©McDonald’s Corporation · Planned Maintenance Manual · Revised December 2008
Page 3 of 3
7018014_00 10/2011
Check of water quality
(continued)
11
Check general hardness
Measure the general hardness (GH).
Pour 5ml of sampled water into an analysis container
for each water type. One drop of the analysis liquid is
equivalent to 1°dH.
CAUTION!
Chemicals can cause eye and skin irritations.
12
Check carbonate hardness
Measure the carbonate hardness (KH)
Pour 5ml of sampled water into an analysis container
for each water type. One drop of the analysis fluid is
equivalent to 1°dH.
CONVOTHERM
,
C
ombination
oven,
OES 6.10
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IED
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28
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