PPM–400ST Formaldehyde Meter Operation Manual
Appendix A :
WEEE and RoHS Declarations
Waste
Electronic and
Electrical
Equipment (WEEE)
Declaration
As a manufacturer of electronic equipment, PPM
Technology Ltd. is responsible for the collection,
treatment, recycling and recovery of all of our
electrical equipment placed on the market within the
UK, at the end of their lifetime. Please note that the
“crossed out wheelie bin” symbol is displayed on all
our electrical equipment.
PPM Technology Ltd. WEEE from the UK should be
returned to PPM Technology for suitable disposal.
Restriction
of use of certain
Hazardous
Substances (RoHS)
Declaration
In compliance to the RoHS directive we declare that
our products do not contain more than maximum
permitted levels of Lead, Mercury, Hexavalent
Chromium, Polybrominated Biphenyls (PBBs) and
Polybrominated Diphenyl Ethers (PBDEs).
Appendix B :
Formaldehyde Calibration Table and Equation
Temperature
Concentration
Temperature
Concentration
15°C
1.324 ppm
23°C
2.589 ppm
16°C
1.433 ppm
24°C
2.693 ppm
17°C
1.550 ppm
25°C
2.914 ppm
18°C
1.678 ppm
26°C
3.154 ppm
19°C
1.815 ppm
27°C
3.412 ppm
20°C
1.964 ppm
28°C
3.693 ppm
21°C
2.126 ppm
29°C
3.996 ppm
22°C
2.300 ppm
Concentration = e
(0.0789
x Temperature)
x
0.4054
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