GB 449-1984
Replaced
GB/T 1927.20-2021
Active
National standards
GB/T 1927.20-2021 Test methods for physical and mechanical properties of small clear wood specimens—Part 20:Determination of cleavage strength
GB/T 1927.20-2021 Test methods for physical and mechanical properties of small clear wood specimens—Part 20:Determination of cleavage strength
Basic Information
Standard Code:
GB/T 1927.20-2021
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Raw logs and original timber
ICS Name:
\nTimber, logs, and sawn timber
Publish Date:
2021-12-31
Implement Date:
2022-07-01
Publisher:
国家市场监督管理总局、国家标准化管理委员会
Technical Committee:
全国木材标准化技术委员会(SAC/TC 41)
Pages:
7 pages
Scope
本文件描述了测定无疵小试样木材抗劈力的原理、设备、试样、试验步骤、结果计算、试验结果记录和报告。本文件适用于无疵小试样木材的抗劈力测定。
Development Information
Drafting Units:
南京林业大学、安徽农业大学、国际竹藤中心、国家林业和草原局人造板及其制品质量检验检测中心(南京)、厦门明红堂工艺品有限公司、浙江世友木业有限公司、黑龙江省林业科学院、安徽工业大学、东北林业大学
Drafting Persons:
张耀丽、王传贵、梁星宇、江泽慧、费本华、王旋、汪佑宏、张华、张浩、黄灿、窦青青、刘镇波、蒯炳斌、丁丽
Same series standard
GB/T 1927.1-2021 Test methods for physical and mechanical properties of small clear wood specimens—Part 1:Collection of sample tree
GB/T 1927.2-2021 Test methods for physical and mechanical properties of small clear wood specimens—Part 2:Sampling methods and general requirements
GB/T 1927.3-2021 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
GB/T 1927.4-2021 Test methods for physical and mechanical properties of small clear wood specimens—Part 4:Determination of moisture content
GB/T 1927.5-2021 Test methods for physical and mechanical properties of small clear wood specimens—Part 5: Determination of density
GB/T 1927.6-2021 Test methods for physical and mechanical properties of small clear wood specimens—Part 6:Determination of shrinkage
GB/T 1927.7-2021 Test methods for physical and mechanical properties of small clear wood specimens—Part 7:Determination of water absorption
GB/T 1927.8-2021 Test methods for physical and mechanical properties of small clear wood specimens—Part 8: Determination of swelling
GB/T 1927.9-2021 Test methods for physical and mechanical properties of small clear wood specimens—Part 9:Determination of bending strength
GB/T 1927.10-2021 Test methods for physical and mechanical properties of small clear wood specimens—Part 10:Determination of modulus of elasticity in bending
GB/T 1927.12-2021 Test methods for physical and mechanical properties of small clear wood specimens—Part 12:Determination of strength in compression perpendicular to grain
GB/T 1927.17-2021 Test methods for physical and mechanical properties of small clear wood specimens—Part 17:Determination of impact bending strength
GB/T 1927.18-2021 Test methods for physical and mechanical properties of small clear wood specimens—Part 18:Determination of resistance to impact indentation
GB/T 1927.19-2021 Test methods for physical and mechanical properties of small clear wood specimens—Part 19:Determination of static hardness
Replace the following standards
Referenced Standards
Related Standards
GB 4814-1984
Replaced
GB 4814-1984 Log volume table
GB 4815-1984
Replaced
GB 4815-1984 Volume table of Chinese fir tree poles
GB/T 11717-1989
Replaced
GB/T 11717-1989 Pulp logs
GB/T 1930-1991
Replaced
GB/T 1930-1991 Method for determination of the annual rings width and latewood rate of wood
GB/T 15106-1994
Replaced