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Appendix I: Carbon Monoxide Room Safety Tests Sprint eVo
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Appendix I: Carbon Monoxide
Room Safety Tests
Sprint instruments are designed to assist heating engineers to work to the BS
7967 specification for carbon monoxide room safety testing. You should refer
to BS7967, which defines the requirements, details the methods as well as the
pass and fail criteria for various types of appliances.
CO Room Safety Test in the Sprint instruments is designed to measure the build
up of carbon monoxide levels in a room where a gas appliance is in use and
record those values each minute for the duration of the test. In addition at the
end of the test it assists the engineer (in an advisory capacity only) to determine
whether the test has passed or failed or if the results are invalid. In certain
circumstances, where the results are borderline or open to interpretation, the
instrument will ask the operator to decide if the test has passed or failed, and
will record the operators decision.
Please note: ultimately it is the responsibility of the operator to ensure that the test
is correctly performed to the BS 7967 specification. If the data does not support the
result or the operator suspects it is not reliable due to local conditions (such as carbon
monoxide level changes due to cigarette smoke or vehicle traffic) or incorrect, then
either the test should be repeated or the operator should seek expert advice.
CO Room Test Pass and Fail Test Specifications
Type C:
Room sealed
appliance
Type B:
Boiler
(open flue)
Type A:
Cooker
(flueless)
Type A:
Water heater
(flueless)
Type A:
Space heater
(flueless)
Max Allowed CO: 10 ppm 10 ppm 30 ppm 10 ppm 10 ppm
Max Peak Duration
exceeding Max
Allowed CO:
60 secs 60 secs 20 mins 30 secs 60 secs
CO Alarm Level: 30 ppm 30 ppm 90 ppm 30 ppm 30 ppm
Min Test Duration: 15 mins 15 mins 20 mins 5 mins 30 mins
Max Test Duration: 30 mins 30 mins 30 mins 10 mins 30 mins
Result Codes
The pass or fail result is displayed when the test completes and is printed on
the report as well as recorded in the log. If the test fails a code number is also
displayed, printed on the report and recorded in the log. This fail code identi-
fies the way in which the test failed and can help identify the cause. Also when
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