| (D) Aerospace vehicle or component--Any fabricated
part, processed part, assembly of parts, or completed unit, with the
exception of electronic components, of any aircraft including but
not limited to airplanes, helicopters, missiles, rockets, and space
vehicles.
(E) Aircraft fluid systems--Those systems that handle
hydraulic fluids, fuel, cooling fluids, or oils.
(F) Aircraft transparency--The aircraft windshield,
canopy, passenger windows, lenses, and other components which are
constructed of transparent materials.
(G) Antichafe coating--A coating applied to areas of
moving aerospace components that may rub during normal operations
or installation.
(H) Antique aerospace vehicle or component--An aerospace
vehicle or component thereof that was built at least 30 years ago.
An antique aerospace vehicle would not routinely be in commercial
or military service in the capacity for which it was designed.
(I) Aqueous cleaning solvent--A solvent in which water
is at least 80% by volume of the solvent as applied.
(J) Bearing coating--A coating applied to an antifriction
bearing, a bearing housing, or the area adjacent to such a bearing
in order to facilitate bearing function or to protect base material
from excessive wear. A material shall not be classified as a bearing
coating if it can also be classified as a dry lubricative material
or a solid film lubricant.
(K) Bonding maskant--A temporary coating used to protect
selected areas of aerospace parts from strong acid or alkaline solutions
during processing for bonding.
(L) Caulking and smoothing compounds--Semi-solid materials
which are applied by hand application methods and are used to aerodynamically
smooth exterior vehicle surfaces or fill cavities such as bolt hole
accesses. A material shall not be classified as a caulking and smoothing
compound if it can also be classified as a sealant.
(M) Chemical agent-resistant coating--An exterior topcoat
designed to withstand exposure to chemical warfare agents or the decontaminants
used on these agents.
(N) Chemical milling maskant--A coating that is applied
directly to aluminum components to protect surface areas when chemically
milling the component with a Type I or II etchant. Type I chemical
milling maskants are used with a Type I etchant and Type II chemical
milling maskants are used with a Type II etchant. This definition
does not include bonding maskants, critical use and line sealer maskants,
and seal coat maskants. Additionally, maskants that must be used with
a combination of Type I or II etchants and any of the above types
of maskants (i.e., bonding, critical use and line sealer, and seal
coat) are not included. Maskants that are defined as specialty coatings
are not included under this definition.
(O) Cleaning operation--Spray-gun, hand-wipe, and flush
cleaning operations.
(P) Cleaning solvent--A liquid material used for hand-wipe,
spray gun, or flush cleaning. This definition does not include solutions
that contain no VOC.
(Q) Clear coating--A transparent coating usually applied
over a colored opaque coating, metallic substrate, or placard to give
improved gloss and protection to the color coat.
(R) Closed-cycle depainting system--A dust free, automated
process that removes permanent coating in small sections at a time,
and maintains a continuous vacuum around the area(s) being depainted
to capture emissions.
(S) Coating operation--Using a spray booth, tank, or
other enclosure or any area (such as a hangar) for applying a single
type of coating (e.g., primer); using the same spray booth for applying
another type of coating (e.g., topcoat) constitutes a separate coating
operation for which compliance determinations are performed separately.
(T) Coating unit--A series of one or more coating applicators
and any associated drying area and/or oven wherein a coating is applied,
dried, and/or cured. A coating unit ends at the point where the coating
is dried or cured, or prior to any subsequent application of a different
coating.
(U) Commercial exterior aerodynamic structure primer--A
primer used on aerodynamic components and structures that protrude
from the fuselage, such as wings and attached components, control
surfaces, horizontal stabilizers, vertical fins, wing-to-body fairings,
antennae, and landing gear and doors, for the purpose of extended
corrosion protection and enhanced adhesion.
(V) Commercial interior adhesive--Materials used in
the bonding of passenger cabin interior components. These components
must meet the Federal Aviation Administration (FAA) fireworthiness
requirements.
(W) Compatible substrate primer--Either compatible
epoxy primer or adhesive primer. Compatible epoxy primer is primer
that is compatible with the filled elastomeric coating and is epoxy
based. The compatible substrate primer is an epoxy-polyamide primer
used to promote adhesion of elastomeric coatings such as impact-resistant
coatings. Adhesive primer is a coating that:
(i) inhibits corrosion and serves as a primer applied
to bare metal surfaces or prior to adhesive application; or
(ii) is applied to surfaces that can be expected to
contain fuel. Fuel tank coatings are excluded from this category.
(X) Confined space--A space that:
(i) is large enough and so configured that a person
can bodily enter and perform assigned work;
(ii) has limited or restricted means for entry or exit
(for example, fuel tanks, fuel vessels, and other spaces that have
limited means of entry); and
(iii) is not suitable for continuous occupancy.
(Y) Corrosion prevention compound--A coating system
or compound that provides corrosion protection by displacing water
and penetrating mating surfaces, forming a protective barrier between
the metal surface and moisture. Coatings containing oils or waxes
are excluded from this category.
(Z) Critical use and line sealer maskant--A temporary
coating, not covered under other maskant categories, used to protect
selected areas of aerospace parts from strong acid or alkaline solutions
such as those used in anodizing, plating, chemical milling and processing
of magnesium, titanium, or high-strength steel, high-precision aluminum
chemical milling of deep cuts, and aluminum chemical milling of complex
shapes. Materials used for repairs or to bridge gaps left by scribing
operations (i.e., line sealer) are also included in this category.
(AA) Cryogenic flexible primer--A primer designed to
provide corrosion resistance, flexibility, and adhesion of subsequent
coating systems when exposed to loads up to and surpassing the yield
point of the substrate at cryogenic temperatures (-275 degrees Fahrenheit
and below).
(BB) Cryoprotective coating--A coating that insulates
cryogenic or subcooled surfaces to limit propellant boil-off, maintain
structural integrity of metallic structures during ascent or re-entry,
and prevent ice formation.
(CC) Cyanoacrylate adhesive--A fast-setting, single
component adhesive that cures at room temperature. Also known as "super
glue."
(DD) Dry lubricative material--A coating consisting
of lauric acid, cetyl alcohol, waxes, or other noncross linked or
resin-bound materials that act as a dry lubricant.
(EE) Electric or radiation-effect coating--A coating
or coating system engineered to interact, through absorption or reflection,
with specific regions of the electromagnetic energy spectrum, such
as the ultraviolet, visible, infrared, or microwave regions. Uses
include, but are not limited to, lightning strike protection, electromagnetic
pulse (EMP) protection, and radar avoidance. Coatings that have been
designated as "classified" by the Department of Defense are excluded.
(FF) Electrostatic discharge and electromagnetic interference
coating--A coating applied to space vehicles, missiles, aircraft radomes,
and helicopter blades to disperse static energy or reduce electromagnetic
interference.
(GG) Elevated-temperature Skydrol-resistant commercial
primer--A primer applied primarily to commercial aircraft (or commercial
aircraft adapted for military use) that must withstand immersion in
phosphate-ester hydraulic fluid (Skydrol 500b or equivalent) at the
elevated temperature of 150 degrees Fahrenheit for 1,000 hours.
(HH) Epoxy polyamide topcoat--A coating used where
harder films are required or in some areas where engraving is accomplished
in camouflage colors.
(II) Fire-resistant (interior) coating--For civilian
aircraft, fire-resistant interior coatings are used on passenger cabin
interior parts that are subject to the FAA fireworthiness requirements.
For military aircraft, fire-resistant interior coatings are used on
parts that are subject to the flammability requirements of MIL-STD-1630A
and MIL-A-87721. For space applications, these coatings are used on
parts that are subject to the flammability requirements of SE-R-0006
and SSP 30233.
Cont'd... |
