Key To Symbols; Technical Specification - Sundstrom SR 900 Mode D'emploi

4.4.1 Changing the inhalation
membrane
• Remove the membrane. Fig. 36.
• Fasten the new membrane on the pin.
4.4.2 Changing the exhalation
membrane
• Remove the protective cap and the
membrane. Fig. 37.
• Press the new membrane onto the pin.
Carefully check that the membrane is in
contact with the membrane seat all round.
Fig. 38.
• Press the new protective cap into place.
Fig. 39.
4.4.3 Changing the head harness
• Detach the head harness from the mask.
Fig. 40.
• Attach the head harness to the mask. Fig. 41.
4.4.4 Change filter holder
• Detach the filter holder from the mask by
turning it a ¼ of a lap. Fig. 42.
• Attach the new filter holder. Fig. 43. Make
sure the gasket is mounted correctly on the
filterholder, see fig. 45.
4.4.5 Change of gasket
• Detach the filter holder, see 4.4.4 Change
filter holder.
• Release the gasket from the attachment on
the filterholder. Fig. 44.
• Mount the new gasket. Fig. 45.
• Attach the filter holder, see fig 43.

5. Technical specification

Inhalation resistance with particle filter
≈ 40 Pa at 30 l/min.
Exhalation resistance
≈ 73 Pa at 160 l/min.
Materials
The material and pigments of the SR 900 mask
body are approved for exposure to provisions,
which minimizes the risk of contact allergies.
All plastic parts are marked with material
codes. Fig. 46 A.
28
Shelf life
The shelf life for SR 900 is 5 years from the date
of manufacture, see the date clocks. Fig. 46 B.
Size and weight
Fig. 46 C.
Temperature range
• Storing condition. Fig. 47.
• Using conditions. Fig. 48.

6. Key to symbols

See user instructions
Date clocks, year and month
CE approved by
INSPEC Certification Ltd
Relative humidity
<XX% RH
+XX°C
Temperature range
-XX°C
Material designation
>XX+XX<
7. Approvals
CE/EN
The half mask SR 900 is approved in accordance
with EN 140:1998.
The EC type approval certificate has been issued
by Notified Body 0194. For the address, see the
reverse side of the user instructions.
Australian StandardsMark
The half mask SR 900 is tested and certified to
AS/NZS 1716:2012. The StandardsMark is issued
under licence by SAI Global Pty Limited Lic No.766
(ACN 108 716 669) ("SAI Global").