Test tube Ø50x300 mm, 400 ml
https://www.velp.com/en-ww/test-tube-50x300mm-400ml.aspx Accessories > Test tube Ø50x300 mm, 400 ml Test tube Ø50x300 mm, 400 ml 400 ml test tubes designed for Kjeldahl analysis, ideal for handling larger liquid volumes with low nitrogen content. These tubes offer increased capacity while maintaining the same 42 mm upper diameter, ensuring compatibility with standard digestion and distillation systems. Related searches to: kjeldahl standard