than 55dB
The corrosion resistance of the oxide film shall comply with the provisions of Table 3.
Oxidation type
Oxalic acid oxidation
Muscarinic acid light oxidation
Sulfuric acid oxidation
5.2 Hygiene requirements
The hygiene requirements of the parts in contact with water shall comply with the provisions of GB11333. 5.3 Requirements for main components
5.3.1 After the load test, the kettle shall be free of cracks. The deformation shall not exceed 2%. Quality
5.3.2 After the boiling resistance test, accessories made of phenolic plastic or other plastic materials should be free of cracks, bubbles, irritating odor and discoloration. 5.4 Surface quality
5.4.1 The product is not allowed to have shrinkage, and the bottom is not allowed to be thin. The two sides of the same part are not allowed to have defects such as bubbles and peeling at the same time. Oxidation products are not allowed to have oxidation spots.
5.4.3 The surface quality of the pot lid is consistent with the requirements of the outer wall of the pot body. 5.4.4 Other surface quality requirements shall comply with the provisions of Table 4. 387
Oxidation color
Spinning marks
Riveted appearance
6 Test methods
6.1 Actual capacity
QB/T1691--1993
Color is basically uniform, no electric shock
No alkali stains, oil spots
Brightness and luster are basically uniform
Fine, clean and uniform
(1) Strip peeling with a length of 6mm to less than 30% of the outer diameter of the kettle body and a width of 1-2mm.
a. Pots ≤2L:
≤1 strip on the bottom, ≤2 strips on the wall;
b. Pots >2L:
2 strips on the bottom, ≤3 strips on the wall;
(2) 2-5mm block peeling, not allowed on the bottom, ≤2 strips on the wall
1-2mm bubbles, not allowed on the bottom, ≤2 on the wall 1-3mm pits, ≤3 on the bottom and wall Cancer within 6mm:
a. Pots ≤2;
b.>2L ≤3 pots
even, fine and shallow
1) The wrinkles on the edge and the bottom of the pot do not exceed 15% of the circumference,
(2) The spout has ≤2 obvious wrinkles
The bottom is not allowed to have electric shock injuries, and other parts are not allowed to have electric shock injuries of more than 2mm2
The bottom is free of alkali collapse, and the wall is not allowed to have obvious alkali collapse.
The bottom is not allowed to be exposed
(1) Strip peeling with a length of 10mm to less than 50% of the outer diameter of the pot body and a width of 2~3.
≤2 lines on the bottom, ≤4 lines on the wall;
(2) 5~8mm block peeling, not allowed on the bottom, ≤3 pieces on the wall
1~3mm bubble, ≤1 point on the bottom, <3 points on the wall1~3mm pit, ≤5 points on the bottom and wall6~~10mm thin ≤3
No fish scale marks
(1) The wrinkles on the edge and the bottom of the pot shall not exceed 25% of the circumference
(2) The obvious wrinkles on the spout shall be ≤3
Length 20mm to 30% of the diameter of the pot bottom, width 0.Scratches below 5mm:
2 on the bottom, ≤3 on the wall
Exposed parts are not allowed
Riveted flat, the pot beam, spout and pot body are basically symmetrical and the writing is clear
Depth vernier caliper: accuracy not less than 0.05mm;a.
Measuring cup: 500mL.
Length 20mm to 50% of the pot bottom diameter, width 0.5mm scratches below:
≤3 on the bottom, ≤4 on the wall
Not allowed on the edge
Marks can be identified
6.1.2 Steps
Place the depth vernier caliper on the flat surface of the pot body and measure 10% of the height of the pot body downwards, and fill the pot with water to the measuring point;a.
b.: Pour water into the measuring cup and observe its capacity.
6.2 Minimum thickness at the center of the pot bottom
6.2.1 Instrument
Thickness gauge: accuracy not less than 0.01mm.
6.2.2 Procedure
QB/T 1691--1993
Measure three points at random on the center plane of the pot bottom (within d50mm) and take the average value. 6.3 Corrosion resistance of pot bottom
6.3.1 Instrument
Balance: sensitivity 0.1mg;
Constant temperature box: 0~200℃;
Thermometer: 0~200℃,
Beaker: 250mL;
Thickness gauge: accuracy not less than 0.01mm.
6.3.2 Steps
Wash with water;
Take two 20mm×20mm square specimens (oxidation products are treated with 35% sulfuric acid solution at 40°C for stripping), clean them with acetone, dry them, cool them, and weigh them on a balance; bend the specimen into an arc, place the convex side upward in a beaker containing 200mL hydrochloric acid solution (the volume ratio of analytical pure hydrochloric acid to distilled water is 1:10), and place it in a (27±1)℃ constant temperature box for 2h; take out the specimen, rinse it with distilled water 3 times, place it in a 110-120℃ oven for 30min, cool it to room temperature after taking it out, and then weigh it on a balance.
Calculation formula:
q=(Q1—Q2)/(8+88)
Wherein: q---weight loss per unit area, g/cm2; Q---weight of the sample before corrosion, 8;
Q2---weight of the sample after corrosion, more,
-thickness of the sample, cm.
6.4 Water seepage
6.4.1 Instrument
a. Electric furnace 2000W;
b. Measuring cup: 500mL.
6.4.2 Steps
Pour the rated capacity of boiling water into the pot, put it on the electric furnace and boil it for 5 minutes, and observe its leakage during this time. 6.5 Height of the spout
6.5.1 Instrument
Steel ruler: the accuracy shall not be less than 0.5mm.
6.5.2 Steps
Place the side of a steel ruler from the plane of the pot body mouth to the plane of the pot spout mouth, and observe the height. 6.6 Opening and closing properties of the pot lid
6.6.1 Instruments
Vernier caliper: accuracy not less than 0.02mm; a.
Measuring cup: 500mL.
6.6.2 Opening and closing properties test steps for ordinary pots
QB/T 1691—1993
Use a vernier caliper to measure the minimum value of the outer diameter of the pot lid mouth and the maximum value of the inner diameter of the pot body mouth, and observe the difference. 6.6.3 Opening and closing properties test steps for self-sounding pots
Pour the rated volume of water or a substance of the same mass into the pot, and after the pot lid and the pot body are closed, lift the pot lid; i.
When the pot lid is detached, the pot body cannot detach from the supporting surface. b.
6.7 Water level mark of self-ringing kettle
Observe the water level mark in the product according to the water level mark position or diagram specified in the instruction manual. 6.8 Volume
6.8.1 Instrument
a. Sound level meter: accuracy not less than 0.5dB;
b. Electric furnace: 2000w.
6.8.2 Environmental conditions
Ambient noise: below 40dB.
6.8.3 Steps
Fill the pot with water to the water level mark, close the lid, and boil it on an electric stove 1m above the ground; place the sound level meter on the circumference of the space with a radius of 1m centered on the pot, and always aim the probe at the pot. After the sample is boiled and makes a sound, measure it once at a vertical height of 0.5, 1.0, and 1.5m from the ground within 5 minutes, and take the average volume. 6.9 Corrosion resistance of oxide film
6.9.1 The corrosion resistance test method of oxalic acid and sulfuric acid oxidation products shall be carried out in accordance with Article 2.2 of GB5945. 6.9.2 The corrosion resistance test method of oxalic acid light oxidation products shall be carried out in accordance with the corrosion resistance test method of oxalic acid and sulfuric acid oxidation products. When copper sulfate solution is dropped in, if there is no color change for 2 minutes, the oxide film is not penetrated. 6.10 Hygiene requirements
Carry out in accordance with the provisions of GB/T3562.
6.11 Pot beam load resistance
6.11.1 Instrument
Special pot beam load resistance test machine;
Height vernier caliper: accuracy not less than 0.05mm. b.
6.11.2 Steps
Measure the total height from the bottom of the pot to the center of the pot beam. Remove the cover and fix it on the base of the test machine. Connect the fixture at the center of the pot beam to the load measuring mechanism a.
and apply the load for 1min.
Load formula:
F9. 8(m1+3m2)
Where. F----the load applied to the sample, N;
m-the weight of the sample, kg;
the weight of the water of the rated capacity of the sample, kg.
b. After loading, first observe whether there are cracks in the pot beam, then re-measure its height and calculate it with the formula for the deformation of the pot beam. Thihal×100
Where: - —Deformation of the pot beam, %;
h Total height from the bottom of the pot to the center of the pot beam before the test, mm; hz —---Total height from the bottom of the pot to the center of the pot beam after the test, mm. 6. 12 Boiling resistance of plastic accessories
6.12.1 Apparatus
Cooking utensils;
b. Aluminum pot.
6. 12.2 Steps
QB/T 1691-1993
a. Wash the sample, immerse it in a pot of water at room temperature, and heat it on the stove; b. Start the timer when the water boils, and use the membrane sense to determine whether there is any irritating odor at any time during the boiling process. Stop heating after 30 minutes, take out the sample and put it in water at room temperature to cool;
c. Observe the sample for cracks, pores, bubbles and obvious discoloration. 6.13 Surface quality
Surface quality items are inspected by general measuring tools and visual inspection. 7
Inspection rules
7.1 Products must be inspected and qualified by the manufacturer before they can leave the factory. 7.2 Inspection classification
Product inspection is divided into factory inspection and type inspection. 7.3 Factory inspection
It is carried out in accordance with the provisions of GB/T2828, and a normal inspection and one-time sampling plan is adopted. The number of unqualified products per 100 units is counted. 7.3.1 Inspection items, unqualified classification, inspection sequence, inspection level and qualified quality level shall comply with the provisions of Table 5. Table 5
Inspection items
Oxidation color
Riveted appearance
Spout height
Opening and closing of the lid
Water level mark of the self-ringing kettle
Surface quality of the lid
Spinning mark
Actual capacity
Inspection order for classification of non-conforming items
Corresponding chapters and articles
Technical requirements
5.4.4(10)
5.4.4(11)
Test method
Inspection level IL
Qualified quality Level (AQI)
Inspection items
Shrinkage and pointed burning, etc.
Oxidation corrosion spots
Minimum thickness of the bottom center
Unqualified classification
QB/T1691--1993
Inspection sequence
Corresponding chapters and articles
Technical requirements
Inspection method
Inspection level L
Qualified quality level (AQL))
When the batch is judged as qualified after factory inspection, the delivery party shall replace the unqualified products with qualified products before submission. 7.3.2
7.4 Type inspection
Type inspection shall be conducted in the following cases. Trial design and identification of new products or old products for transfer to factory production; after formal production, if there are major changes in structure, materials, and processes that may affect product performance, during normal production, no less than once a year,
when the product is resumed after a long-term suspension; when the results of the factory inspection are significantly different from the last type inspection, and the national quality supervision agency proposes a requirement for type inspection. Type inspection shall be conducted in accordance with the provisions of GB/T2829, using a single sampling plan with a discrimination level of 1. Count the number of unqualified products per 100 units of product.
7.4.3 Samples for type inspection shall be drawn from the qualified batches of factory inspection, with a sample size of n of 8. First, test the 1st group of items in Table 6, and judge them according to the three groups of judgment arrays; after passing, 3, 2, and 2 pieces shall be drawn from this sample, and they shall be tested according to the 1st, 2nd, and 3rd groups of items, respectively. Its groups, inspection items, non-conforming classification, inspection sequence, non-conforming quality level, sample size and judgment array shall comply with the provisions of Table 6. Table 6
Oxidation color
Riveted appearance
Pot spout degree
Pot lid opening and closing
Self-made chicken wheat water level standard
Pot lid surface quality basket
Spinning indentation
Non-conforming
Corresponding chapters and articles
Technical ink requirements
5. Millimeter, 4 (4)
5. Committee, academic development)
5.4, set day 10)
Test method
Unqualified quality level (ROL sample size shop 50
Judgment array
Actual container
Shrinkage and pointed cancer, etc.
Oxidation corrosion spot
Minimum thickness of the bottom center
Oxidation film corrosion resistance
Plastic Boiling resistance of accessories
Load resistance of kettle bottom
Corrosion resistance of bottom
Hygiene requirements
Unqualified
Marking, packaging, transportation, storage
8.1 Marking
8.1.1 The product should have the following markings:
Manufacturer name;
Trademark;
Rated capacity;
Quality grade.
QB/T 1691--1993
Corresponding chapters and articles
Technical requirements
5.4.4(11)
Test method
Judgment array
Rejection quality level (RQL) sample size nAcR.
The following markings should be on the packaging box:
Product mark, factory address, postal code, quality grade, and other markings should comply with the relevant provisions of GB/T6388. a.
Storage and transportation graphic markings should comply with the relevant provisions of GB191. 23
8.1.3 The product mark, trademark, manufacturer name, factory address and postal code should be indicated in the instruction manual. The water level mark position should be indicated in words and pictures in the instruction manual of the self-sounding kettle. 8.2 Packaging
Each product must be packaged separately in a box, and the contact between the kettle body and the lid must be wrapped or padded with packaging that does not corrode the product. 8.2.1||tt ||The packaging box must be sealed and fastened with strapping tape. A packing list should be included in the box. 8.2.2
8.2.3 Corrugated cardboard packaging boxes should comply with GB/T6543. 8.2.4 The packaging box should contain instructions for use and a certificate of conformity. 8.3 Transportation
Handle with care during transportation. It is strictly forbidden to transport with corrosive items. Prevent moisture and inversion during transportation. 8.4 Purchase and storage
8.4.1 Storage conditions
OB/T 1691
The warehouse should be well ventilated and the relative humidity should not exceed 85%; 1993
b. When stacking, it should be at least 100mm from the ground and 200mm from the wall. c. It is strictly forbidden to store with corrosive items.
8.4.2 Storage shelf life
In accordance with the provisions of 8.4.1, the storage shelf life of washed, sanded and polished products is one year from the date of leaving the factory, and the storage shelf life of other products is two years.
Additional remarks:
This standard is proposed by the Quality Standards Department of the Ministry of Light Industry. This standard is under the jurisdiction of the National Daily Hardware Standardization Center. This standard was drafted by Shanghai Aluminum Products Factory No. 2; Ningbo Shuangyuan Aluminum Products (Group) Company Aluminum Kettle Factory, Tianjin Aluminum Products General Factory, Yizheng Aluminum Products General Factory, and Hangzhou Aluminum Products General Factory participated in the drafting. The main drafters of this standard are Feng Huashui, Li Deming, Chen Jinxiang, Yu Jianxi, Ding Xuefeng and Feng Qingrong. This standard adopts the Japanese Industrial Standard JISS2010-1986 "Aluminum Plate Utensils". From the date of implementation of this standard, the professional standard ZBY73007-1985 "Aluminum Kettle" issued by the former Ministry of Light Industry will be abolished.1, the shelf life of washed, sanded and polished products is one year from the date of leaving the factory, and the shelf life of other products is two years.
Additional notes:
This standard is proposed by the Quality Standards Department of the Ministry of Light Industry. This standard is under the jurisdiction of the National Daily Hardware Standardization Center. This standard was drafted by Shanghai Aluminum Products Factory No. 2; Ningbo Shuangyuan Aluminum Products (Group) Company Aluminum Kettle Factory, Tianjin Aluminum Products General Factory, Yizheng Aluminum Products General Factory, and Hangzhou Aluminum Products General Factory participated in the drafting. The main drafters of this standard are Feng Huashui, Li Deming, Chen Jinxiang, Yu Jianxi, Ding Xuefeng, and Feng Qingrong. This standard refers to the Japanese Industrial Standard JISS2010-1986 "Aluminum Plate Containers". From the date of implementation of this standard, the professional standard ZBY73007-1985 "Aluminum Kettle" issued by the former Ministry of Light Industry will be abolished. 3941, the shelf life of washed, sanded and polished products is one year from the date of leaving the factory, and the shelf life of other products is two years.
Additional notes:
This standard is proposed by the Quality Standards Department of the Ministry of Light Industry. This standard is under the jurisdiction of the National Daily Hardware Standardization Center. This standard was drafted by Shanghai Aluminum Products Factory No. 2; Ningbo Shuangyuan Aluminum Products (Group) Company Aluminum Kettle Factory, Tianjin Aluminum Products General Factory, Yizheng Aluminum Products General Factory, and Hangzhou Aluminum Products General Factory participated in the drafting. The main drafters of this standard are Feng Huashui, Li Deming, Chen Jinxiang, Yu Jianxi, Ding Xuefeng, and Feng Qingrong. This standard refers to the Japanese Industrial Standard JISS2010-1986 "Aluminum Plate Containers". From the date of implementation of this standard, the professional standard ZBY73007-1985 "Aluminum Kettle" issued by the former Ministry of Light Industry will be abolished. 394
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.