Home / Standards / GB/T 1776-2025 GB/T 1776-2025 Active Superfine platinum powder 超细铂粉 Standard Type GBT ICS 77.150.99 CCS H68 Status 现行 Issue Date 2025-08-29 Implementation 2026-03-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A