Requirements for hand Luggage are determined by airline and airport, so be sure to ask them for your event before the flight. But there are common rules and norms.

1. The size of hand Luggage.
It is due to the size of overhead bins on the plane. Check on the airline's website allowed length, width and height of the bag.

2. Weight and number of seats. This is usually not more than 5 pounds and one seat (i.e. one bag), but the maximum weight also depends on the carrier and class of ticket. In first and business class, as a rule, there are two locations for baggage and more acceptable weight.

For control at the airport there are scales and special shape boxes to check the size of the bag.

3. Liquids.
All liquids must be in bottles or cans of not more than 100 ml each. Thus, the total volume should not exceed 1 liter. The jars should be Packed in a transparent bag. At most airports, these packages are issued. Keep in mind that under the concept of "fluid" are also creams, gels, toothpaste, cosmetics (lipstick, mascara), oil.
The stores sell convenience kits of capacities 100 ml, especially for travel.
An exception is made for baby food and medicines (better to take help from a doctor about the necessity of the medication).

4. Sharp and sharps. Knives, manicure accessories must not be carried in the cabin.

5. Hairspray and nail varnish fall under the definition of "flammable and toxic substances" and are not permitted to be carried in hand Luggage.

6. Products.
In some countries it is forbidden to export certain products, such as meat or dairy. Also note that yogurt, eggs and cheese fall under the definition of "liquids", and are subject to the same limitations, i.e. not more than 100 ml. it Is very sad when at the airport is taken away to the French or Swiss cheese, designed as a gift to friends.

7. Purchases in duty-free.
They are not subject to any restrictions applicable to hand Luggage, if the purchases are Packed in the closed package. The cheque better not to throw to arrival. But, if you have a flight with connections, when you transplant anything bought in duty-free, automatically becomes hand Luggage.

8. In addition to one piece of hand baggage allowances: hand-bags, briefcase, laptop in a special bag, one piece of outerwear, one sealed bag with goods from duty-free.

9. Common sense suggests that the trafficking of arms and narcotic substances is still prohibited.

The rigor of the inspection of hand Luggage depends on the airport and from the event. But, nevertheless, it is better not to risk and to follow the established rules.