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Standard ASTM D5575-18(2023) 15.3.2023 preview

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ASTM D5575-18(2023)

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

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STANDARD published on 15.3.2023

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The information about the standard:

Designation standards: ASTM D5575-18(2023)
Publication date standards: 15.3.2023
SKU: NS-1136284
The number of pages: 12
Approximate weight : 36 g (0.08 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Thermoplastic materials

Annotation of standard text ASTM D5575-18(2023) :

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. Four property codes are presented: code 1 - melt temperature, code 2 - melt-flow rate or melt viscosity, or both, code 3 - tensile strength and modulus, and code 5 - density. The melt temperatures, melt-flow rate, melt viscosity, tensile properties, specific gravity, volume resistivity, dielectric constant, dissipation factor, and limiting oxygen index shall be tested to meet the requirements prescribed.

Keywords:
fluoropolymers, line callout, plastics, poly(vinylidene fluoride) copolymers,, ICS Number Code 83.080.20 (Thermoplastic materials)

Additional information

1. Scope

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.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

<1.6

>10E3

<40

D638 Type I

1.6 to <1.7

10E3 to 10E12

40 to <50

D638 Type II

1.7 to< 1.8

>10E12

50 to <60

D638 Type III

1.8 to <1.9

60 to< 70

D638 Type IV

1.9 to< 2.0

70 to <80

ISO 527 Type 1A

2.0 to <2.1

80 to <90

ISO 527 Type 1B

2.1 to< 2.2

<0.0012

>90

ISO 527 Type 6A

2.2 to< 2.3

<3.0

<0.0014

ISO 527 Type 7A

2.3 to <2.4

3.0 to< 3.1

<0.0016

ISO 12086/1 Fig. 1

2.4 to <2.5

3.1 to <3.2

<0.0018

D638 Type MI

3.2 to< 3.5

<0.0020

D638 Type MII

3.5 to <4.0

<0.0022

D638 Type MIII

4.0 to< 4.5

<0.0024

4.5 to <5.0

<0.0026

5.0 to< 5.5

<0.0028

5.5 to <6.0

<0.0030

D1708

6.0 to <6.5

<0.0035

6.5 to <7.0

<0.0040

7.0 to <8.0

<0.0060

8.0 to <9.0

<0.0080

9.0 to <10

<0.0100

10 to <11

<0.0300

11 to <12

<0.1000

12 to <14

>0.1000

>14

not specified

Note 2:?Many of these polymers exhibit polymorphism.1.8?Test methods used in this classification system can result in the incidental production of hazardous materials. Modified VDF polymer fluoroplastics melt between 90 and 182?C (194 and 359?F) and are thermally stable up to about 350?C (662?F), or somewhat higher, depending on the composition. (1.9?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 3:?Many, but not all of the codes and specifications found in this classification system are also in ISO 12086-1 and ISO 12086-2.

1.10?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.

2. Referenced Documents

D257-14(2021)e1	Standard Test Methods for DC Resistance or Conductance of Insulating Materials (Includes all amendments and changes 5/6/2021).
D618-21	Standard Practice for Conditioning Plastics for Testing
D638-22	Standard Test Method for Tensile Properties of Plastics
D3892-15(2020)	Standard Practice for Packaging/Packing of Plastics
D4591-22	Standard Test Method for Determining Temperatures and Heats of Transitions of Fluoropolymers by Differential Scanning Calorimetry
D4703-16	Standard Practice for Compression Molding Thermoplastic Materials into Test Specimens, Plaques, or Sheets
D5740-18	Standard Guide for Writing Material Standards in the Classification D4000 Format
IEEE/ASTM?S1–10	Standard for Use of the International System of Units (SI)
D1600-18	Standard Terminology for Abbreviated Terms Relating to Plastics (Withdrawn 2024)
D2863-23	Standard Test Method for Measuring the Minimum Oxygen Concentration to Support Candle-Like Combustion of Plastics (Oxygen Index)
D3222-21	Standard Specification for Unmodified Poly(Vinylidene Fluoride) (PVDF) Molding Extrusion and Coating Materials
D3418-21	Standard Test Method for Transition Temperatures and Enthalpies of Fusion and Crystallization of Polymers by Differential Scanning Calorimetry
D3835-16	Standard Test Method for Determination of Properties of Polymeric Materials by Means of a Capillary Rheometer
D792-20	Standard Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement
D883-24	Standard Terminology Relating to Plastics
D1238-23a	Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer (Includes all amendments and changes 12/6/2023).
D150-22	Standard Test Methods for AC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulation

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