ICS79.040CCS B 68中华人民共和国国家标催GB/T1927.4-2021代替GB/T1931一2009无疵小试样木材物理力学性质试验方法第4部分:含水率测定Test methods for physical and mechanical properties of small clear woodspecimens-Part 4:Determination of moisture content(ISO 13061-1:2014,Physical and mechanical properties of wood-Test methods for small clear wood specimens-Part 1:Determination ofmoisture content for physical and mechanical tests,MOD)2021-12-31发布2022-07-01实施国家市场监督管理总局国家标准化管理委员会发布