Preface
Foreword
Standard
1 Scope
2 Types
3 Physical requirements
3.1 Materials
3.2 Insect protection
3.3 Fastener components
3.4 Basic design
3.5 Flanges
3.6 Foundation ventilators
4 Performance requirements
4.1 Wind resistance
4.2 Rain resistance
4.3 Corrosion resistance
5 Test methods
5.1 General
5.2 Wind resistance test
5.3 Rain resistance test
5.4 Corrosion resistance test
6 Net Ventilating area
7 Marking
Appendix A - Installation of Natural airflow ventilators
Appendix B - Guide for determining net ventilating area
Appendix C - Imperial equivalents