Fig. 9
From: Tannin-caprolactam and Tannin-PEG formulations as outdoor wood preservatives: weathering properties
Principal component analysis of the five spectra
Fig. 9 | Annals of Forest Science
From: Tannin-caprolactam and Tannin-PEG formulations as outdoor wood preservatives: weathering properties
Principal component analysis of the five spectra
Annals of Forest Science