1. 3A, 2016. 3A Sanitary Standards Inc. Available at: www.3-a.org (last accessed February 2016).
2. Principles of Checkweighing – a Guide to the Application and Selection of Checkweighers;Anon,1997
3. Checkweigher takes over control tasks;Anon;Food Process.,2008
4. An overview of sterilization methods for packaging materials used in aseptic packaging systems;Ansari;Trans IChemE,2003
5. Berk O., 2016. Caps and Closure Systems. O.Berk Company. Available at: www.oberk.com/ViewProducts?type=closures (www.oberk.com > scroll down to ‘Caps & Closure Systems’) (last accessed February 2016).