This document stipulates the terms and definitions, evaluation index system, evaluation method and grade classification for the quality and enterprise standard level evaluation of alumina ceramic sheets for faucet valve cores. This document is applicable to the quality and enterprise standard level evaluation of alumina ceramic sheets (alumina mass fraction 95%~97%) used in faucet valve cores. Relevant agencies can refer to this document when carrying out quality grading and corporate standard level assessment, "leader" evaluation and related certifications. Enterprises can also refer to this document when formulating corporate standards.
T/CSTE 0131-2022 history
2022T/CSTE 0131-2022 Assessment requirements for quality grading and forerunner — Aluminum oxide ceramic chip for nozzle spool
2021T/CSTE 0131-2021 Assessment requirements for forerunner standard - Wind cables