In an experiment, a control is used to establish a baseline to compare the results of the main experiment to. Having a control group rules out any environmental variables, such as temperature and... In an experiment, a control is used to establish a baseline to compare the results of the main experiment to. Having a control group rules out any environmental variables, such as temperature and...
Knives, including small pocket knives, are only allowed in checked bags. Only plastic and round-tip butter knives are allowed as carry-on blades. Most bladed items are allowed in checked baggage, including scissors, razors, swords, axes, box cutters and blade tools, if they are properly wrapped or sheathed.
General free check-in baggage allowance. 1  1 x check-in baggage: L + W + H max. 158 cm (62 inch) and in total max. 23 kg (50 lbs).  Flying Blue Silver-, Gold- and Platinum members and SkyTeam Elite- and Elite Plus-members can bring 2 pieces of check-in baggage of the same dimensions and weight.