Amprobe CO2-200 Podręcznik użytkownika - Strona 17

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APPENDIX - CO2 LEVELS AND GUIDELINES

NIOSH recommendations

250-350 ppm: normal outdoor ambient concentrations

600 ppm: minimal air quality complaints

600-1000 ppm: less clearly interpreted

1000 ppm: indicates inadequate ventilation; complaints

such as headaches, fatigue, and eye/throat irritation will

be more widespread. 1000 ppm should be used as an

upper limit for indoor levels.

ASHRAE Standard 62-1989: 1000ppm

CO2 concentration in occupied building should not

exceed 1000ppm.

Building bulletin 101 (BB101): 1500ppm

UK standards for schools say that CO2 at averaged over

the whole day(i.e. 9am to 3.30pm) should not exceed

1500ppm.

OSHA: 5000ppm

Time weighted average over five 8-hour work days

should not exceed 5000ppm.

Germany, Japan, Australia, UK: 5000ppm

8 hours weighted average in occupational exposure limit

is 5000ppm.