GB 5001-1985 Classification of daily-use ceramics

This standard applies to daily-use ceramic products of various materials. GB 5001-1985 Classification of daily-use ceramics GB5001-1985 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Classification of domestic ceramics
Classification of domestic ceramics This standard applies to domestic ceramic products of various materials. Domestic ceramics are divided into pottery and porcelain according to their body characteristics. They should comply with the provisions of Table 1. Table 1
Water absorption, %
Light transmittance
Body characteristics
Knocking sound
2 Pottery and porcelain are divided into several types according to their characteristics. Pottery
Generally greater than 3
Opaque
Not vitrified or poorly vitrified,
structure not dense, rough cross section
UDC 666.3 :642
GB 5001--85
Generally not greater than 3
High degree of vitrification, dense and
fine structure, stone-like or shell-like cross section
2.1 Pottery is divided into coarse pottery, ordinary pottery and fine pottery according to its characteristics. They should meet the requirements of Table 2. Table 2
Coarse pottery
Water absorption is generally greater than 15%, unglazed, rough workmanship
Ordinary pottery
Water absorption is generally not greater than 12%, coarse grains in the cross section, large pores, wheat flour glazing, not finely made
Fine pottery
Water absorption is generally not greater than 15%, fine grains in the cross section, small pores, uniform structure, glazed or unglazed, finely made
Porcelain is divided into 柘 porcelain,
ordinary porcelain and fine porcelain according to its characteristics. They should meet the requirements of Table 3. Table 3
Shrimp porcelain
Water absorption is generally not more than 3%,
Poor light transmittance, usually thick body,
Star color, stone-like cross section. Production
More fine
National Bureau of Standards 1985-03-11
Ordinary porcelain
Water absorption is generally not more than 1%,
Some light transmittance, stone-like or shell-like cross section. Production
Fine porcelain
Water absorption is generally not more than 0.5%,www.bzxz.net
Good light transmittance, delicate cross section,
Shell-like. Finely crafted
1985-12-01 implementation
GB5001-85
Additional notes:
This standard was proposed by the Ministry of Light Industry of the People's Republic of China and is under the jurisdiction of the Ceramic Industry Science Research Institute of the Ministry of Light Industry. This standard was drafted by the Northwest University of Light Industry. The main drafters of this standard were Zhou Daosen and Zhang Xiuying. 107
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