Fig. 2From: Long-term variability in sugarcane bagasse feedstock compositional methods: sources and magnitude of analytical variabilityControl charts of compositional data for the long-term extractives-free dataset (bulk-extracted NIST RM 8491 sugarcane bagasse composition) plotted chronologically. Samples in this set were analyzed along with process intermediate samples. The central green line denotes the average value, while the dashed red lines show two times the standard deviation and solid red lines show three times the standard deviationBack to article page