Chinese National Standard

People's Republic of China national standard GB4814-84

For logs small-end diameter 4-12cm and lengths less than 10.2m

Diameter Measured Inside Bark = DIB
Length of Log in Metres M
DIB Measured Small End cm

Results:

Log Volume in Cubic Metres
For logs small-end diameter 14cm and greater and lengths between 2m and 10m:

Diameter Measured Inside Bark = DIB
Length of Log in Metres M
DIB Measured Small End cm

Results:

Log Volume in Cubic Metres
For logs less than 2m and greater than 10.2m in length:

Diameter Measured Inside Bark = DIB
Length of Log in Metres M
DIB Measured Small End cm

Results:

Log Volume in Cubic Metres
For logs 10.2m in length:

Diameter Measured Inside Bark = DIB
DIB Measured Small End cm

Results:

Log Volume in Cubic Metres


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