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    ASTM

    ASTM D5575 : 18(2023)

    Standard Classification System for Copolymers of Vinylidene Fluoride (VDF) with Other Fluorinated Monomers

    Standard Details

    1.1 This classification system covers both developing property designations and specifications for thermoplastic compositions consisting of vinylidene fluoride (VDF) polymers modified with other fluoromonomers and property-enhancing additives. The other fluoromonomers include one or more of the following: hexafluoropropylene (HFP), tetrafluoroethylene (TFE), and chlorotrifluoroethylene (CTFE). The additives are those that improve its flame resistance, processing, or physical properties. However, these additives are not normally considered to be reinforcing. This classification system covers thermoplastic compositions supplied in pellet or powder forms.

    1.2 A designation or specification applies only to the virgin polymers prepared from vinylidene fluoride (>50 weight %) with one or more of the following comonomers: hexafluoropropylene, tetrafluoroethylene, and chlorotrifluoroethylene. Some polymers contain additives to enhance certain properties.

    1.3 This system constitutes a line callout as a means of designating and specifying properties of VDF-based copolymers. At least four of the designated properties are used to define a polymer's specification. Specification criteria from international documents can be used if their criteria match designation properties currently used by this classification system.2 This classification system is not intended for the selection of materials.

    1.4 The manufacturer of the virgin resin shall establish the designation of a resin based on the property value criteria in this classification system.

    1.5 The minimum specification properties are established by this classification system. Additional specification properties, based on the designation properties cited, can be established by the resin supplier and customer.

    1.6 The values stated in SI units are to be regarded as standard.

    1.7 The property tests are intended to provide information for specifications of modified VDF-copolymer compositions. It is not the purpose of this classification system to provide engineering data for design purposes.

    Note 1: Although the values listed in Table 1, Table 2, Table 3, Table 4, and Table 5 are necessary to include the range of properties available in existing materials, they are not to be interpreted as implying that every possible combination of the properties exists or can be obtained. It is possible for a user or designer, using Tables 1-5, to call out property relationships that are physically impossible to occur in a copolymer made using current technology.


    Position 5

    Position 6

    Position 7

    Position 8

    Code

    Specific Gravity,
    g/cm3

    Code

    Electrical a-c
    Dielectric Constant

    Loss

    d-c Electric Volume

    Code

    Limiting Oxygen
    Index

    Code

    Specimen Type

    a

    <1.6

    a

    >10E3

    a

    <40

    a

    D638 Type I

    b

    1.6 to <1.7

    b

    10E3 to 10E12

    b

    40 to <50

    b

    D638 Type II

    c

    1.7 to< 1.8

    c

    >10E12

    c

    50 to <60

    c

    D638 Type III

    d

    1.8 to <1.9

    d

    d

    60 to< 70

    d

    D638 Type IV

    e

    1.9 to< 2.0

    e

    e

    70 to <80

    e

    ISO 527 Type 1A

    f

    2.0 to <2.1

    f

    f

    80 to <90

    f

    ISO 527 Type 1B

    g

    2.1 to< 2.2

    g

    <0.0012

    g

    >90

    g

    ISO 527 Type 6A

    h

    2.2 to< 2.3

    h

    <3.0

    <0.0014

    h

    h

    ISO 527 Type 7A

    i

    2.3 to <2.4

    i

    3.0 to< 3.1

    <0.0016

    i

    i

    ISO 12086/1 Fig. 1

    j

    2.4 to <2.5

    j

    3.1 to <3.2

    <0.0018

    j

    j

    D638 Type MI

    k

    k

    3.2 to< 3.5

    <0.0020

    k

    k

    D638 Type MII

    l

    l

    3.5 to <4.0

    <0.0022

    l

    l

    D638 Type MIII

    m

    m

    4.0 to< 4.5

    <0.0024

    m

    m

    n

    n

    4.5 to <5.0

    <0.0026

    n

    n

    o

    o

    5.0 to< 5.5

    <0.0028

    o

    o

    p

    p

    5.5 to <6.0

    <0.0030

    p

    p

    D1708

    q

    q

    6.0 to <6.5

    <0.0035

    q

    q

    r

    r

    6.5 to <7.0

    <0.0040

    r

    r

    s

    s

    7.0 to <8.0

    <0.0060

    s

    s

    t

    t

    8.0 to <9.0

    <0.0080

    t

    t

    u

    u

    9.0 to <10

    <0.0100

    u

    u

    v

    v

    10 to <11

    <0.0300

    v

    v

    w

    w

    11 to <12

    <0.1000

    w

    w

    x

    x

    12 to <14

    Status : ACTIVE
    Standard Type: Main
    Document No: ASTM D5575 : 18(2023)
    Document Year: 2018
    Pages: 12
    • Section Volume:
    • 08.03 Volume 08.03 Plastics (III): D5117 - latest; Reinforced Plastic Piping Systems and Chemical Equipment; Plastic Building Products
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