• 7.1 Geometrical properties

• 7.1.1 Lenght

• 7.1.2 Width

• 7.1.3 Thickness

• 7.1.4 Depth of corrugation

• 7.1.5 Pitch of corrugation

• 7.1.6 Squareness

• 7.2 Mechanical Properties

• 7.2.1 Bending under downward load

• 7.2.2 Impact strength

• 7.2.3 Tearing of the sheet

• 7.3 Physical properties

• 7.3.1 Impermeability to water

• 7.3.2 Proportion of the product

• 7.3.3 Mass

• 7.3.4 Homogeneity of the product

• 7.3.5 Water absorption

• 7.4 Durability

• 7.4.1 Frost resistance

• 7.4.2 Dimensional variation as a function of temperature

• 7.4.3 Resistance to UV radiation

• 7.5 Fire performance

• 7.5.1 Fire Resistance

All the above listed tests were conducted at the following laboratories:

• TSE Chemistry and Materials Laboratory, Ankara

• Building Materials Testing Laboratory, Dept. of Civil Eng., METU, Ankara

• General Directorate of Building Materials, Ministry of Public Works and Settlement, Ankara

• Materials Laboratory, Dept. of Civil Eng., ITU, Istanbul

• Warrington Research Laboratory (UK)

• United States Testing Co. (USA)

• Yarsley Research Center (UK)

• CSTB (FR)

• Institule of Research PAVUS (Czheque Rep.)

• AVIS ITB (Poland)