AS 2427-1983

1 - AS 2427-1983 SMOKE/HEAT RELEASE VENTS
4 - PREFACE
4 - CONTENTS
5 - SECTION 1. SCOPE AND GENERAL
5 - 1.1 SCOPE.
5 - 1.2 APPLICATION.
5 - 1.3 REFERENCED DOCUMENTS.
5 - 1.4 DEFINITIONS.
5 - 1.4.1 Automatic smoke/heat release vent
5 - 1.4.2 Dual-purpose vent
5 - 1.4.3 Vent area
5 - 1.4.4 Effective aerodynamic area
5 - 1.4.5 Discharge coefficient
5 - 1.4.6 Rain leakage wind velocity (vr )
5 - 1.4.7 Maximum wind velocity for operation (vo )
5 - 1.5 MARKING.
7 - SECTION 2. MATERIALS OF CONSTRUCTION
7 - 2.1 RESISTANCE TO CORROSION.
7 - 2.2 METALS FOR VENTS.
7 - 2.3 PIVOTS AND BUSHES.
7 - 2.3.1 Pivots.
7 - 2.3.2 Bushes.
7 - 2.4 SPRINGS.
8 - SECTION 3. DESIGN AND MANUFACTURING REQUIREMENTS
8 - 3.1 MODES OF OPERATION.
8 - 3.1.1 Automatic operation.
8 - 3.1.2 Remote manual operation.
8 - 3.2 SIZE AND SHAPE.
8 - 3.3 PROTECTION OF PIVOTS AND BUSHES.
8 - 3.4 FINISH.
9 - SECTION 4. PERFORMANCE REQUIREMENTST
9 - 4.1 RESISTANCE TO LEAKAGE DURING RAIN.
9 - 4.2 OPERATION UNDER WIND LOADING.
9 - 4.3 OPERATION UNDER HEAT.
9 - 4.4. OPERATION UNDER CONTACT WITH FLAME.
9 - 4.5 EFFECTIVE AERODYNAMIC AREA.
9 - 4.6 OPERATION UNDER SNOW LOADING.
10 - SECTION 5. DETERMINATION OF COMPLIANCE ON THE BASIS OF PERFORMANCE
10 - 5.1 PERFORMANCE TESTING.
10 - 5.2 TEST SPECIMENS.
10 - APPENDIX A - INFORMATION TO BE SUPPLIED WITH ENQUIRY OR ORDER

Specifies construction and performance details for vents intended to be fitted in the roof of a building and to open automatically on the outbreak of fire, to allow the escape of smoke and hot gases.

This standard specifies requirements for vents that are intended to be mounted in roofs of buildings to release the products of combustion in the event of fire.NOTE: Guidance on the information that should accompany an enquiry or order is given in Appendix A.

Draft Amendment 1 see DR 03391 CP