1. Regulations
  2. title 40
  3. chapter I-i20
  4. part 82
  5. subpart G
  6. appendix AppendixK

Appendix K - Appendix K to Subpart G of Part 82—Substitutes Subject to Use Restrictions and Unacceptable Substitutes Listed in the July 22, 2002, Final Rule Effective August 21, 2002

Foam Blowing—Unacceptable Substitutes

End-use Substitute Decision Comments Replacements for HCFC-141b in the following rigid polyurethane/polyisocyanurate applications:
—Boardstock
—Appliance
—Spray		HCFC-22, HCFC-142b and blends thereofUnacceptable Closed cell foam products and products containing closed cell foams manufactured with these substitutes on or before December 1, 2017 may be used after that dateAlternatives exist with lower or zero-ODP. All foam end-usesHCFC-124Unacceptable Closed cell foam products and products containing closed cell foams manufactured with this substitute on or before December 1, 2017 may be used after that dateAlternatives exist with lower or zero-ODP.
[81 FR 86883, Dec. 1, 2016]

AUTHORITY: 42 U.S.C. 7414, 7601, 7671-7671q.

SOURCE: 57 FR 33787, July 30, 1992, unless otherwise noted.