Standard Practice for
Classifying Reinforced Plastic Pultruded Shapes According
This standard is issued under the fixed designation D 3647; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of the 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.
1.1 This practice outlines a method for classifying reinforced plastic pultruded shapes according to their composition.
1.2 One objective of this practice is to provide a codification
means and descriptive limits for classification.
1.3 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.
2.1 The definitions of reinforcement material, reinforcement
type, resin type, and filler amount and their respective levels
are described below.
NOTE 1—As an example, a pultruded shape made from a polyester resin
mix with 13 % filler and glass roving reinforcement plus woven tape on
the surface comprising perhaps 4 % of the total would be designated as
2.2 Reinforcement Materials:
2.2.1 G—Fiberglass constitutes 90 % or more by weight of
2.2.2 C—Carbon fibres constitute 90 % or more by weight
of total reinforcement.
2.2.3 O—Other fibres constitute 90 % of reinforcement.
2.2.4 S—Special composition not covered above.
2.3 Reinforcement Type:
2.3.1 R—Roving constitutes 90 % of total reinforcement.
2.3.2 M—Mat constitutes 90 % of total reinforcement.
Click below to download Astm D 3647 – 03 pdf free
Click here to download Astm D 3645 – 03 Pdf Free Download