T/CAS 422-2020 Active Group standards

T/CAS 422-2020 The rank and appraisal of Baofeng Ru ceramic

Publish Date: 2020-06-03 Implement Date: 2020-06-03 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CAS 422-2020

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Decorative arts and crafts

ICS Name: Ceramic products

Publish Date: 2020-06-03

Implement Date: 2020-06-03

Scope

Scope: This standard specifies the terms and definitions, classification, grading, appraisal, evaluation, certification authorities, and certificates of Baofeng Ru ware. This standard applies to the appraisal and evaluation of Baofeng Ru ware. Main technical content: 1. Scope: This standard specifies the terms and definitions, classification, grading, appraisal, evaluation, certification authorities, and certificates of Baofeng Ru ware. This standard applies to the appraisal and evaluation of Baofeng Ru ware. 2. Normative references: The following documents are essential for the application of this document. For dated referenced documents, only the version dated is applicable to this document. For undated referenced documents, the latest version (including all amendment sheets) is applicable to this document. GB/T 3298 - Method for Determining the Thermal Shock Resistance of Daily Ceramics GB/T 3299 - Method for Determining the Water Absorption of Daily Ceramics GB 4806.4-2016 - National Food Safety Standard - Ceramic Products GB 31604.24-2016 - National Food Safety Standard - Food Contact Materials and Products - Determination of Cadmium Migration GB 31604.34-2016 - National Food Safety Standard - Food Contact Materials and Products - Determination of Lead and Migration 3. Terms and definitions: The following terms and definitions are applicable to this document. 3.1 Baofeng Ru ware: Modern ceramic products made from clay, quartz, feldspar, agate, etc. in the current administrative area of Baofeng County, Henan Province and the surrounding areas of Qingliang Temple Ru Kiln Site, which are fired twice to produce glazed products with a sky-blue color and a jade-like texture. 3.2 Twice firing: A firing process that first involves low-temperature firing at 800°C to 900°C, followed by high-temperature reduction atmosphere firing at around 1200°C. Note: A reduction atmosphere refers to a situation where fuel is not completely burned, resulting in a high concentration of