ASTM-F2678 Complete Document History
Standard Practice for Preparing Panel Underlayments, Thick Poured Gypsum Concrete Underlayments, Thick Poured Lightweight Cellular Concrete Underlayments, and Concrete Subfloors with Underlayment Patching Compounds to Receive Resilient Flooring

Complete Current Edition:
   2016 R21 EDITION - REAPPROVED IN 2021 - Oct. 20, 2021

Obsolete Revision Information:
   2016 EDITION - Preparing Panel Underlayments, Thick Poured Gypsum Concrete Underlayments, Thick Poured Lightweight Cellular Concrete Underlayments, and Concrete Subfloors with Underlayment Patching Compounds to Receive Resilient Flooring - March 15, 2016
   2010 EDITION - Preparing Panel Underlayments, Thick Poured Gypsum Concrete - June 1, 2010