Nace CP 1, Руководство по эксплуатации

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RP0176-2003
NACE International
29
graph 12.5.1.3). Documentation of verifications
should be made.
14.2.3.2 The inspector should routinely inspect
painting equipment to see that it is in good con-
dition and meets manufacturer’s specifications for
the materials to be applied. Documentation of ver-
ifications should be made.
14.2.3.3 Rigging and special scaffolding equip-
ment should be checked for safety and adequacy
for the job and compliance with the owner’s and
applicable regulatory requirements.
14.2.3.4 The inspector should inspect all surfaces
blasted to ensure that they meet specifications
prior to any coating application.
14.3 Coating Application
14.3.1 The inspector should not allow coating applic-
ation when the steel temperature is within 3°C (5°F) of
the dew point.
14.3.2 The inspector should check the application
equipment to ensure that proper pressures are being
used for the materials specified.
14.3.3 The inspector should check each applicator to
ensure that proper techniques are being used. Unsafe
practices should be reported.
14.3.4 The inspector should ensure that materials
sequence specifications are being followed.
14.3.4.1 The dry film thickness (DFT) of each coat
should be checked to ensure that thickness speci-
fications are met.
14.3.4.2 The cure or drying time should be
checked to ensure that specifications are followed.
14.3.5 The final surface can be checked for holidays
on nonconducting films.
14.3.6 The inspector should approve or disapprove all
surfaces prior to beginning the next coating operation.
Surfaces not meeting specifications should be redone.
14.3.7 The inspector should ensure that all surfaces
to be coated are free of oil, grease, salt deposits, and
moisture.
14.4 Inspection Equipment
14.4.1 The nozzle orifice gauge is required for mea-
suring wear on abrasive-blast nozzles.
14.4.2 The nozzle pressure gauge is required to mea-
sure actual pressure at the nozzle.
14.4.3 A surface profile comparator can be used to
determine surface profile or anchor pattern. Replica
tapes as described in NACE Standard RP0287
35
can
also be used to measure the anchor pattern.
14.4.4 A set of NACE surface preparation standards
for comparing surface preparation is recommended
(see Paragraph 12.3).
14.4.5 A humidity gauge or sling psychrometer should
be used to measure humidity and temperature.
14.4.6 A wet-film thickness gauge should be used.
14.4.7 Dry-film thickness (DFT) should be measured
with a nondestructive magnetic-type dry-film thickness
gauge.
14.4.8 A wet sponge-type holiday detector can be
used on nonconducting coatings for detecting holidays.
A high-voltage holiday detector is an alternative for
high-build coatings (DFT >1 mm [40 mils]).
14.4.9 A pocket knife or Tooke gauge may be used to
check interfilm adhesion and hardness and to deter-
mine whether all coats of a multicoat system were ap-
plied. This is a destructive test and should be em-
ployed as a last resort.
14.4.10 A variable-width cross-hatch knife blade guide
can be useful for conducting the adhesion test de-
scribed in Paragraph 14.4.9.
14.4.11 Other inspection equipment might include mir-
rors, solvents, sample containers, adhesive tape, ther-
mometers, and a surface roughness gauge.
14.5 Job Evaluation and Records
14.5.1 The inspector should keep a daily record that
includes all phases of the work.
14.5.1.1 The notes should record the number of
men working, equipment used, hours worked, and
weather conditions.
14.5.1.2 A record of all materials used during any
day should be made. This should include abra-
sives, coatings, solvents, and other materials.
14.5.1.3 Appropriate records indicating the degree
of compliance to the coating specification should
be completed by the inspector.
14.5.1.4 Records of type and location of coating
repairs should be kept.
14.5.2 The inspector should note job progress.
14.5.2.1 The inspector should note job progress of
each individual in m
2
(ft
2
) per day.