FINAL DRAFT prEN 14931

prEN 14931:2006 (E)
Testing:
Checking of whether the requirements according to IEC 60364-7-710 for spaces of the respective application
category are complied with.
4.2.22
Chamber paint shall be compatible with hyperbaric conditions.
4.3 Main chamber requirements
4.3.1
The maximum compression rate shall be greater than 80 kPa/min (0,8 bar/min) and not exceed 300 kPa/min
(3,0 bar/min).
Testing:
Checking as to whether the values are complied with.
4.3.2
During normal operation it shall be possible for the pressure in the main chamber to be reduced from 40 kPa (0,4 bar)
to 20 kPa (0,2 bar) within 1 min ± 20 s. Slower decompression rate during operation shall be possible. The main
chamber shall be provided with a separate emergency discharge valve marked accordingly and sealed and permitting
the pressure in the main chamber to be reduced from 200 kPa (2 bar) to ambient pressure within a period not
exceeding 2 min.
The location of the emergency discharge shall be defined using risk management procedure in accordance with
EN ISO 14971 manufacturer in cooperation with the operator.
Testing:
Checking as to whether the values stipulated are complied with.
4.3.3
The number of occupants allowed in the main chamber is to be stated on a plate prominently and permanently fixed
above the entrance.
Testing:
Inspection.
4.3.4
For each person to be accommodated, a seat or stretcher shall be provided and, after deduction for interior
equipment, a volume within the chamber of at least 1 m³.
Testing:
Checking of number of seats by inspection; checking of space within the chamber on the basis of design documents.
4.3.5
The main chamber shall be equipped with means ensuring a ventilation to maintain the chamber atmosphere within
specified limits given in Table 2. Means shall be provided so that during ventilation the pressure does not vary by
more than ±5 %.
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