7 C.F.R. § 201.47b
Working samples.
Cite as 7 C.F.R. § 201.47b (2026)
The purity working sample is the sample on which the purity analysis is made. The noxious-weed seed working sample is the sample on which the noxious-weed seed examination is made. [20 FR 7930, Oct. 21, 1955]