BS/EN 16716-2017 pdf download.Mountaineering equipment Avalanche airbag systems Safety requirements and test methods.
4.1.1.7 Condensation effects
When tested in accordance with 5.7, the avalanche airbag system shall meet the requirements of 4.1.1.2 and 4.1.1.4 and condensation effects shall not lead to malfunction or damage.
4.1.1.8 Working time span
The avalanche airbag system shall work at least over a time period of 24 h at —30 °C without any external support (e.g. power supply, pressure support). When tested in accordance with 5.8 the avalanche airbag system shall meet the requirements of 4.1.1.2 and 4.1.1.4.
4.1.1.9 Temperature range
Airbag systems shall achieve full inflation within the temperature range given by the manufacturer or between —30 °C and +50 °C, whichever is greater, without damage. Testing shall be carried out in accordance with the relevant clauses of 5.8, 5.9 and 5.10. The requirements of 4.1.1.2 and 4.1.1.4 shall be met and there shall be no damage to the airbag system.
4.1.1.10 Battery reserve time of electronic components
Electrically powered avalanche airbag systems shall have an integrated indication system which shows when the battery for the activation and inflation is low. When this occurs, the activation and inflation systems shall still be able to be deployed within the next 6 h. When tested in accordance with 5.11, the requirements of 4.1.1.2 and 4.1.1.4 shall be met.
4.1.1.11 Pressure performance
When tested in accordance with 5.12, all components of the airbag system that will be pressurized during full inflation shall withstand at least a pressure of the operating pressure plus 0.1 bar for 30 mm without damage. Leakage shall be compensated. After that, the airbag system shall be able to perform a further activation. The test requirement of 4.1.1.4 shall be met.
When tested in accordance with 5.13, all components of the airbag system that will be pressurized during full inflation shall withstand at least a pressure of the operating pressure plus 0.25 bar without bursting.
4.1.1.12 Alrbag impact
When tested in accordance with 5.14, the airbag impact test shall not damage the airbag.
The airbag shall still meet the minimum inflation requirement as described in 4.1.1.4.
4.1.1.13 Airbag fabric strength
The airbag fabric shall meet the following minimum requirements:
When tested in accordance with 5,17 the avalanche airbag system shall withstand a load of 3 kN for at least I mm, The avalanche airbag system shall not become detached from the dummy, and the airbag shall not become detached from the avalanche airbag system.
The avalanche airbag system and airbag shall remain in their original intended position.
4.1.2.3 Pull-off-strength
When tested in accordance with 5.18, slippage of the carrying system above the head of the user shall be prevented. If a leg ioop or vest is used, it shall withstand a load of 800 N applied in the direction of use for at least 1 mm. The leg loop shall not break and its fixation buckles shall not slip  20 mm. The vest shall not break and its fixation buckles shall not slip  20 mm.
When other systems are used to prevent slippage of the carrying system over the head of the user, they shall be tested in the same manner.
4.2 Design
4.2.1 Performance
The following requirements shall be verified by visual/practical evaluation. Where required, tests shall be performed In accordance with 5.19.
The avalanche airbag system shall be easy for the user to put on in the proper position and keep in their position during wearing under the consideration of external impacts such as necessary movements and postures. It shall have a simple adjustment to provide a correct fit for the user, It shall be easy to put on and take off.
The inflation system, activation system and airbag shall not be affected by anything that the avalanche airbag system is intended to carry (e.g. residues of food, drinks, sweet gels, snow shovel, probe, crampons).
Avalanche airbag systems shall be designed so that the user, under the intended conditions, can effectively perform the risk-related activity (skiing, ski touring, snowshoeing, snowmobiling, etc.) while having appropriate protection of the highest possible level.
If the bag is intended to carry outside devices like ice axes or skis, as recommended by the manufacturer, the inflated airbag shall not be damaged and the deployment of the airbag shall not be blocked.
When the airbag is deployed the user shall be able to continue their relevant activity (e.g. skiing. snowboarding, snowshoeing, snowmobiling) without losing sense of orientation, affecting field of vision or having movement restricted due to the inflated airbag in order to escape an avalanche.
Adequate measures in the construction of the device shall be taken to protect components of the airbag system from damage, when used in accordance with the manufacturer’s recommendations.BS/EN 16716-2017 pdf download.