Weighing boat parchment paper, Kjeldahl 609, nitrogen-free

Weighing boat parchment paper, Kjeldahl 609, nitrogen-free
Ideal for weighing and transporting all types of sample. Especially for determination of nitrogen according to Kjeldahl (e.g. determination of total protein content in foodstuff). Made of nitrogen-free parchment paper. Can be dropped into the Kjeldahl flask and be dissolved together with the sample.