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ASTM D4441-15
Standard Specification for Aqueous Dispersions of Polytetrafluoroethylene
STANDARD published on 1.5.2015
The information about the standard:
Designation standards: ASTM D4441-15
Note: WITHDRAWN
Publication date standards: 1.5.2015
SKU: NS-591123
The number of pages: 6
Approximate weight : 18 g (0.04 lbs)
Country: American technical standard
Category: Technical standards ASTM
The category - similar standards:
Annotation of standard text ASTM D4441-15 :
Keywords:
fluoropolymers, polytetrafluoroethylene, polytetrafluoroethylene dispersions, PTFE,, ICS Number Code 83.080.20 (Thermoplastic materials)
Additional information
| 1. Scope | ||||||||||||||||
|
1.1 This specification covers aqueous dispersions of polytetrafluoroethylene (PTFE) resins. These resins are homopolymers of tetrafluoroethylene, or in some cases modified homopolymers containing not more than 1 % by weight of other fluoromonomers. 1.1.1 The dispersion is usually stabilized by one or more surfactants. Other non-PTFE materials may be present in total at 5 % or less by weight for special purposes. 1.1.2 This specification is for virgin material only and does not address recycled material as it is not appropriate for dispersions. 1.2 This specification is used to determine if a shipment, lot, or container of PTFE dispersion is suitable for its intended use. It covers only aqueous dispersions of polytetrafluoroethylene. It does not cover PTFE copolymers or filled dispersions. This specification includes test methods for both aqueous dispersion and the PTFE in the dispersion. Note 1: Uses for the PTFE dispersion covered by this
specification include, but are not limited to, casting of their
films, impregnation of mechanical packings and other materials,
surface coatings on various substrates, combined impregnation and
coating of fibrous materials, and co-coagulation with other
materials for subsequent processing into films, sheets, rods, and
tubes.
Note 2: Information in this specification is technically
equivalent to related information in ISO 12086-1 and ISO
12086-2.
1.3 The values stated in SI units as detailed in IEEE/ASTM SI-10 are to be regarded as standard. The values given in parentheses are for information only. 1.4 The following precautionary caveat
pertains only to the test method portions of this specification.
Standard Practice for Packaging/Packing
of Plastics Standard Specification for
Polytetrafluoroethylene (PTFE) Resin Produced From Dispersion Standard Specification for
Polytetrafluoroethylene (PTFE) Granular Molding and Ram Extrusion
Materials Standard Test Method for Determining
Temperatures and Heats of Transitions of Fluoropolymers by
Differential Scanning Calorimetry Standard Test Method for Particle Size
Distribution of Catalytic Materials by Laser Light Scattering Standard Terminology Relating to
Plastics IEEE/ASTM SI-10 Use of the International System of Units
(SI): The Modern Metric System Standard Test Method for pH of Aqueous
Solutions With the Glass Electrode |
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