List of TO Methods   Description   Types of Compounds Determined       TO-1 Tenax GC Adsorption and GC/MS or GC/FID Analysis Volatile, nonpolar organics (e.g., aromatic hydrocarbons, chlorinated hydrocarbons) having boiling points in the range of 80°C to 200°C. TO-2 Carbon Molecular Sieve Adsorption and GC/MS or GC/FID Analysis Highly volatile, nonpolar organics (e.g., vinyl chloride, vinylidene chloride, benzene, toluene) having boiling points in the range of –15°C to 120°C. TO-14 Specially-Prepared Canister and GC/FID/ECD or GC/MS Detection Volatile, non-polar organics (e.g., toluene, benzene, chlorobenzene). TO-15 Specially-Prepared Canister and GC/MS Analysis Volatile, polar and non-polar organics (e.g., methanol, benzene, xylene, nitrobenzene). TO-17 Multi-Bed Adsorbent Tube Followed by GC/MS Volatile, polar and non-polar organics (e.g., alcohols, ketones, benzene, toluene, o-xylene, chlorobenzene). MADEP Air-Phase Petroleum Method     APH Summa®  Passivated Canister; Sampling and C/MS Analysis Air-phase petroleum hydrocarbon fraction analysis. List of IP Methods     IP-1A Stainless Steel Canister Volatile organics (e.g., aromatic hydrocarbons, chlorinated hydrocarbons) having boiling points in the range of 80°C to 200°C. IP-1B Solid Adsorbent Tubes Same as above.

Table 9: List of sampling and analytical methods applicable to indoor air (adopted and modified from U.S.-EPA, 1984; MADEP, 1999; U.S.-EPA, 1990; MADEP, 2002 [55,58,60,61]).