Makes the following changes to ANSI/ASHRAE 15-1994: (a) adds definitions to section 3; (b) replaces Section 6, Refrigerant Safety Classification; (c) replaces text in section 7, Restrictions on Refrigerant Use; (d) deletes footnote f from Table 1, Refrigerants and Amounts; (e) deletes Table 2, System Application Requirements, in its entirety and renumbers subsequent tables; (f) revises former Table; (g) revises Section 11, General Restrictions; (h) revises section 10, Operating and Testing; (i) revises section 12, Precedence with Conflicting Requirements; (j) deletes existing normative Appendix C and inserts a new informative Appendix C consisting of the figure deleted formerly in 6.1; (k) revises informative Appendix D, Informative References; (l) adds a citation for reference 26; (m) revises normative Appendix E, Normative References; (n) revises the citation for Standard 34; (o) updates the citation for reference 9, NFPA 70; and (p) adds a citation for reference 26.