This standard specifies a test method for determining the bulk density of dust - the natural accumulation method. This standard applies to the determination of dust bulk density.
1997GB/T 16913.3-1997 Methods of dust character test--Part 3: Determination of bulk density--Natural bulk method
GB/T 16913.3-1997 Methods of dust character test--Part 3: Determination of bulk density--Natural bulk method was changed to GB/T 16913-2008 Methods of dust character test.