In combination with the module Stocks, you can use the module Orders for purposes of timely ordering the correct quantity of articles (chemicals and non-chemicals).

With this module, you have the possibility to generate order advices automatically. Then you have the possibility to alter and to add to these.
Besides this, you can prepare order forms and warning lists of the items to be ordered. 

With the module Orders, you can answer i.a. the following questions:

• How much of each article (substance) must we order this period?
• From which suppliers can we buy these articles?
• Which orders have not yet been delivered by a particular supplier?