Standard Classification System for E-CTFE-Fluoroplastic Molding, Extrusion, and Coating Materials

ABSTRACT
This classification system covers melt processible molding, extrusion, and coating materials of ethylene-chlorotrifluoroethylene (E-CTFE) fluoroplastics. The resin is a copolymer of ethylene and chlorotrifluoroethylene. The classification of ECTFE materials into groups in accordance with their physical appearance, and further into classes based on melt flow rate, is provided. The test specimens shall be subjected to tests to determine their melt flow rate, melting endotherm peak, specific gravity, tensile property, dielectric constant and dissipation factor, and oxygen index.
SCOPE
1.1 This classification system covers melt processible molding, extrusion, and coating materials of ethylene-chlorotrifluoroethylene (E-CTFE) fluoroplastics. The resin is a copolymer of ethylene and chlorotrifluoroethylene containing approximately 80 weight % of chlorotrifluoroethylene.  
1.2 The values stated in SI units, as detailed in IEEE/ASTM SI-10, are to be regarded as standard.  
1.3 The following precautionary statement pertains only to the test methods portion, Section 11 of this classification system.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—Although this classification system and ISO 12086-1 and ISO 12086-2 differ in approach or detail, data obtained using either are technically equivalent.

General Information

Status
Historical
Publication Date
30-Apr-2013
Technical Committee
Current Stage
Ref Project

Relations

Buy Standard

Standard
ASTM D3275-08(2013) - Standard Classification System for E-CTFE-Fluoroplastic Molding, Extrusion, and Coating Materials
English language
4 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (Sample)


NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D3275 −08 (Reapproved 2013)
Standard Classification System for
E-CTFE-Fluoroplastic Molding, Extrusion, and Coating
Materials
This standard is issued under the fixed designation D3275; 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 (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope D1600 Terminology forAbbreviatedTerms Relating to Plas-
tics
1.1 This classification system covers melt processible
D1708 Test Method forTensile Properties of Plastics by Use
molding, extrusion, and coating materials of ethylene-
of Microtensile Specimens
chlorotrifluoroethylene (E-CTFE) fluoroplastics. The resin is a
D2863 Test Method for Measuring the Minimum Oxygen
copolymer of ethylene and chlorotrifluoroethylene containing
Concentration to Support Candle-Like Combustion of
approximately 80 weight % of chlorotrifluoroethylene.
Plastics (Oxygen Index)
1.2 The values stated in SI units, as detailed in IEEE/
D3892 Practice for Packaging/Packing of Plastics
ASTM SI-10, are to be regarded as standard.
D4591 Test Method for Determining Temperatures and
1.3 The following precautionary statement pertains only to Heats of Transitions of Fluoropolymers by Differential
the test methods portion, Section 11 of this classification
Scanning Calorimetry
system.This standard does not purport to address all of the IEEE/ASTM SI-10 Use of the International System of Units
safety concerns, if any, associated with its use. It is the
(SI): The Modern Metric System
responsibility of the user of this standard to establish appro- 2.2 ISO Standards:
priate safety and health practices and determine the applica-
ISO 12086-1 Plastics—Fluoropolymer Dispersion and
bility of regulatory limitations prior to use. Moulding and Extrusion Materials—Part 1: Designation
and Basis for Specification
NOTE 1—Although this classification system and ISO 12086-1 and
ISO 12086-2 Plastics—Fluoropolymer Dispersion and
ISO 12086-2 differ in approach or detail, data obtained using either are
technically equivalent. MouldingandExtrusionMaterials—Part2:Preparationof
Test Specimens and Determination of Properties
2. Referenced Documents
3. Terminology
2.1 ASTM Standards:
3.1 Definitions:
D150 Test Methods forAC Loss Characteristics and Permit-
3.1.1 Definitions of terms used in this classification system
tivity (Dielectric Constant) of Solid Electrical Insulation
shall be in accordance with Terminology D883.
D618 Practice for Conditioning Plastics for Testing
3.1.2 lot, n—one production run or a uniform blend of two
D638 Test Method for Tensile Properties of Plastics
or more production runs.
D792 Test Methods for Density and Specific Gravity (Rela-
tive Density) of Plastics by Displacement
3.2 Abbreviations:
D883 Terminology Relating to Plastics
3.2.1 Abbreviations are in accordance with Terminology
D1238 Test Method for Melt Flow Rates of Thermoplastics
D1600.
by Extrusion Plastometer
4. Classification
4.1 ECTFE materials are classified into groups in accor-
dance with their physical appearance. The groups are further
ThisclassificationsystemisunderthejurisdictionofASTMCommitteeD20on
Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic
divided into classes based on melt flow rate. These classes are
Materials
subdivided into grades as shown in the Table E-CTFE. An
Current edition approved May 1, 2013. Published May 2013. Originally
example of a material of this classification system is given as
approved in 1973. Last previous edition approved in 2008 as D3275 - 08. DOI:
10.1520/D3275-08R13. follows: ECTFE 01 1 1
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
Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036, http://www.ansi.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D3275−08 (2013)
TABLE E–CTFE
E,
Group Class Description Grade Melt Flow Specific Tensile Elongation, Melting Oxygen Dielectric Dissipation
F
A,B C D,E G H I J
Rate, Gravity, Strength, Point, °C, Index, Constant, Factor,
6 6
min, %
g/10 min 23/23°C min, MPa min min, % max, 10 Hz max, 10 Hz
01 powder 1 Low melt 1 0.05–1.50 1.65–1.71 40 200 240 52 2.6 0.015
flow rate
2 Medium melt 1 1.51–6.0 1.65–1.71 40 200 240 52 2.6 0.015
flow rate
3 High melt 1 6.1–25 1.65–1.71 40 200 240 52 2.6 0.015
flow rate
0 Other 0
02 pellet 1 Low melt 1 0.05–1.50 1.65–1.71 40 200 240 52 2.6 0.015
flow rate
2 Medium melt 1 1.51–6.0 1.65–1.71 40 200 240 52 2.6 0.015
flow rate
3 High melt 1 6.1–25 1.65–1.71 40 200 240 52 2.6 0.015
flow rate
4 Ultra Low 1 0.8–1.3 1.65–1.71 40 200 220 52 2.6 0.015
melt flow
rate
0 Other 0
00 0 Other 0
A
See 11.2 for test method for above parameters.
B
See 11.2 for test method for group 2 class 4 grade 1 replace 2.16 kg mass with 5 kg mass.
C
See 11.4 for test method for above parameters.
D
See 11.5 for test method for above parameters.
E
At 23 ± 2°C (73.4 ± 3.6°F).
F
See 11.5 for test method for above parameters.
G
See 11.3 for test method for above parameters.
H
See 11.7 for test method for above parameters.
I
See 11.6 for test method for above parameters.
J
See 11.6 for test method for above parameters.
where: average result of the specimens tested shall conform to the
requirements of this classification system.
01 = ECTFE powder
1 = low melt flow
10. Specimen Preparation
2 = properties in accordance with Table E-CTFE (Grade 1)
10.1 Test Specimens:
4.1.1 To facilitate incorporation of future material, the other
10.1.1 Prepare test moldings 3.18 6 0.3 mm
category for Group (00), Class (0) and Grade (0) are shown in
(0.125 6 0.012 in.) thick between two 0.38 to 0.51 mm (0.015
Table E-CTFE.
to 0.020 in.) thick chromium-plated ferrotype plates. Use a
“picture frame” type compression molding chase with inner
5. Ordering Information
dimensions of 178 by 178 mm (7 by 7 in.) and having a
5.1 The purchase order or inquiry for these materials shall
thickness suitable to produce the required molded sheet. Use a
state the classification callout. For example, D3275
charge of resin sufficient to provide the thickness sheet
ECTFE 01 1 2.
specified.
10.1.2 Place the mold chase on top of a chromium-plated
6. General Requirements
ferrotype plate. Charge a quantity of resin sufficient to produce
6.1 The material covered by this classification system shall
a 3.18 6 0.30-mm (0.125 6 0.012-in.) sheet in a diagonal
conformtotherequirementsprescribedinTableE-CTFEwhen
pattern from corner to corner forming an “X” patte
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.