This standard specifies the allowable values ??for the dissolution of lead and cadmium from ceramic products in contact with food. This standard applies to porcelain, stoneware, glazed and unglazed earthenware products that come into contact with food, but does not include ceramics for the food manufacturing industry, packaging and cooking (which must use more stringent standards), nor does it include glass, glass Ceramic and enamel products. GB 12651-1990 Allowable limits for lead and cadmium dissolution from ceramic products in contact with food GB12651-1990 Standard download and decompression password: www.bzxz.net

National Standard of the People's Republic of China
Lead and cadmium release from ceramic ware in contact with foodGB12651—90|| tt||This standard refers to the international standard ISO6486/2--1981 "Permissible limits for lead and pickaxe dissolution of ceramic products in contact with food". Subject content and scope of application
This standard specifies the allowable values ??for the dissolution of lead and pickaxe from ceramic products that come into contact with food. This standard applies to porcelain, wares, glazed and unglazed earthenware products that come into contact with food, but does not include ceramics for the food manufacturing industry, packaging and cooking (which must use more stringent standards), nor does it include glass, glass Ceramics and porcelain products. 2 Reference standards
GB3534 Method for determination of lead and pickaxe dissolution in ceramics Terminology of daily ceramics
GB5000
3 Definitions
3.1 Ceramics: used with food Contact ceramics such as porcelain, chinaware, glazed and unglazed earthenware. 3.2 Flat products: Ceramics whose depth from the lowest internal plane of the product to the horizontal plane of the mouth edge is less than 25 mm. 3.3 Hollow products: Ceramic products whose depth from the lowest internal plane of the product to the horizontal plane of the mouth edge is greater than or equal to 25 mm. The size of hollow products, according to its capacity, is specified as follows: a. Large hollow products: capacity greater than or equal to 1.1L. Small hollow products: capacity less than 1.1L. | |tt | /L
Types of ceramics
Flat products
Small hollow products
Large hollow products
State Bureau of Technical Supervision approved lead on December 28, 1990| |tt||7.0
5.0bZxz.net
2.5
Ra
0.50
0.50
0. 25
1991- 10-01 Implementation
Additional Notes:
GB12651-90
This standard was proposed by the Ministry of Light Industry of the People's Republic of China and is under the jurisdiction of the National Daily Ceramics Standardization Center. This standard is drafted by the Ceramics Research Institute of the Ministry of Light Industry. The main drafter of this standard is Li Miaoliang.
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