BS ISO 21927-2:2018 – TC:2020 Edition
$280.87
Tracked Changes. Smoke and heat control systems – Specifications for natural smoke and heat exhaust ventilators
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 172 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 102 | National foreword |
| 106 | Foreword |
| 107 | Introduction |
| 109 | 1 Scope 2 Normative references 3 Terms and definitions |
| 112 | 4 Symbols and abbreviated terms |
| 113 | 5 Requirements 5.1 Nominal activation conditions/sensitivity 5.1.1 Initiation device |
| 114 | 5.1.2 Opening mechanism 5.1.3 Inputs and outputs 5.2 Response delay (response time) 5.2.1 Reliability 5.2.2 Opening under (snow/wind) load |
| 115 | 5.2.3 Low ambient temperature 5.2.4 Opening under heat 5.3 Operational reliability 5.4 Effectiveness of smoke/hot gas extraction (aerodynamic free area) 5.5 Performance parameters under fire conditions 5.5.1 Resistance to heat |
| 116 | 5.5.2 Mechanical stability 5.5.3 Reaction to fire 5.6 Performance under environmental conditions 5.6.1 Opening under load 5.6.2 Low ambient temperature 5.6.3 Stability under wind load 5.6.4 Resistance to wind-induced vibration 5.6.5 Resistance to heat |
| 117 | 5.7 Durability 5.7.1 Response delay (response time) 5.7.2 Operational reliability 5.7.3 Performance parameters under fire conditions 6 Testing, assessment and sampling methods |
| 118 | 7 Marking, labelling and packaging |
| 120 | Annex A (normative) Classification |
| 123 | Annex B (normative) Effectiveness of smoke/hot gas extraction (aerodynamic free area) |
| 146 | Annex C (normative) Test method for operational reliability and response time |
| 148 | Annex D (normative) Test method for opening under load |
| 150 | Annex E (normative) Test method for low ambient temperature |
| 151 | Annex F (normative) Test method for stability under wind load |
| 153 | Annex G (normative) Test method for resistance to heat |
| 164 | Annex H (normative) Mounting and fixing conditions for the SBI or small flame tests |
| 167 | Annex I (normative) Handling changes affecting declared performances for NSHEV |
| 170 | Annex J (informative) Installation and maintenance information |
| 171 | Bibliography |
