Work Item
ASTM WK97681
Revision of F2471-19 Standard Practice for Installation of Thick Poured Lightweight Cellular Concrete Underlayments and Preparation of the Surface to Receive Resilient Flooring
Rationale
To remove unnecessary redundancy regarding substrate requirements and to remove mention of dry substrate requirements unless it is defined.
Also, requirements for density testing have been rearranged into appropriate Sections, specifically between sections 5 and 10 for Product Requirements and Field Quality Control, respectively.
Work Item Status
Date Initiated: 01-09-2026
Technical Contact: Elizabeth Rodenkirch
Item: 000
Ballot:
Status: