10. _Holdefleis_:
34.632 grams copper sulfate in one liter of water; 125 grams
potassium hydroxid, equivalent to 89.2 grams sodium hydroxid; 173
grams potassium-sodium tartrate. Fill to one liter.
Principles and practice of agricultural analysis. Volume 3 (of 3), Agricultural products · 第 39 / 164 题