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2. Metal Materials Measurable
Table 1 of Metal Materials that can be Measured
(OK: Measurable, NA: Not measurable)
Metal and Materials
Magnetism
Measurable
Remarks
Iron, nickel, cobalt
Ferromagnetism
OK
Aluminum, chrome,
manganese, titan,
stainless steel
(SUS-304, SUS-316)
Para magnetism
NA
Copper, silver, lead,
zinc, tin
Diamagnetic
NA
Natrium, calcium, lithium,
molybdenum
Para magnetism
NA
Raw material of
thickener for
grease
Iron oxide (
α
-Fe2O3)
Ferruginous
(Hydroxide iron)
Para magnetism
NA
*1
Iron oxide
(
γ
-Fe2O3, Fe3O4)
Ferromagnetism
OK
Sodium, calcium,
lithium, molybdenum
Para magnetism
NA
*2
*1: Iron oxide has several isomers, as can be noted from the table above there
are substance that can be measured with the Oil Steel Dust Checker and
substance that can not be measured. Specially in case the environment
allows the oxidation of iron particles easily and where the collected sample
contains red rust the measurement conduct may indicate a reading lower
than the actual concentration.
*2: When the grease contains a filler agent, the Grease Steel Dust Meter does
not have any sensitivity against such substance, and does not affect the
measured reading.
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Summary of Contents for SDM-72
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