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ASTM D6867-03

(Specification)

Standard Specification for Perfluoroalkoxy (PFA)-Fluoropolymer Tubing

Standard Specification for Perfluoroalkoxy (PFA)-Fluoropolymer Tubing

ABSTRACT
This specification covers tubing produced from PFA fluoropolymer resins which are cited in another specification. This document specifies tubing dimensional tolerances, tensile properties and related electrical properties as noted in the appropriate tables when tested in accordance with the methods cited. Different tests shall be performed in order to determine the following properties of resins: inside diameter, wall thickness, specific gravity, tensile strength, elongation, and dimensional stability.
SCOPE
1.1 This specification covers tubing produced from PFA Fluoropolymer resins which are cited in Specification D 3307. This document specifies tubing dimensional tolerances, tensile properties and related electrical properties as noted in the appropriate tables when tested in accordance with the methods cited in this specification. This specification is for virgin material only and does not address recycled material, as it is not appropriate for PFA tubing.
Note 1—Abbreviations are in accordance with Terminology D 1600.
Note 2—There is no similar ISO standard.
1.2 The values stated in SI units are to be regarded as the standard. The values given in brackets are for information only.
1.3 The following safety hazards caveat pertains only to the test methods portion, Section 7, 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 requirements prior to use.

General Information

Status
Historical
Publication Date
09-Jul-2003
ICS
83.140.99 - Other rubber and plastics products
Technical Committee
D20 - Plastics
Drafting Committee
D20.15 - Thermoplastic Materials
Current Stage
Ref Project

Relations

Replaced By
ASTM D6867-03(2009) - Standard Specification for Perfluoroalkoxy (PFA)-Fluoropolymer Tubing
Effective Date
01-Sep-2009

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ASTM D6867-03 - Standard Specification for Perfluoroalkoxy (PFA)-Fluoropolymer TubingASTM D6867-03 - Standard Specification for Perfluoroalkoxy (PFA)-Fluoropolymer Tubing
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ASTM D6867-03 - Standard Specification for Perfluoroalkoxy (PFA)-Fluoropolymer Tubing
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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: D 6867 – 03
Standard Specification for
Perfluoroalkoxy (PFA)-Fluoropolymer Tubing
This standard is issued under the fixed designation D 6867; 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 IEEE/ASTM SI 10 Standard for Use of the International
System of Units (SI): The Modern Metric System
1.1 This specification covers tubing produced from PFA
Fluoropolymer resins which are cited in Specification D 3307.
3. Terminology
This document specifies tubing dimensional tolerances, tensile
3.1 Definitions—Definitions are in accordance with Termi-
properties and related electrical properties as noted in the
nology D 883 unless otherwise specified.
appropriate tables when tested in accordance with the methods
3.1.1 lot, n—one continuous production run or a uniform
cited in this specification. This specification is for virgin
blend of two or more production runs of one size sheet or
material only and does not address recycled material, as it is
molded basic shape.
not appropriate for PFA tubing.
NOTE 1—Abbreviations are in accordance with Terminology D 1600. 4. Physical Requirements
NOTE 2—There is no similar ISO standard.
4.1 The tubing shall be made of PFA-fluoropolymer resin
1.2 The values stated in SI units are to be regarded as the
meeting the requirements of Specification D 3307.
standard.Thevaluesgiveninbracketsareforinformationonly. 4.2 Theinsidediameterandwallthicknessandtolerancesof
1.3 The following safety hazards caveat pertains only to the the tubing shall be as shown in Table 1, when determined in
test methods portion, Section 7, of this specification. This
accordance with 7.1.3.1 and 7.1.3.2.
standard does not purport to address all of the safety concerns, 4.3 The specific gravity of the tubing shall be between 2.12
if any, associated with its use. It is the responsibility of the user
and 2.17 inclusive when determined in accordance with 7.1.4.
of this standard to establish appropriate safety and health 4.4 The tubing shall have a minimum tensile strength of
practices and determine the applicability of regulatory require-
10.0 MPa [1500 psi] and a minimum elongation of 200 %
ments prior to use. when determined in accordance with 7.1.5.
4.5 The tubing shall remain free from cracks and exhibit no
2. Referenced Documents
splitting when tested for dimensional stability in accordance
2.1 ASTM Standards:
with 7.1.6.
D 618 Practice for Conditioning Plastics for Testing
5. Sampling
D 792 TestMethodsforDensityandSpecificGravity(Rela-
tive Density) of Plastics by Displacement
5.1 Sampling shall be statistically adequate to satisfy the
D 883 Terminology Relating to Plastics requirements of 8.2.
D 1600 Terminology for Abbreviated Terms Relating to
6. Number of Tests and Retests
Plastics
D 1675 Test Method for Polytetrafluoroethylene Tubing 6.1 One set of five test specimens shall be considered
D 3307 Specification for Perfluoroalkoxy (PFA)- sufficient for testing each batch. The average result of the
Fluorocarbon Molding and Extrusion Materials specimens tested shall conform to the requirements of this
D 4894 Specification for Polytetrafluoroethylene (PTFE) specification.
Granular Molding and Ram Extrusion Materials
7. Test Methods
7.1 The properties enumerated in this specification shall be
determined in accordance with the following methods.
This specification is under the jurisdiction of ASTM Committee D20 on
7.1.1 Conditioning—Condition the test specimens at 23 6
Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic
2°C [73.4 6 3.6°F] for a period of at least 4 h prior to test. If
Materials.
Current edition approved July 10, 2003. Published August 2003. the test material has been exposed to temperatures below 20°C
Annual Book of ASTM Standards, Vol 08.01.
within 24 h prior to test, the conditioning shall be for at least
Annual Book of ASTM Standards, Vol 10.01.
24 h and as outlined in Practice D 618.
Annual Book of ASTM Standards, Vol 08.02.
Annual Book of ASTM Standards, Vol 08.03.
Available from ASTM International Headquarters, 100 Barr Harbor Drive, PO
Box C700, West Conshohocken, PA 19428–2959.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D6867–03
TABLE 1 Dimensions and Tolerances for PFA-Fluorocarbon Tubing-Dimensions, mm [in.]
Inside Diameter Wall Thickness
Nominal Inside Diameter, Inside Diameter Tolerance, Nominal Thickness, Thickness Tolerance,
mm [in.] mm [in.] mm [in.] mm [in.]
0 to 0.25 [0.000 to 0.010] 60.03 [0.001] 0 to 0.13 [0.000 to 0.005] 60.030 [0.001]
0.26 to 0.50 [0.011 to 0.020] 60.05 [0.002] 0.14 to 0.30 [0.006 to 0.012] 60.050 [0.002]
0.51 to 0.75 [0.021 to 0.030] 60.08 [0.003] 0.31 to 0.48 [0.013 to 0.019] 60.080 [0.003]
0.76 to 2.54 [0.031 to 0.100] 60.10 [0.004] 0.49 to 0.74 [0.020 to 0.029
...

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Standard Specification for Polymeric Piles

ABSTRACT
This specification establishes the physical and performance requirements for round and rectangular cross-section polymeric piles in axial and lateral load-bearing applications including, by not limited to, marine, waterfront, and corrosive environments. It does not apply to individual polymeric pile products, sheet piles, and other mechanically connected polymeric pile products using inter-locking systems. Covered here are six types of polymeric piles that are fabricated from materials that may be virgin, recycled, or both, as long as the finished product meets all of the criteria specified herein. These types are: Type I, polymeric only; Type II, polymeric with reinforcement in the form of chopped, milled or continuous fiber or mineral; Type III, polymeric with reinforcement in the form of metallic bars, cages, or shapes; Type IV, polymeric with reinforcement in the form of non-metallic bars or cages; Type V, polymeric composite tube with a concrete core; and Type VI, any other polymeric piling meeting the requirements stated herein and not otherwise described by Types I through V. The polymeric tiles shall adhere to specified physical attributes such as size, cross-sectional shape, length, straightness, placement of reinforcement, and surface conditions. The performance requirements which pile specimens shall conform to include creep rupture, serviceability, flexural properties, shear strength, bearing strength, design flexural stiffness, energy absorption, compressive strength, combined stresses, dimensional stability (thermal expansion), hygrothermal cycling, and flame spread index.
SCOPE
1.1 This specification addresses the use of round and rectangular cross-section polymeric piles in axial and lateral load-bearing applications, including but not limited to marine, waterfront, and corrosive environments.  
1.2 This specification is only applicable to individual polymeric pile products. Sheet pile and other mechanically connected polymeric pile products using inter-locking systems, are not part of this specification.  
1.3 The piling products considered herein are characterized by the use of polymers, whereby (1) the pile strength or stiffness requires the inclusion of the polymer, or (2) a minimum of fifty percent (50 %) of the weight or volume is derived from the polymer. The type classifications of polymeric piles described in Section 4 show how they can be reinforced by composite design for increased stiffness or strength.  
1.4 This specification covers polymeric piles fabricated from materials that are virgin, recycled, or both, as long as the finished product meets all of the criteria specified herein. Diverse types and combinations of inorganic filler systems are permitted in the manufacturing of polymeric piling products. Inorganic fillers include such materials as talc, mica, silica, wollastonite, calcium carbonate, etc. Pilings are often placed in service where they will be subjected to continuous damp or wet exposure conditions. Due to concerns of water sensitivity and possible affects on mechanical properties in such service conditions, organic fillers, including lignocellulosic materials such as those made or derived from wood, wood flour, flax shive, rice hulls, wheat straw, and combinations thereof, are not permitted in the manufacturing of polymeric piling products.  
1.5 The values are stated in inch-pound units as these are currently the most common units used by the construction industry.  
1.6 Polymeric piles under this specification are designed using design stresses determined in accordance with Test Methods D6108, D6109, and D6112 and procedures contained within this specification unless otherwise specified.  
1.7 Although in some instances it will be an important component of the pile design, frictional properties are currently beyond the scope of this document.  
1.8 Criteria for design are included as part of this specification for polymeric piles. Certain Types and...

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ASTM
ASTM D7486-22(Test Method)
Standard Test Method for Measurement of Fines and Dust Particles on Plastic Pellets by Wet Analysis

SIGNIFICANCE AND USE
5.1 Molding and extruding plastic pellets require dust free, dry pellets to prevent processing problems. Plastic producers try to remove the dust and streamers with dust removal systems prior to packaging and loading. How to accurately measure dust and streamer content in plastic pellets is an important quality control issue.  
5.2 Particle size analysis is used to determine a percentage of particle size distribution from a representative sample of the whole. In terms of size analysis concerning plastic pellets, sieving is used to determine the dust content in the range of 500 to 2000 micron. Test Method D1921, Test Method B, is used to determine this type of particle sizing.  
5.3 After dry sieve analysis, particles smaller than 500 microns need to be analyzed by wet method. A fresh sample shall be used for wet analysis. This test method allows washing down the fines attached to the pellets by electrostatic forces.  
5.4 The wet analysis provides accurate quantification of small to large amounts of fines, negating static effects, and eliminating detrimental effects of mechanical agitation. A wet analysis must be employed to accurately quantify lower PPM dust levels in plastic pellets.
SCOPE
1.1 This test method measures the amount of fine particles adhered on plastic pellets or granules in which they are commonly produced and supplied. The lower limit of this test method is restricted only by the porosity of the filter disc used to capture the particle size being quantified.  
1.2 The wet analysis technique allows for separation and collection of statically charged particles by liquid wash and filtration methods. This must be performed under standard laboratory conditions.  
1.3 The values stated in SI units are to be regarded as standard.  
1.4 This test method describes an essential practice to check the quality of plastics once the production cycle is terminated and to evaluate the performance of pellet cleaning systems or of the special pneumatic conveying systems for the distinct size fractions below 500 micron only.  
1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
Note 1: There is no known ISO equivalent to this standard.  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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