Bredemann method
The Bredemann method is a method for determining the fiber content of fiber leaves or other fiber plants . The procedure was worked out by Gustav Bredemann in 1922. In order to determine the percentage by mass of the fiber of the stem weight , the examined stems and the pure fibers obtained by chemical digestion are weighed and then calculated as follows: mass of fibers / total stem mass × 100. It includes the pre-digestion (cooking in 0.4% Soda solution), calendering (squeezing with metal rollers), the main digestion (boiling in 2% sodium hydroxide solution ), spraying out with water on frame sieves and thorough drying. This process was used for research purposes both at home and abroad. Due to the almost perfect accuracy, the method is still used recently.
Individual evidence
- ↑ G. Bredemann: The great nettle - research on their cultivation for fiber production; Akademie-Verlag Berlin, 1959; P. 21ff
- ↑ Archived copy ( Memento of the original from March 4, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
