ASTM D6098-97
(Specification)Standard Specification for Extruded and Compression Molded Shapes Made from Polycarbonate (PC)
Standard Specification for Extruded and Compression Molded Shapes Made from Polycarbonate (PC)
SCOPE
1.1 This specification covers requirements and test methods for the material, dimensions, and workmanship, and the properties of extruded and compression molded plate, rod, and tubular bar manufactured from polycarbonate.
1.2 This specification is not intended to cover materials used in glazing and signage as defined in 3.2.1 and 3.2.6. It is intended to be a means of calling out mechanical grade plastic products used for fabrication of end items or parts as defined in 3.2.2.
1.3 The properties included in this specification are those required for the compositions covered. Requirements necessary to identify particular characteristics important to specialized applications may be described by using the classification system given in Section 4.
1.4 This specification allows for the use of recycled plastics as defined in Guide D 5033.
1.5 The values stated in inch-pound units are to be regarded as the standard in all property and dimensional tables. For reference purposes, SI units are also included in Table S-PC and Table 1 only.
1.6 The following precautionary caveat pertains only to the test method portion, Section 12, of this specification. 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.
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Standards Content (Sample)
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Designation: D 6098 – 97
Standard Specification for
Extruded and Compression Molded Shapes Made from
Polycarbonate (PC)
This standard is issued under the fixed designation D 6098; 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.
INTRODUCTION
This specification is intended to be a means of calling out mechanical grade plastic product used in
the fabrication of end items or parts.
1. Scope D 256 Test Methods for Determining the Pendulum Impact
Resistance of Notched Specimens of Plastics
1.1 This specification covers requirements and test methods
D 618 Practice for Conditioning Plastics for Testing
for the material, dimensions, and workmanship, and the prop-
D 638 Test Method for Tensile Properties of Plastics
erties of extruded and compression molded plate, rod, and
D 790 Test Methods for Flexural Properties of Unreinforced
tubular bar manufactured from polycarbonate.
and Reinforced Plastics and Electrical Materials
1.2 This specification is not intended to cover materials used
D 883 Terminology Relating to Plastics
in glazing and signage as defined in 3.2.1 and 3.2.6. It is
D 3892 Practice for Packaging/Packing of Plastics
intended to be a means of calling out mechanical grade plastic
D 3935 Specification for Polycarbonate (PC) Unfilled and
products used for fabrication of end items or parts as defined in
Reinforced Material
3.2.2.
D 4000 Classification System for Specifying Plastic Mate-
1.3 The properties included in this specification are those
rials
required for the compositions covered. Requirements neces-
D 5033 Guide for the Development of Standards Relating to
sary to identify particular characteristics important to special-
the Proper Use of Recycled Plastics
ized applications may be described by using the classification
2.2 ANSI Standard:
system given in Section 4.
Z1.4-1993 Sampling Procedures and Tables for Inspection
1.4 This specification allows for the use of recycled plastics
by Attributes
as defined in Guide D 5033.
1.5 The values stated in inch-pound units are to be regarded
3. Terminology
as the standard in all property and dimensional tables. For
3.1 Definitions:
reference purposes, SI units are also included in Table S-PC
3.1.1 For definitions of other technical terms pertaining to
and Table 1 only.
plastics used in this specification, see Terminology D 883 or
1.6 The following precautionary caveat pertains only to the
Guide D 5033.
test method portions, Section 12, of this specification. This
3.1.2 regrind plastic, n—a product or scrap such as sprues
standard does not purport to address all of the safety concerns,
and runners and edge trim that have been reclaimed by
if any, associated with its use. It is the responsibility of the user
shredding and granulating for use in-house.
of this standard to establish appropriate safety and health
3.2 Definitions of Terms Specific to This Standard:
practices and determine the applicability of regulatory limita-
3.2.1 glazing product, n—a finished product which is glazed
tions prior to use.
or set in frame or sash and not held by mechanical fasteners
NOTE 1—There is no similar or equivalent ISO standard.
which pass through the product.
3.2.2 mechanical grade plastic product, n—extruded or
2. Referenced Documents
compression molded shapes made from polycarbonate used for
2.1 ASTM Standards:
fabrication of end items or parts.
1 3
This specification is under the jurisdiction of ASTM Committee D-20 on Annual Book of ASTM Standards, Vol 08.01.
Plastics and is the direct responsibility of Subcommittee D20.20 on Plastic Products Annual Book of ASTM Standards, Vol 08.02.
(Section D20.20.02). Annual Book of ASTM Standards, Vol 08.03.
Current edition approved April 10, 1997. Published May 1998. Available from American National Standards Institute, 11 W. 42nd St., 13th
As defined in Guide D 5033. Floor, New York, NY 10036.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
D 6098
3.2.3 plate, n—flat stock greater than ⁄4 in.
Tolerance
Symbol Material
(Based on the Total Mass)
3.2.4 recycled-plastic shape, n—a product made from up to
100 % recycled plastic.
C Carbon and graphite fiber 62%
reinforced
3.2.5 rod, n—an extruded solid cylindrical shape with a
G Glass-reinforced
minimum diameter of ⁄8in.
<15 % glass content 62%
3.2.6 signage product, n—a fabricated sign or outdoor/ >15 % glass content 63%
L Lubricants (for example, by agreement between the
indoor structure, consisting of any letter, figure, character,
PTFE, graphite, and silicone) supplier and the user
mark, point, plane, marquee sign, design, poster, pictorial,
M Mineral 62%
picture, stripe, line, trademark, reading matter or illuminating R Combinations of reinforcements 63 % for the total reinforcement
or fillers, or both
device, which is constructed, attached, erected, fastened, or
manufactured in any manner so that the same shall be used for
4.5 Callout Designation—A one-line system shall be used
the attraction of the public to any place, subject, person, firm,
to specify polycarbonate materials covered by this specifica-
corporation, public performance, article, machine or merchan-
tion. The system uses pre-defined cells to refer to specific
dise, and displayed in any manner for recognized advertising
aspects of this specification as illustrated below:
purposes.
4.5.1 Examples:
3.2.7 tubular bar, n—an extruded annular shape with mini-
4.5.1.1 Example 1—Product made from general purpose
mum inside diameter of ⁄8in. and minimum wall thickness of polycarbonate:
⁄16in.
CELL CALLOUT: S-PC0111
S-PC01 = Product made from PC in accordance with Table S-PC
1 = Unfilled class
4. Classification and Material
1 = General purpose grade product
4.1 Product shape and size as defined in the applicable
4.5.1.2 Example 2—Product made from 20 % glass rein-
purchase order.
forced general purpose polycarbonate:
4.2 This specification covers product extruded and compres-
CELL CALLOUT: S-PC0100G20I3454430
sion molded as listed in Table S-PC. Products included in the
S-PC0100 = Product made from PC in accordance with Table S-PC
G20 = 20 % glass
designations reference Specification D 3935 callouts where
1 = Table 1 properties
applicable.
3 = Tensile strength (10,000 psi)
4.2.1 The type of polycarbonate shape product may be 4 = Elongation at break (10 %)
5 = Tensile Modulus (500,000 psi)
categorized by type, grade and class depending on resin and
4 = Dimensional stability (0.4 %)
filler compositions as defined in Table S-PC.
4 = Flexural Modulus (550,000 psi)
3 = Izod Impact (1.0 ft-lb/in. of notch)
4.2.2 Each type of polycarbonate shape may be categorized
0 = Unspecified
into one of several grades as follows:
4.5.2 These two examples illustrate how a one-line, alpha-
4.2.2.1 Grade 1—General Purpose—Extruded or compres-
numeric sequence can identify the product composition, com-
sion molded product made using only 100 % virgin polycar-
mercial parameters and physical characteristics of extruded or
bonate resin.
compression molded product. A space must be used as a
4.2.2.2 Grade 2—Recycled—Extruded or compression
separator between the specification number and the type
molded product made using any amount up to 100 % recycled
designation. No separators are needed between type, class and
polycarbonate plastics.
grade. When special notes are to be included, such information
4.3 The type, class and grade is further differentiated based
should be preceded by a comma. Special tolerances must be
on dimensional stability (elevated temperature excursion test),
noted at the time of order and are inserted after the grade in
Table S-PC, and dimensional requirements, Tables A and B.
parenthesis and preceded by a comma.
4.4 Property Tables:
4.4.1 Table S-PC may be used to describe both extruded or
5. Ordering Information
compression molded products.
5.1 All shapes covered by this specification shall be ordered
4.4.2 Table 1 may also be used to describe extruded or
using the proper callout designation (see 4.5).
compression molded products not included in Table S-PC via a
cell callout that includes the applicable Table S-PC polycar- 6. Physical Property Requirements
bonate type and specific properties (Designations 1–7).
6.1 The physical property values listed within this specifi-
4.4.3 To facilitate the incorporation of future or special
cation’s tables are to be considered minimum specification
materials not covered by Table S-PC, the “as specified”
values. Any requirement for specific test data for a given
category (00) for type, class and grade is shown in the table
production lot should be specified at the time of order. Physical
with the basic properties to be obtained from Table 1, as they
properties for products not yet included in Table S-PC may be
apply.
specified using Table 1 for extruded or compression molded
4.4.4 Reinforcements and Additive Materials—A symbol
products.
(single-letter) will be used for the major reinforcement or
7. Dimensional Requirements
combination, or both, along with two numbers that indicate the
percentage of addition by mass with the tolerances as tabulated 7.1 The type, class and grade is differentiated based on
below. This must be included in all Table 1 callouts. dimensional stability (elevated temperature excursion test), as
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
D 6098
indicated in Table S-PC. 11.2 Standard Temperature—The tests shall be conducted at
7.2 Products shall be produced within commercial toler- the standard laboratory temperature of 73.4 6 3.6°F (23 6
ances and with the lowest stress levels for machined parts as 2°C) and 50 6 5 % relative humidity.
delineated in Tables A-1, B-1, and B-2.
12. Test Methods
7.3 Tubular bar dimensions shall be supplied in the unfin-
ished condition, unless otherwise specified at time of order,
12.1 Test tensile strength at break, elongation at break, and
sufficient to finish to the nominal dimension ordered.
tensile modulus (tangent) in accordance with Test Method D
7.4 The maximum allowable camber and/or bow shall be
638, at the rate of 0.2 in./min.
within the limits referenced in Tables A-1, B-1, and B-2.
12.1.1 Test all plate specimens in accordance with Type I of
Test Method D 638.
8. Workmanship, Finish, and Appearance
12.1.2 Test all rod specimens in accordance with Test
8.1 Appearance—The resin material color is transparent
Method D 638.
with water-white or light straw color. Natural resin is also
12.1.3 Test all tubular bar specimens in accordance with
offered with various amounts of blue tinting. The product color
Test Method D 638.
shall be as published by the shapes manufacturer. They shall be
12.2 Dimensional Stability:
uniform in color throughout the thickness. Specific colors and
12.2.1 Specimen Preparation (a Minimum of Three Test
color matching only as agreed to by order.
Samples Required):
8.1.1 Physical properties, although unaffected by tinting,
12.2.1.1 Rods and Tubular Bar—Prepare each specimen by
may be affected by other colors.
cutting a 1.5 in. long slice from the shape to be tested. Machine
8.2 Finish—All products shall be free of blisters, wrinkles,
the slice using a coolant and good machining practices to a
cracks, gouges and defects that restrict commercial use of the
length of 1.000 6 0.005 in. Each end of the specimen shall
product. Special surface finish shall be supplied only when
have a machined surface.
specified in the purchase order or contract.
12.2.1.2 Plate—Each specimen shall consist ofa2in.
8.3 Defects—All products shall be free of voids, dirt,
diameter disc machined from the flat (diameter shall equal test
foreign material and embedded particles exceeding 0.040 in.
specimen thickness with a minimum of 2.0 in.). The same care
maximum diameter as defined in 8.3.1.
shall be used in the machining as described in 12.1.1. The
8.3.1 The criteria for determining the internal cleanliness
thickness of the specimen shall be that of the original flat from
shall be external visual inspection. A maximum number of two
which it was cut, no machining being done on the top or
internal defects per square foot of plate and one foot length of
bottom faces.
rod and tubular bar are allowed. Clusters of defects less than
12.2.2 Testing Procedure—Measure the outside diameter
0.040 in. diameter are to be counted as a single defect.
and thickness or length of the specimen as applicable at 73.4 6
8.3.2 For compression molded products, four defects up to
1.8°F (23 6 1°C) to the nearest 0.0001 in. All measurements
0.080 in. diameter per square foot of plate are allowed.
shall be done on the centerline and 90° from the center line for
plate. Also take measurements for thickness halfway to center,
9. Sampling
and for diameter at mid-point. Place the specimen in a bath
9.1 Sampling shall be statistically adequate to satisfy the
consisting of polyalkylene glycol or an air circulating oven
requirements of this specification as applicable (see ANSI Z1.4
heated to 250 6 5°F (121 6 3°C). After 6 h, allow the
- 1993).
specimen to slowly cool to room temperature at a rate not to
9.2 For purposes of sampling, an inspection lot for exami-
exceed 40°F (22°C) / h. Measure the specimen at 73.4 6 1.8°F
nation and tests shall consist of all material of the same type,
(23 6 1°C) and calculate the percent change in each dimen-
class, grade and nominal size submitted for inspection at one
sion.
time.
12.3 Lengthwise Camber and Widthwise Bow—
10. Number of Tests 12.3.1 Make all measurements for camber and bow using
the maximum distance rod, sheet or plate deviates from the
10.1 Routine lot inspection shall consist of all the criteria
straight line extended from edge to edge when measured in
specified in the applicable product tables.
accordance with 12.3.2. The shape shall be oriented such that
10.2 The criteria listed in these product tables and defini-
the weight of the product does not influence the results.
tions are sufficient to establish conformity of the sheet, plate,
12.3.2 Rod and Plate:
rod or tubular bars to this specification. When the number of
12.3.2.1 Rod—Lay each rod on its side and measure it with
test specimens is not stated in the test method, a single
concave side facing a straigh
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