Standard Practice for Classifying Visual Defects in Thermosetting Reinforced Plastic Pultruded Products

SCOPE
1.1 This practice covers acceptance criteria for visual acceptance of thermosetting reinforced plastic pultruded rods, bars, shapes, and sheets.
1.2 This practice presents definitions of possible defects to serve as a guide for contracts, drawings, product specifications, and final inspection.
1.3 This practice also categorizes different inspection requirements for three grades of product quality.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Note 1—There is no similar or equivalent ISO standard.

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Publication Date
09-Mar-2002
Technical Committee
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ASTM D4385-02 - Standard Practice for Classifying Visual Defects in Thermosetting Reinforced Plastic Pultruded Products
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D4385–02
Standard Practice for
Classifying Visual Defects in Thermosetting Reinforced
1
Plastic Pultruded Products
This standard is issued under the fixed designation D 4385; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope* punched, drilled, and riveted without causing splitting or
delamination when good commercial practices are employed
1.1 This practice covers acceptance criteria for visual ac-
(for example, proper backup, adequate hole spacing, etc.).
ceptance of thermosetting reinforced plastic pultruded rods,
3.4 Critical Areas—Areas in which the presence of imper-
bars, shapes, and sheets.
fections is considered to be detrimental to the proper function
1.2 This practice presents definitions of possible defects to
of the part shall be designated as critical areas. The areas of a
serve as a guide for contracts, drawings, product specifications,
product that are critical structurally, aerodynamically, electri-
and final inspection.
cally, or for some other purpose shall be uniform and in
1.3 This practice also categorizes different inspection re-
accordance with the quality levels of Table 1 as stated on the
quirements for three grades of product quality.
product drawing. Critical areas may be designated on the
1.4 This standard does not purport to address all of the
product drawing by one of the following methods:
safety concerns, if any, associated with its use. It is the
3.4.1 Encircle critical areas,
responsibility of the user of this standard to establish appro-
3.4.2 Cross-hatch areas to designate areas of various levels,
priate safety and health practices and determine the applica-
or
bility of regulatory limitations prior to use.
3.4.3 Word description.
NOTE 1—There is no similar or equivalent ISO standard.
3.5 Allowable Defects—Defects that by nature, number, or
frequency of occurrence do not affect the serviceability of the
2. Referenced Documents
product. These allowable defects shall be fully described as to
2
2.1 ASTM Standards:
type, size, number, extent allowed, and spacing. The appropri-
D 3647 Practice for Classifying Reinforced Plastic Pul-
ate acceptance level (see Table 1) for defects in these areas
truded Shapes According to Composition
mustbespecified.Defectsinexcessofthoselistedasallowable
D 3917 Specification for Dimensional Tolerance of Ther-
in the product specifications, drawings, or contracts for the
mosetting Glass-Reinforced Plastic Pultruded Shapes
product shall be cause for rejection.
3.6 Acceptable Defects—Unless otherwise specified, the
3. Acceptance Criteria
following defects shall be acceptable in all instances:
3.1 The method and frequency of sampling and the quality
3.6.1 Shrink-Mark—A dimple-like depression on the sur-
levelshallbeagreeduponbetweenthepurchaserandtheseller.
face of a pultruded shape where it has retracted from the
3.2 Dimensions and Tolerances—Pultruded shapes shall be
pultrusion die, and which has well-rounded edges. A shrink-
inspected for conformance with dimensions and tolerances
mark generally occurs on one surface of a part where there is
specified on the product drawing. Products with any dimen-
a boss, flange, rib, or other heavy section on the opposite
sions exceeding the specified limits shall be rejected.
surface. The shrink-mark may be caused by the difference in
3.3 Punchability—Products 5 mm thick or thinner, having
total shrinkage when there is a sudden change in section along
Reinforcement Material G and Reinforcement Type M in
the surface of the part.
accordance with Practice D 3647, shall be capable of being
3.6.2 Resin Voids—Applicable to a number of mat- and
fabric-type reinforcement systems, particularly continuous
1 strand mat used without a surfacing material or woven fabrics.
This practice is under the jurisdiction ofASTM Committee D20 on Plastics and
The resin voids appear as multiple surface interruptions that
is the direct responsibility of Subcommittee D20.18 on Reinforced Thermosetting
Plastics.
conform to the pattern of the cloth weave or the continuous
Current edition approved March 10, 2002. Published May 2002. Originally
strand mat fiber distribution. This is usually due to an insuffi-
published as D 4385 – 84. Last previous edition D 4385 – 95.
2 cient flow or shrinkage of the resin that fails to fill all of the
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM interstices of the fabric or mat reinforcement. These defects
Standards volume information, refer to the standard’s Document Summary page on
the A
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