Nace: Corrosion costs $2.5 trillion
annually
Every year, corrosion causes an economic
damage of more than $ 2.5 trillion
worldwide. Therefore, the prevention of
corrosion, is an issue that plays an im
portant role in many areas.
The new MMS® Inspection series that is
optimized for corrosion protection reli
ably supports the inspector in assessing
corrosion-exposed components and in
jobs that involve checking of corrosion
protection.
Corrosion is the deterioration of a
metal as a result of chemical reactions
between it and the surrounding en
vironment. This leads to a functional
impairment of the metallic component
over time.
Accordingly, rust formation on a railroad
track is not harmful, since the function
of the rail is not diminished.
However, a pipe which has become
leaky due to pitting corrosion is clearly
defective, since the safe transport of
liquids is no longer guaranteed.
The same applies to the maritime sector,
where material surfaces attacked by
corrosion on ship walls can quickly
become a safety risk.
There are serious consequences caused
by corrosion in engineering structures
such as bridges. If the steel structure
corrodes without any control, a bridge
can quickly become a threat to those
who move on it.
Furthermore, there are economic
advantages to implementing proper
corrosion prevention methods.
In order to protect metallic materials
against environmental influences and
thus corrosion, in most cases coating
with suitable corrosion protection
material is sufficient.
The expense for this – passive –
corrosion protection is relatively low in
relation to the costs caused by corrosion
such as loss of value, downtime,
dismantling, etc.
6
MMS® Inspection DPM (Dew Point Meter)
MMS® Inspection SPG (Surface Profile Gauge)
For companies and institutions saving
The MMS series offers a third model, the MMS
on Inspection
corrosion
it usually
SPG. protection,
This gauge measures
according to the
“Peak to Valley”
method, meeting
ASTM the
D 4417-B and
becomes
expensive
to repair
US Navy NSI 009-32 standards. The surface profile
damages
afterwards.
depth influences
the amount of paint needed. If the peak
to valley distance is too big, the applied paint layer may
not be thick enough on the peaks. Additionally, the pro-
This
is especially
so for
structures
file infuences
the adhesion
of the
paint on the surface.
that are very difficult to access after
The MMS series is offered as a set of three to enable
installation,
such as offshore wind
better corrosion protection. They are the only device
on the market that meet IP 65 protection requirements
turbines.
which include dust protection and water proof.
Corrosion
protection
The MMS Inspection
offers involves
one-handed regular
operation and
provides immediate
feedback for
by means
of light, vi-
inspection
and checks
proper
bration and sound. The auto rotate function allows the
functioning.
corrosion inspector to view measurement results at all
important angles.
This means that inspectors and service
personnel need to use targeted
measurements to inspect if the quality
of the corrosion protection coatings still
meet specified standards.
With regard to coating thickness gauges
used here, both magnetic induction
method and eddy-current testing have
established themselves as standards
worldwide.
1) NACE International, impact.nace.org
(2016)
Rusting, the formation of iron
oxides, is a well-known example of
electrochemical corrosion.
Magnetic induction is the method of
choice for measuring the thickness of
non-magnetic layers on magnetic base
materials, e.g. layers of paint, plastic,
MMS® Inspection DFT (Dry Film Thickness)
galvanized or hot-dip galvanized layers
A big advantage of the MMS® Inspection series is the
on intuitive
steel user
and interface
iron. The
cur
rent
for all eddy
systems.
The
software
guides the is user
step by step
the individual
method
suitable
for through
electrically
non- mea-
suring programs and shows him how to proceed with
conductive
layers
on the
non-ferrous
each measurement.
Thus,
devices can be metals,
handled
reliably
untrained
personnel.
such
as even
e.g. by paint,
lacquer
or plastic on
aluminium.
Helmut Fischer has designed this series of gauges to
make corrosion protection inspection considerably eas-
ier. This enables many companies around the world to
Depending
on the version, modern
avoid corrosion damage and the resulting loss of value.
gauges such as the newly developed
MMS® Inspection series from Helmut
Fischer offer both measuring methods.
Helmut Fischer has made every effort to
ensure the convenience of the user. For
this reason, international measurement
standards such as SSPC PA2 (Level 1-5),
IMO PSPC, ISO 19840, Australian AS
3894.3-2002 or Swedish IS 1841 60
are firmly integrated as pre-configured
batches or measurement specifications
via the software.
The dew point measuring device MMS®
Inspection DPM, which belongs to the
same series, measures the dew point
before the corrosion protection paint is
applied.
This helps to ensure that the coating
is applied under proper environmental
conditions.
If the conditions are not suitable,
premature corrosion may occur or the
paint may peel off as a result of poor
adhesion.
www.fischergb.co.uk