Home / Standards / GB/T 1927.3-2021 GB/T 1927.3-2021 Active Test methods for physical and mechanical properties of small clear wood specimens—Part 3: Determination of the growth rings width and latewood rate of wood 无疵小试样木材物理力学性质试验方法 第3部分:生长轮宽度和晚材率测定 Standard Type GBT ICS 79.040 CCS B68 Status 现行 Issue Date 2021-12-31 Implementation 2022-07-01 Responsible Dept 国家林草局 Drafting Unit N/A