The solvent recycler has to be listed to the standard, UL 2208 Standard for Solvent Distillation Units and used only in the location type it is certified for.
The 1997 Uniform Fire Code, Volume 1, 10th Edition, Article 79 section 7903.4, (page 1-192): 7903.41 General. Solvent distillation units used to recycle Class I, II or III-A liquids having a distillation chamber capacity of 60 gallons (227.1 L) or less shall be listed, labeled and installed in accordance with Table 7903.4 and nationally recognized standards. See Article 90, standard u.1.17. 7903.4.4 Location. Solvent distillation units shall be used in locations in accordance with the listing. Units shall not be used in basements.
The 1997 Uniform Fire Code, Volume 1, 10th Edition, PART VIII, STANDARDS Article 90 section 7903.4, (page 1-263) ARTICLE 90 — STANDARDS
u.1. UNDERWRITERS LABORATORIES INC.,
333 Pfingsten Road, Northbrook, IL 60062
u.1.17. UL 2208 Standard for Solvent Distillation Units