• ASTM D4441-15

ASTM D4441-15

Standard Specification for Aqueous Dispersions of Polytetrafluoroethylene

ASTM International, 05/01/2015

Publisher: ASTM

File Format: PDF

$30.00$60.00


Published:01/05/2015

Pages:6

File Size:1 file , 94 KB

Note:This product is unavailable in Russia, Ukraine, Belarus

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. 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. Specific precautionary information is given in Notes 5 and 6.

More ASTM standard pdf

ASTM E1106-86(2002)e1

ASTM E1106-86(2002)e1

Standard Method for Primary Calibration of Acoustic Emission Sensors

$32.00 $65.00

ASTM D2086-03

ASTM D2086-03

Standard Test Method for Acidity in Vinyl Acetate and Acetaldehyde

$26.00 $52.00

ASTM F882-84(2002)

ASTM F882-84(2002)

Standard Performance and Safety Specification for Cryosurgical Medical Instruments (Withdrawn 2011)

$29.00 $58.00

ASTM D1394-76(2003)

ASTM D1394-76(2003)

Standard Test Methods for Chemical Analysis of White Titanium Pigments

$30.00 $60.00