6.1 For wood:
6.1.1 In accordance with TAPPI T 257 “Sampling and Preparing Wood for Analysis,” obtain a sample of air-dried
sawdust to pass a 0.40 mm (40 mesh) screen and determine its moisture content according to TAPPI T 264 “Preparation
of Wood for Chemical Analysis.” For each solvent used, at least 4 g are required for determination in duplicate.
6.1.2 From the air-dry sample, weigh to the nearest 5 mg, in a tared extraction thimble, a specimen equivalent
to 2 ± 0.1 g of moisture-free wood.