Flexible Air Duct


Determination of crushing strength of a compressed duct

Determination of crushing strength of a compressed duct

A compressed length of 100 mm is cut from a new compressed duct. This test specimen is placed in a s..

Nominal length

Nominal length

The two extremities of the test element shall be extended to receive an end cap for which the fixing..

Sag

Sag

The reference test element shall be placed in a straight line on a smooth, horizontal table surface ..

Bending capability

Bending capability

The test element shall be secured between the formers so that at least 200 mm of the elementprojects..

Determination of crushing strength for an uncompressed duct

Determination of crushing strength for an uncompressed duct

The reference test element shall be fitted with two end caps which are attached to a stationary fixt..

Ductwork - Pressure

Ductwork - Pressure

5.8.1 Positive pressureThe reference test element shall be placed horizontally with each end of the ..

Air leakage

Air leakage

The reference test element shall be placed horizontally with two end caps sealed. The test apparatus..

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