GB/T 11917-1989
Replaced
GB/T 1930-2009
Abolished
National standards
GB/T 1930-2009 Method for determination of the annual rings width and latewood rate of wood
GB/T 1930-2009 Method for determination of the annual rings width and latewood rate of wood
Basic Information
Standard Code:
GB/T 1930-2009
Standard Type:
National standards
Standard Status:
Abolished
is_force_gb:
no
CCS Name:
Forestry
ICS Name:
Wood processing technology
Publish Date:
2009-02-23
Implement Date:
2009-08-01
Pages:
8 pages
Scope
This standard specifies the test equipment, samples, test procedures, and result calculations for determining the width of wood annual rings and the percentage of latewood in wood.
This standard is applicable to determining the average width of all intact annual rings on the cross-section of wood, as well as the percentage of latewood in all intact annual rings of wood where the distinction between earlywood and latewood is clear.
Development Information
Replace the following standards
Superseded by the following standards
Referenced Standards
Related Standards
GB/T 12471-1990
Replaced
GB/T 12471-1990 Limits and fits for products of wood and wooden materials
GB/T 1927-1991
Replaced
GB/T 1927-1991 Method of sample tree collection for physical and mechanical tests of wood
GB/T 1929-1991
Replaced
GB/T 1929-1991 Method of sample logs sawing and test specimens selection for physical and mechanical tests of wood
GB 14192-1993
Replaced
GB 14192-1993 Safety code of practice for logging operations
GB/T 17666-1999
Active