Work Item
ASTM WK80030

Revision of D1418-21a Standard Practice for Rubber and Rubber Latices—Nomenclature


Two new definitions are requested, namely:
FKO—fluoropolyether rubber.
FFKO—perfluoropolyether rubber.
These new terms apply to the elastomeric compounds in US patent US20080107950A1 assigned to the company Shin-Etsu. These are “O-type” rubber because it is based on perfluoropolyether.


Developed by Subcommittee: D11.08

Committee: D11

Staff Manager: Melissa Marcinowski

Work Item Status

Date Initiated: 11-23-2021

Technical Contact: Masashi Mizoroki

Item: 001

Ballot: D11 (22-01)

Status: Ballot Item Approved