OK. Here are the links to both documents:
AC 366
http://www.icc-es.org/criteria/pdf_files/ac366.pdfASTM D7254
http://www.astm.org/Standards/D7254.htm (gotta purchase this one to see in its entirety, but there is a description of the standard)
Evidently, there are several siding products made of this chemical recipe. We have been requested to submit this question to our membership and we wonder if it has already been applied without your knowing it.
Here’s a little bit of code tracking:
IBC
Chapter 14, section 1403.4 Fire resistance sends you to Chapter 7.
Chapter 7, section 703.2 Fire ratings APPLIES
section 704.4 Materials. APPLIES
Chapter 26, section 2603.5.4 Flame & Smoke ratings (ASTM E84) APPLIES
section 2603.5.5 Test Standard (NFPA 285) APPLIES
section 2603.5.6 Labeling APPLIES
section 2603.5.7 Ignition (NFPA 268) APPLIES
IRC section R702.1 General send you to R315
Section R315 Flame and smoke. (ASTM E84) APPLIES