Some standard content:
National Standard of the People's Republic of China
Dontestic porcelain
Subject content and scope of application
GB/T 3532--1995
GB3532-83
GB4003-83
GB 11421-89
GB11422.-89
This standard specifies the product classification, technical requirements, test methods, inspection rules and markings, packaging, transportation and storage rules of daily-use porcelain. This standard applies to daily-use fine porcelain, general porcelain and glazed porcelain products. It does not apply to products for which other national standards or industry standards have been formulated. 2 Reference standards
GB2828 Sampling procedures and sampling tables for batch inspection (applicable to inspection of continuous batches)GB 2829
GB3295
Sampling procedures and sampling tables for periodic inspection (applicable to inspection of production process stability) Determination method for glossiness of daily-use ceramics
GB/r 3298
GB3299
GB3300
GB3301
GB3302
GB3303
GB3534
GB5000
GB 11423
GB12651
Determination method for thermal stability of daily-use ceramics
Determination method for water absorption of daily-use ceramics
Deformation inspection method for daily-use ceramics
Determination method for volume, diameter error, weight error, height error and defect size of daily-use ceramics Rules for acceptance, packaging, marking, transportation and storage of daily-use ceramics Terminology for defects of daily-use ceramics
Determination method for lead and cadmium dissolution from daily-use ceramics Terminology of daily-use ceramics
Technical conditions for carton packaging of daily-use ceramics
Allowable limit of lead and cadmium dissolution from ceramic products in contact with food QB/T1503
3 Determination method for whiteness of daily-use ceramics
3 Terminology
According to GB5000 and GB3303.
4 Product classification
4.7 According to the use of the product, it can be divided into plates and dishes, bowls, pots, cups and other utensils. 4.2 According to the shape of the product, it can be divided into fan-shaped products, small hollow products, large hollow products, and .3 According to the specifications of the product, it can be divided into small, medium, large and special types. The specification range is shown in Table 1. Table 1
Diameter of plates and dishes, mm
Approved by the State Bureau of Technical Supervision on May 2, 1995, medium-sized
128~228
228-350
Implementation on December 1, 1995
Diameter of bowls, mm
Capacity of pots, mm
Diameter of cups, mm
5 Technical requirements
GB/T3532
Continued Table 1
110～<175
250～<1 000
175~250
1 000~2 400
Depending on the similarity of their appearance, the above-mentioned types of 5.1 products are divided into superior products, first-class products and qualified products according to the technical requirements. Special type
5.2 Water absorption rate: fine porcelain products are not more than 0.5%, general porcelain products are not more than 1.0%, and jujube products are not more than 3.0%. 5.3 Thermal stability
5.3.1 Complete set or series of products: tableware is represented by medium-sized plates and bowls, and tea and coffee sets are represented by cups and gu products. They will not crack after heat exchange from 180℃ to 20℃ for one time.
5.3.2 Non-complete set or series of products: small and medium-sized products will not crack after heat exchange from 180℃ to 20℃ for one time; large and special products will not crack after heat exchange from 160℃ to 21℃ for one time.
5.4 The amount of lead and cadmium dissolved should comply with the provisions of GB12651. 5.5 The whiteness (recommended index) of white porcelain, the glossiness of glaze (except matte glaze) and the color difference of glaze color of complete sets of products should comply with the provisions of Table 2. Table 2
Glossiness
Superior products
5.6 Products are not allowed to have glaze explosion, bumps, cracks and leakage defects. 5.7 Product specification errors
First-class products
Qualified products
5.7.1 Diameter error: ±1.5% is allowed for diameters equal to or greater than 60mm, and ±2.0% is allowed for diameters less than 60mm. 5.7.2 Height error: ±3.0%.
5.7.3 Weight error: ±6.0%.
5.8 The lid of products with lids should basically match the mouth. When the pot is tilted at 70°, the lid must not fall off. When the lid moves to one side, the distance between the lid and the mouth of the pot must not exceed 3mm. The mouth of the spout must not be lower than 3mm below the mouth of the pot. 5.9 Complete sets of products are required to be matched without errors, and the color of the flower surface must be basically consistent. 5.10 The glaze, pattern, mouth, bottom (edge) of superior products are basically smooth; they should be stable when placed on a flat surface. The glaze, pattern, mouth, bottom (edge) of first-class products and qualified products are basically smooth: they should be basically stable when placed on a flat surface. 5.11 The bottom mark (referring to the trademark pattern and text) should be correct and clear, and should not be obviously skewed or eccentric. 5.12 The appearance quality of products shall be graded according to the requirements of Table 3 and shall meet the following requirements: a.
Each superior product shall not have more than 2 defects; b. Each second-class product shall not have more than 4 defects; c.
Each qualified product shall not have more than 6 defects. Serial number
Product specifications
Dish caliber:
128~205
205～280
280-360
Fish plate caliber:
200240
240~<320
Bowl caliber:
110～<175
175～250|| tt||Diameter of pots:
Diameter of cups:
Small and medium-sized
Large and special-sized
GB/T3532-1995
Superior products
First-class products
Qualified products
Not more than 0.7% of the diameterNot more than 1.0% of the diameter1Not more than 2.0% of the diameter
Not more than 1.0% of the long diameter||tt ||Not more than 1.5% of the long diameter
Not more than 2.5% of the long diameter
Not more than 0.7% of the diameterNot more than 1.5% of the diameterNot more than 2.5% of the diameter1.0
1. Polygonal deformation is not allowed for superior products; first-class qualified products need to reduce the specified range by 50%
2. The bottom is not very obvious for superior products, not obvious for second-class products, and not too obvious for qualified products.
Not allowed
The visible surface is not too dry 0.5
Limited to 2, non-visible surface is not
Greater than 1.0Limited to 2
The visible surface is not more than 1.0
Limited to 2, non-visible surface is not
Greater than 1.5Limited to 2
The mouth is not allowed to fall, and the other
The slag should be removed
The visible surface is not more than 1. 5
Limited to 3. Non-recessed surface shall not be greater than 2.0, limited to 4
Shown surface shall not be greater than 2.5
Limited to 5, non-marrow surface shall not be greater than 3.0, attached to 6
Slag on the edge shall not be greater than .5
and 1, and the slag on other parts shall be removed from the sharp edge
Melting stream,
Gypsum boat
Product Product specifications
GB/T3532—1995
Continued table 3
Superior products
First-class products
Obvious thanks are not allowed, non-obvious
No more than 0.5, limited to 4
Meeting is not more than 0.5, limited to 2
Obvious meeting is not allowed, non-obvious
Meeting is not more than 0.5, limited to 3
No more than 0.5, limited to 6| |tt||Visible bacteria are not allowed, non-visible bacteria are not more than 0.5, limited to 8. The surface is not more than 0.54
Visible surfaces are not allowed, non-visible
Surface is not more than 0.5, limited to 5
Not allowed
Not allowed
Not allowed
Not more than 0.5, limited to 10
Qualified products
Not more than 1.0, limited to 6
Not more than 1. 0 limited to 8
Not greater than 1.0 limited to 12
Not greater than 1.0 limited to 16
Grouting products: The range of first-class products and qualified products remains unchanged, and the quantity increases by 1 each
Not greater than 05 limited to 2
Not greater than 0.5 limited to 2
Not greater than 0.5 limited to 3
Not greater than 1.0 limited to 3
The visible surface does not exceed 3.0,
non-visible surface does not exceed
not greater than 2.0 limited to 3
not greater than 2.5 limited to 3
not greater than 3.0 limited to 4
not greater than 3.5 limited to 4
visible surface does not exceed 12.0.
non-visible surface does not exceed
bottom foot sticky dirty first-class products are not obvious·quality products are not strict. Visible surface is not allowed, non-visible
surface is not greater than 1.0 limited to 1
visible surface is not allowed, non-visible
surface is not greater than 1.5 limited to 1
not greater than 2.0 limited to 2
not greater than 3.0 limited to 2
visible surface is not allowed, non-visible
is 1 not more than 3.0 limited to 2
face not more than 2.0 limited to 1
1 not more than 4.0 limited to 2
visible face is not allowed, non-visible
face not more than 2.0 limited to 2
excavation,
lack of glaze (package)
including pressed glaze,
shrinkage glaze, rolling
product specifications
GB/T3532—1995
continued table 3
superior products
first-class products
not more than 1.0 limited to 1
not more than 1.5 limited to 2
not allowed
visible face is not allowed, non-visible
face does not exceed 1. 0
Visible face is not allowed, non-visible
face does not exceed 2. 0
Visible face is not allowed, non-visible
face does not exceed 4. 0
Visible face is not allowed, non-visible
face does not exceed 8. 0
Not more than 2.0, limited to 2
Not more than 2.0, limited to 4
Not more than 6.0
Not more than 9.0
Not more than 18.0
Not more than 24.0
The above regulations are suitable for those with flat underglaze. Those with protrusions shall be tested according to the pimples. Not more than 0.5, limited to 3
Not more than 0.5, limited to 4
Not allowed||t t||Not allowed
Not more than 0.5, limited to 5 pieces
Not more than 0.5, limited to 6 pieces
Qualified products
Not more than 3.5, limited to 4 pieces
Not more than 4.5, limited to 5 pieces
Not more than 5.0, limited to 5 pieces
Not more than 5.0, limited to 1 piece
Not more than 24.0
Not more than 36.0
Not more than 72. 0
Not more than S6.0
Not more than 1. 0, limited to 5 pieces
Not more than 1.5, limited to 6 pieces
Not more than 2.0, limited to 8 pieces
Not more than 2.0, limited to 10 pieces
Open glaze bubbles are not allowed for first-class products. Qualified products are not allowed to have glaze bubbles on the rim. The glaze pressure length shall not exceed 4.0, the inner edge length of the bottom shall not exceed 10.0, and other glaze defects are not allowed. Bottom foot shrinkage: medium and small types shall not exceed 30.0mm, and extra large types shall not exceed 10.0. The pressure length shall not exceed 10.0, the inner edge length of the bottom shall not exceed 40.0, and other glaze defects shall not exceed 30.0mm2. Bottom foot shrinkage: medium and small types shall not exceed 60.0 mm2, and extra large types shall not exceed 80. 0 mm. The width of the bottom foot shrinkage shall not exceed 1 mm. The pressure on the mouth, ears, and handles of small and medium-sized bottles shall not exceed 2.0 for first-class products, and 4. 0mm
Blister edge
Diameter and
Product specifications
CB/T3532—1995
Continued table 3
Superior products
First-class products
Visible surface is not allowed, non-visible
Surface cracks do not exceed 3.0
Qualified products
Surface cracks do not exceed 6.C
Visible surface is not allowed, non-visible cracks do not exceed 8.0Surface cracks do not exceed 4.0
Visible surface is not allowed, non-visible
Surface cracks do not exceed 5.0
Not allowed
Not allowed
Not allowed
Not allowed
Not allowed
Not allowed| |tt||Visible surfaces are not allowed, and non-visible
surface cracks do not exceed 6.0
Ear handles and eye-catching places inside the pot
and other hidden places where the glaze is damaged are all cracked
not more than 2.0, limited to 1 place
Blister edges are not allowed, and the pierced edges
length does not exceed 10.0
Blister edges are not allowed, and the pierced edges
length does not exceed 20.0
Blister edges are not allowed, and the pierced edges
length does not exceed 30.0
Blister edges are not allowed, and the pierced edges
length does not exceed 40.0
Outer edges are not allowed, and the inner edges do not
exceed 20% of the bottom diameter, and the width
does not exceed 1. 5
Negative cracks shall not exceed 10.0
Negative cracks shall not exceed 12.0
All glaze shall be cracked (not transparent). Medium and small sizes shall not exceed 3.0, and extra large sizes shall not exceed 5.0. All cracks in hidden places such as ears, handles, and punctures inside the pot shall not exceed 2.0. Limited to 2 places
Not larger than 1.0, length shall not exceed
Not larger than 1.0. Length shall not exceed
Not larger than 1.0. Length shall not exceed
Not larger than 1.0. Length shall not exceed
More than 100. 0
The outer edge shall not exceed
60% of the bottom diameter, and the inner edge shall not exceed
80% of the bottom diameter
1. The sticky residue needs to be blunted.
2. Fish trays are calculated based on the long diameter of the bottom foot.
The sticky foot shall not exceed
5% of the bottom diameter, and the depth shall not exceed
The sticky foot shall not exceed
20% of the bottom diameter, and the depth shall not exceed
1. Fish trays are calculated based on the long diameter of the bottom foot.
2. Other sticky cancers are not allowed.
3. The bottom must be polished
Product Specifications
GB/T 3532-
—1995
Continued Table 3
Superior products
Not allowed
Visible face not allowed, non-visible
face not more than 10.0
Visible face not allowed, non-visible
face not more than 15.0
Visible face not allowed, non-visible
face not more than 20.0
Visible face not allowed, non-visible
face not more than 25.0
First-class products
Edge not allowed, other parts
not more than 3.0
Qualified products
Edge not allowed, other parts
not more than 10. 0
Not allowed on the edge, other parts
not more than 201.0
Not allowed on the edge, other parts
not more than 30.0
Not allowed on the edge, other parts
not more than 49.0
Not more than 15.0 (of which the edge
not more than 2.0)
Not more than 20.0 (of which the edge
not more than 2.0)
Not more than 25.0 (of which the edge
not more than 3.0)||tt ||Not more than 30.0 (of which the edge of the mouth
shall not exceed 3.0)
Not more than 40.0 (of which the edge of the mouth
shall not exceed 5.0)
Not more than 60.0 (of which the edge of the mouth
shall not exceed 5.0)
Not more than 80. Of which the edge of the mouth
shall not exceed 7.0)
Not more than 1001.0 (of which the edge of the mouth
shall not exceed 7.0
The depth of mud shortage for superior and first-class products shall not exceed 0.5mm, and the depth of mud shortage for qualified products shall not exceed 1.0 mm
Broken edges and broken lines are not allowed, broken
gold is not allowed. Blue gold is not obvious. The color difference of the line edge is uneven
and the defect is not obvious
. It is limited to 4.0. The break does not exceed 2.0 (the width
gold edge break is not allowed),
blue gold is not obvious. The color difference of the line edge is not hooked and the defect is unclear
. It is limited to 7.0. 2 places
or no more than 10.0 limited to 1
break no more than 4.0 limited to 5
places, blue gold is not too serious.
line edge unevenness and incompleteness are not
too serious
no more than 25% of the screen
1. One more place for each level of full flower; 2. Thin film marks are not obvious for superior products, not obvious for first-class products, and not obvious for qualified products: 3. Local light gold is treated as screen defects, 4.The heads, hands, feet of figures, birds and animals, and the text symbols in the decorations are not allowed to be defective for superior and first-class products, and the defect of qualified products is not obvious
Axis surface is rubbed
Smoked,
Glaze is thin,
Mouth and ears
Crooked, joints
Mud color difference,
Color is not correct
Mud glaze strands,
Wave pattern,
Head traces
Note: Defect conversion regulations in the table:
Product specifications
GB/T 3532-1995
Continued Table 3
Superior products
Not allowed
Not allowed
Not allowed
Obvious surfaces are not allowed, non-obvious
Surfaces are very inconspicuous
Very inconspicuous
Obvious surfaces are very inconspicuous, non-obvious surfaces are not obvious
First-class products
Not allowed
Not obvious
Not allowed
Not obvious
Not obvious
Not obvious
Qualified products
Not serious
Not serious
Not serious
Not serious
①Except as clearly specified, the allowable range of defects specified in this table are The defects on the visible surface and non-visible surface can be increased by 50% according to the size specified on the visible surface, the pore size remains unchanged according to the regulations, and the number is converted into one by two; ② In case of defects with a diameter less than 50% of the specified range, and the number is slightly more than the specified, two can be converted into one, but the absolute number of the increase shall not exceed 50% of the total number specified in the original grade (if the original total number is an odd number, the total number can be increased by 1, and then halved to become an even number) ③ For those where the number and number are not specified, they can be calculated by adding the size; ④ For first-class products and qualified products, any minor defects with a diameter not exceeding 0.3mm, a length not exceeding 0.5mm, an area not exceeding 1mm, and a clear color, as well as other inconspicuous defects, shall not be counted as defects; ③ There shall be no more than 2 defects within 10mm2; ③ Defects not included in this standard can be treated as similar defects. 6 Test methods
6.1 Water absorption determination shall be carried out in accordance with GB3299.
6.2 Thermal stability determination shall be carried out in accordance with GB/T3298. 6.3 The determination of lead and cadmium dissolution shall be carried out in accordance with GB3534. 6.4 The determination of deformation shall be carried out in accordance with GB3300.
The determination of gloss shall be carried out in accordance with GB3295.
The determination of whiteness and color difference shall be carried out in accordance with QB/T1503. 6.6
6.7 The determination of product specification error and defect size shall be carried out in accordance with GB3301. 302
Inspection rules
GB/T35321995
Product inspection is divided into acceptance inspection and type inspection, and the number of unqualified products per hundred units (piece method) is used for inspection. 7.1 Acceptance inspection
Each product shall be fully inspected by the inspection department of the manufacturer and shall not be shipped out of the factory until it passes the acceptance inspection. When leaving the factory, it must be accompanied by documents proving that the product quality is qualified.
7.1.1 The delivery inspection items are the contents specified in 5.6, 5.7, 5.8.5.9, 5.10, 5.11, and 5.12. 7.1.2 The delivery inspection shall be carried out in accordance with the provisions of GB2828. The classification of unqualified items, qualified quality level, inspection level and sampling plan of each inspection item are shown in Table 4. Normal inspection-sampling qualified judgment shall be carried out in accordance with Table 5. Table 4
Inspection items
Batch range
9～15
91~150
151～280
281~500
501～1 200
1 2 013 200
3 201 ~ 10 000
10 001 ~-35 000
Unqualified classification
Qualified quality level AQL
Table 5 Sampling for normal inspection
General inspection level AQL= 0. 25
Sample size
Sample size
Inspection level IL
General inspection level I
Special inspection level S-3
General inspection level ■
Sampling plan
Single sampling (starting from the normal inspection single sampling, according to the
transfer rule)
Special inspection level S-3
Sample size
Batch range
35 001~150 000
150 001-500 000
≥500001
Sample size
7.1.3 Formation of product batches
AQI. -- 2. 5
GB/T3532—1995
Continued Table 5
General Inspection Level
Sample Size
Special Inspection Level S-3
AQL - 4. 0
Sample Sizewww.bzxz.net
The inspected products can be batched according to single piece, set, grade, pattern, coloring method, and can be subdivided if necessary. 7.1.4 Sampling
The sampling of samples is carried out randomly. The sample size of single product shall be drawn according to the provisions of Table 4. For boxed matching products, the number of boxes shall be drawn according to Table 6 of this standard, and then the sample size of the batch of products shall be drawn from the boxes according to the provisions of Table 4 of this standard (the number of samples drawn from each box shall be roughly equal). Table 6
Batch size (box)
Sample size (box)
26~150
151～1 20
1201~35000
≥35001
7.1.5 If any one of the items in the inspection fails, the product shall be judged as unqualified. The batch of products can be submitted for inspection again only after rework by the delivery party
7.2 Type inspection
7.2.1 The type inspection items are all the contents of the technical requirements of this standard. Among them, thermal stability, lead and cadmium dissolution are carried out once a quarter, and other items are carried out once every six months. Type inspection must also be carried out in the following circumstances: a.
When the raw materials of the product are changed;
When the change of the production process method may affect the product performance; when the production is resumed after stopping production for more than 6 months;
When an accident occurs in the production process; the result of the delivery inspection is significantly different from the result of the previous type inspection; when the superior quality supervision agency puts forward the type inspection requirement. f.
7.2.2 The samples for type inspection shall be drawn from a batch or several batches manufactured within the specified period and qualified after batch inspection. The method of sampling shall ensure that the obtained samples can represent the manufacturing technology level of this period. It is best to draw sample units from different times of the specified period to form the samples for type inspection. 7.2.3 Type inspection shall be carried out in accordance with the provisions of GB2829. The classification of unqualified products, unqualified quality level, discrimination level, number of unqualified judgments and sampling plan for each inspection item are shown in Table 7.
Inspection items
5. 9,5. 10,
5.11.5, 12
Lead and cadmium dissolution
Water absorption
Thermal stability
Unqualified
GB/T3532—1995
Unqualified quality level
Discrimination level
Sampling plan
Inspected items. If one item is unqualified, the product type inspection is judged to be unqualified. 7.2.4
8 Marking, packaging, transportation, storage
8.1 Packaging should comply with the provisions of GB11423
8.2 Marking, transportation, storage should comply with the provisions of GB3302. Additional remarks:
This standard was proposed by the General Administration of Light Industry of the People's Republic of China. Sample size
This standard is under the technical supervision of the National Ceramic Standard Promotion Center. This standard was drafted by the Ceramic Research Institute of the Ministry of Light Industry, Jiangsu Ceramic Research Institute, Jiangxi Ceramic Industry Company, Tangshan Ceramic Industry Company, and Shandong Ceramic Industry Company.
The main drafters of this standard are: Li Miaoliang, Shen Wei, Li Feng, Huang Cai'e, Huang Xiansheng, Jiang Guohua, and Guo Changsheng. 3052. Marking, transportation and storage should comply with GB3302 regulations. Additional notes:
This standard is proposed by the Light Industry Federation of the People's Republic of China. Sample size
This standard is technically managed by the National Ceramic Standardization Center. This standard is drafted by the Ceramics Research Institute of the Ministry of Light Industry, Jiangsu Ceramics Research Institute, Jiangxi Ceramics Industry Company, Tangshan Ceramics Industry Company, and Shandong Ceramics Industry Company.
The main drafters of this standard: Li Miaoliang, Shen Wei, Li Feng, Huang Cai'e, Huang Xiansheng, Jiang Guohua, Guo Changsheng. 3052. Marking, transportation and storage should comply with GB3302 regulations. Additional notes:
This standard is proposed by the Light Industry Federation of the People's Republic of China. Sample size
This standard is technically managed by the National Ceramic Standardization Center. This standard is drafted by the Ceramics Research Institute of the Ministry of Light Industry, Jiangsu Ceramics Research Institute, Jiangxi Ceramics Industry Company, Tangshan Ceramics Industry Company, and Shandong Ceramics Industry Company.
The main drafters of this standard: Li Miaoliang, Shen Wei, Li Feng, Huang Cai'e, Huang Xiansheng, Jiang Guohua, Guo Changsheng. 3052. Marking, transportation and storage should comply with GB3302 regulations. Additional notes:
This standard is proposed by the Light Industry Federation of the People's Republic of China. Sample size
This standard is technically managed by the National Ceramic Standardization Center. This standard is drafted by the Ceramics Research Institute of the Ministry of Light Industry, Jiangsu Ceramics Research Institute, Jiangxi Ceramics Industry Company, Tangshan Ceramics Industry Company, and Shandong Ceramics Industry Company.
The main drafters of this standard: Li Miaoliang, Shen Wei, Li Feng, Huang Cai'e, Huang Xiansheng, Jiang Guohua, Guo Changsheng. 3052. Marking, transportation and storage should comply with GB3302 regulations. Additional notes:
This standard is proposed by the Light Industry Federation of the People's Republic of China. Sample size
This standard is technically managed by the National Ceramic Standardization Center. This standard is drafted by the Ceramics Research Institute of the Ministry of Light Industry, Jiangsu Ceramics Research Institute, Jiangxi Ceramics Industry Company, Tangshan Ceramics Industry Company, and Shandong Ceramics Industry Company.
The main drafters of this standard: Li Miaoliang, Shen Wei, Li Feng, Huang Cai'e, Huang Xiansheng, Jiang Guohua, Guo Changsheng. 3052. Marking, transportation and storage should comply with the regulations of GB3302. Additional notes:
This standard is proposed by the Light Industry Federation of the People's Republic of China. Sample size
This standard is technically managed by the National Ceramic Standardization Center. This standard is drafted by the Ceramics Research Institute of the Ministry of Light Industry, Jiangsu Ceramics Research Institute, Jiangxi Ceramics Industry Company, Tangshan Ceramics Industry Company, and Shandong Ceramics Industry Company.
The main drafters of this standard: Li Miaoliang, Shen Wei, Li Feng, Huang Cai'e, Huang Xiansheng, Jiang Guohua, Guo Changsheng. 3052. Marking, transportation and storage should comply with GB3302 regulations. Additional notes:
This standard is proposed by the Light Industry Federation of the People's Republic of China. Sample size
This standard is technically managed by the National Ceramic Standardization Center. This standard is drafted by the Ceramics Research Institute of the Ministry of Light Industry, Jiangsu Ceramics Research Institute, Jiangxi Ceramics Industry Company, Tangshan Ceramics Industry Company, and Shandong Ceramics Industry Company.
The main drafters of this standard: Li Miaoliang, Shen Wei, Li Feng, Huang Cai'e, Huang Xiansheng, Jiang Guohua, Guo Changsheng. 3057 The product specification error and defect size measurement shall be carried out in accordance with GB3301. 302
Inspection rules
GB/T35321995
Product inspection is divided into acceptance inspection and type inspection, and the number of unqualified products per hundred units (piece method) is used for inspection. 7.1 Acceptance inspection
Each product must be fully inspected by the inspection department of the manufacturer and can only be shipped after passing the acceptance inspection. When leaving the factory, it must be accompanied by documents proving that the product quality is qualified.
7.1.1 The acceptance inspection items are the contents specified in 5.6, 5.7, 5.8.5.9, 5.10, 5.11, and 5.12. 7.1.2 Acceptance inspection shall be carried out in accordance with the provisions of GB2828. The classification of unqualified items, qualified quality level, inspection level and sampling plan of each inspection item are shown in Table 4. Normal inspection-sampling qualified judgment shall be carried out in accordance with Table 5. Table 4
Inspection items
Batch range
9～15
91~150
151～280
281~500
501～1 200
1 2 013 200
3 201 ~ 10 000
10 001 ~-35 000
Unqualified classification
Qualified quality level AQL
Table 5 Sampling for normal inspection
General inspection level AQL= 0. 25
Sample size
Sample size
Inspection level IL
General inspection level I
Special inspection level S-3
General inspection level ■
Sampling plan
Single sampling (starting from the normal inspection single sampling, according to the
transfer rule)
Special inspection level S-3
Sample size
Batch range
35 001~150 000
150 001-500 000
≥500001
Sample size
7.1.3 Formation of product batches
AQI. -- 2. 5
GB/T3532—1995
Continued Table 5
General Inspection Level
Sample Size
Special Inspection Level S-3
AQL - 4. 0
Sample Size
The inspected products can be batched according to single piece, set, grade, pattern, coloring method, and can be subdivided if necessary. 7.1.4 Sampling
The sampling of samples is carried out randomly. The sample size of single product shall be drawn according to the provisions of Table 4. For boxed matching products, the number of boxes shall be drawn according to Table 6 of this standard, and then the sample size of the batch of products shall be drawn from the boxes according to the provisions of Table 4 of this standard (the number of samples drawn from each box shall be roughly equal). Table 6
Batch size (box)
Sample size (box)
26~150
151～1 20
1201~35000
≥35001
7.1.5 If any one of the items in the inspection fails, the product shall be judged as unqualified. The batch of products can be submitted for inspection again only after rework by the delivery party
7.2 Type inspection
7.2.1 The type inspection items are all the contents of the technical requirements of this standard. Among them, thermal stability, lead and cadmium dissolution are carried out once a quarter, and other items are carried out once every six months. Type inspection must also be carried out in the following circumstances: a.
When the raw materials of the product are changed;
When the change of the production process method may affect the product performance; when the production is resumed after stopping production for more than 6 months;
When an accident occurs in the production process; the result of the delivery inspection is significantly different from the result of the previous type inspection; when the superior quality supervision agency puts forward the type inspection requirement. f.
7.2.2 The samples for type inspection shall be drawn from a batch or several batches manufactured within the specified period and qualified after batch inspection. The method of sampling shall ensure that the obtained samples can represent the manufacturing technology level of this period. It is best to draw sample units from different times of the specified period to form the samples for type inspection. 7.2.3 Type inspection shall be carried out in accordance with the provisions of GB2829. The classification of unqualified products, unqualified quality level, discrimination level, number of unqualified judgments and sampling plan for each inspection item are shown in Table 7.
Inspection items
5. 9,5. 10,
5.11.5, 12
Lead and cadmium dissolution
Water absorption
Thermal stability
Unqualified
GB/T3532—1995
Unqualified quality level
Discrimination level
Sampling plan
Inspected items. If one item is unqualified, the product type inspection is judged to be unqualified. 7.2.4
8 Marking, packaging, transportation, storage
8.1 Packaging should comply with the provisions of GB11423
8.2 Marking, transportation, storage should comply with the provisions of GB3302. Additional remarks:
This standard was proposed by the General Administration of Light Industry of the People's Republic of China. Sample size
This standard is under the technical supervision of the National Ceramic Standard Promotion Center. This standard was drafted by the Ceramic Research Institute of the Ministry of Light Industry, Jiangsu Ceramic Research Institute, Jiangxi Ceramic Industry Company, Tangshan Ceramic Industry Company, and Shandong Ceramic Industry Company.
The main drafters of this standard are: Li Miaoliang, Shen Wei, Li Feng, Huang Cai'e, Huang Xiansheng, Jiang Guohua, and Guo Changsheng. 3057 The product specification error and defect size measurement shall be carried out in accordance with GB3301. 302
Inspection rules
GB/T35321995
Product inspection is divided into acceptance inspection and type inspection, and the number of unqualified products per hundred units (piece method) is used for inspection. 7.1 Acceptance inspection
Each product must be fully inspected by the inspection department of the manufacturer and can only be shipped after passing the acceptance inspection. When leaving the factory, it must be accompanied by documents proving that the product quality is qualified.
7.1.1 The acceptance inspection items are the contents specified in 5.6, 5.7, 5.8.5.9, 5.10, 5.11, and 5.12. 7.1.2 Acceptance inspection shall be carried out in accordance with the provisions of GB2828. The classification of unqualified items, qualified quality level, inspection level and sampling plan of each inspection item are shown in Table 4. Normal inspection-sampling qualified judgment shall be carried out in accordance with Table 5. Table 4
Inspection items
Batch range
9～15
91~150
151～280
281~500
501～1 200
1 2 013 200
3 201 ~ 10 000
10 001 ~-35 000
Unqualified classification
Qualified quality level AQL
Table 5 Sampling for normal inspection
General inspection level AQL= 0. 25
Sample size
Sample size
Inspection level IL
General inspection level I
Special inspection level S-3
General inspection level ■
Sampling plan
Single sampling (starting from the normal inspection single sampling, according to the
transfer rule)
Special inspection level S-3
Sample size
Batch range
35 001~150 000
150 001-500 000
≥500001
Sample size
7.1.3 Formation of product batches
AQI. -- 2. 5
GB/T3532—1995
Continued Table 5
General Inspection Level
Sample Size
Special Inspection Level S-3
AQL - 4. 0
Sample Size
The inspected products can be batched according to single piece, set, grade, pattern, coloring method, and can be subdivided if necessary. 7.1.4 Sampling
The sampling of samples is carried out randomly. The sample size of single product shall be drawn according to the provisions of Table 4. For boxed matching products, the number of boxes shall be drawn according to Table 6 of this standard, and then the sample size of the batch of products shall be drawn from the boxes according to the provisions of Table 4 of this standard (the number of samples drawn from each box shall be roughly equal). Table 6
Batch size (box)
Sample size (box)
26~150
151～1 20
1201~35000
≥35001
7.1.5 If any one of the items in the inspection fails, the product shall be judged as unqualified. The batch of products can be submitted for inspection again only after rework by the delivery party
7.2 Type inspection
7.2.1 The type inspection items are all the contents of the technical requirements of this standard. Among them, thermal stability, lead and cadmium dissolution are carried out once a quarter, and other items are carried out once every six months. Type inspection must also be carried out in the following circumstances: a.
When the raw materials of the product are changed;
When the change of the production process method may affect the product performance; when the production is resumed after stopping production for more than 6 months;
When an accident occurs in the production process; the result of the delivery inspection is significantly different from the result of the previous type inspection; when the superior quality supervision agency puts forward the type inspection requirement. f.
7.2.2 The samples for type inspection shall be drawn from a batch or several batches manufactured within the specified period and qualified after batch inspection. The method of sampling shall ensure that the obtained samples can represent the manufacturing technology level of this period. It is best to draw sample units from different times of the specified period to form the samples for type inspection. 7.2.3 Type inspection shall be carried out in accordance with the provisions of GB2829. The classification of unqualified products, unqualified quality level, discrimination level, number of unqualified judgments and sampling plan for each inspection item are shown in Table 7.
Inspection items
5. 9,5. 10,
5.11.5, 12
Lead and cadmium dissolution
Water absorption
Thermal stability
Unqualified
GB/T3532—1995
Unqualified quality level
Discrimination level
Sampling plan
Inspected items. If one item is unqualified, the product type inspection is judged to be unqualified. 7.2.4
8 Marking, packaging, transportation, storage
8.1 Packaging should comply with the provisions of GB11423
8.2 Marking, transportation, storage should comply with the provisions of GB3302. Additional remarks:
This standard was proposed by the General Administration of Light Industry of the People's Republic of China. Sample size
This standard is under the technical supervision of the National Ceramic Standard Promotion Center. This standard was drafted by the Ceramic Research Institute of the Ministry of Light Industry, Jiangsu Ceramic Research Institute, Jiangxi Ceramic Industry Company, Tangshan Ceramic Industry Company, and Shandong Ceramic Industry Company.
The main drafters of this standard are: Li Miaoliang, Shen Wei, Li Feng, Huang Cai'e, Huang Xiansheng, Jiang Guohua, and Guo Changsheng. 3055 If any one of the items in the inspection fails, the product is judged to be unqualified. The batch of products can be submitted for inspection again only after the delivery party reworks it
7.2 Type inspection
7.2.1 The type inspection items are all the contents of the technical requirements of this standard. Among them, thermal stability, lead and cadmium dissolution are carried out once a quarter, and other items are carried out once every six months. Type inspection must also be carried out in the following circumstances: a.
When the raw materials of the product are changed:
When the change of the production process method may affect the performance of the product; when the production is resumed after stopping production for more than 6 months;
An accident occurs in the production process; The delivery inspection result is significantly different from the last type inspection result; When the superior quality supervision agency puts forward the type inspection requirement. f.
7.2.2 The samples for type inspection should be drawn from a batch or several batches manufactured within the specified period and passed the batch inspection. The sampling method should ensure that the obtained samples can represent the manufacturing technology level of this cycle. It is best to extract sample units from different times of the specified cycle to form the samples for type inspection. 7.2.3 Type inspection shall be carried out in accordance with the provisions of GB2829. The classification of unqualified items, unqualified quality level, discrimination level, number of unqualified judgments and sampling plan of each inspection item are shown in Table 7.
Inspection items
5. 9,5. 10,
5.11.5, 12
Lead and cadmium dissolution
Water absorption
Thermal stability
Unqualified
GB/T3532—1995
Unqualified quality level
Discrimination level
Sampling plan
In each inspection item. If one item is unqualified, the product is judged to be unqualified for type inspection. 7.2.4
8 Marking, packaging, transportation, storage
8.1 Packaging should comply with the provisions of GB11423
8.2 Marking, transportation, storage should comply with the provisions of GB3302. Additional remarks:
This standard is proposed by the General Administration of Light Industry of the People's Republic of China. Sample size
This standard is under the technical jurisdiction of the National Ceramic Standardization Promotion Center. This standard was drafted by the Ceramic Research Institute of the Ministry of Light Industry, the Ceramic Research Institute of Jiangsu Province, the Jiangxi Ceramic Industry Company, the Tangshan Ceramic Industry Company, and the Shandong Ceramic Industry Company.
The main drafters of this standard are: Li Miaoliang, Shen Wei, Li Feng, Huang Cai'e, Huang Xiansheng, Jiang Guohua, and Guo Changsheng. 3055 If any one of the items in the inspection fails, the product is judged to be unqualified. The batch of products can be submitted for inspection again only after the delivery party reworks it
7.2 Type inspection
7.2.1 The type inspection items are all the contents of the technical requirements of this standard. Among them, thermal stability, lead and cadmium dissolution are carried out once a quarter, and other items are carried out once every six months. Type inspection must also be carried out in the following circumstances: a.
When the raw materials of the product are changed:
When the change of the production process method may affect the performance of the product; when the production is resumed after stopping production for more than 6 months;
An accident occurs in the production process; The delivery inspection result is significantly different from the last type inspection result; When the superior quality supervision agency puts forward the type inspection requirement. f.
7.2.2 The samples for type inspection should be drawn from a batch or several batches manufactured within the specified period and passed the batch inspection. The sampling method should ensure that the obtained samples can represent the manufacturing technology level of this cycle. It is best to extract sample units from different times of the specified cycle to form the samples for type inspection. 7.2.3 Type inspection shall be carried out in accordance with the provisions of GB2829. The classification of unqualified items, unqualified quality level, discrimination level, number of unqualified judgments and sampling plan of each inspection item are shown in Table 7.
Inspection items
5. 9,5. 10,
5.11.5, 12
Lead and cadmium dissolution
Water absorption
Thermal stability
Unqualified
GB/T3532—1995
Unqualified quality level
Discrimination level
Sampling plan
In each inspection item. If one item is unqualified, the product is judged to be unqualified for type inspection. 7.2.4
8 Marking, packaging, transportation, storage
8.1 Packaging should comply with the provisions of GB11423
8.2 Marking, transportation, storage should comply with the provisions of GB3302. Additional remarks:
This standard is proposed by the General Administration of Light Industry of the People's Republic of China. Sample size
This standard is under the technical jurisdiction of the National Ceramic Standardization Promotion Center. This standard was drafted by the Ceramic Research Institute of the Ministry of Light Industry, the Ceramic Research Institute of Jiangsu Province, the Jiangxi Ceramic Industry Company, the Tangshan Ceramic Industry Company, and the Shandong Ceramic Industry Company.
The main drafters of this standard are: Li Miaoliang, Shen Wei, Li Feng, Huang Cai'e, Huang Xiansheng, Jiang Guohua, and Guo Changsheng. 305
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