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the California Environment Protection Agency;
        (iii)    the European Commission;
        (iv)     the International Standards Organisation;
        (v)       the United States Environment Protection Agency; or
        (vi)     Standards Australia.
Table 1: Reference Methods for Monitoring of Air Toxics
Pollutant                                           Method title                                                                                                                                                                                                                                       Method number

Benzene                                             United States Environmental Protection Agency Compendium Method TO-14A. Determination Of Volatile Organic Compounds (VOCs) In Ambient Air Using Specially Prepared Canisters With Subsequent Analysis By Gas Chromatography – Jan 1999             USEPA –TO14-A
                                                    OR
                                                    United States Environmental Protection Agency Compendium Method TO-15. Determination Of Volatile Organic Compounds In Air Using Specially-Prepared Canisters And Analysed By Gas Chromatography/Mass Spectrometry (GC/MS) – Jan 1999               Note 1
                                                                                                                                                                                                                                                                                                       Note 4
                                                                                                                                                                                                                                                                                                       USEPA –TO15

                                                                                                                                                                                                                                                                                                       Note 1
                                                                                                                                                                                                                                                                                                       Note 4
Formaldehyde                                        United States Environmental Protection Agency Compendium Method TO-11A. Determination of Formaldehyde in Ambient Air Using Adsorbant Cartridge Followed by High Performance Liquid Chromatography (HPLC) [Active Sampling Methodology] –Jan 1999.  USEPA – TO11-A
                                                                                                                                                                                                                                                                                                       Note 1
                                                                                                                                                                                                                                                                                                       Note 2
                                                                                                                                                                                                                                                                                                       Note 3
Benzo(a)pyrene                                      United States Environmental Protection Agency Compendium Method TO-13A.  Determination of Polycyclic Aromatic Hydrocarbons (PAHs) Using Gas Chromatography/Mass Spectrometry (GC/MS) – Jan 1999                                                    USEPA - TO13-A
(as a marker for Polycyclic Aromatic Hydrocarbons)                                                                                                                                                                                                                                                     Note 1
Toluene                                             United States Environmental Protection Agency Compendium Method TO-14A. Determination Of Volatile Organic Compounds (VOCs) In Ambient Air Using Specially Prepared Canisters With Subsequent Analysis By Gas Chromatography – Jan 1999             USEPA –TO14-A
                                                    OR
                                                    United States Environmental Protection Agency Compendium Method TO-15.  Determination Of Volatile Organic Compounds (VOCs) In Air Using Specially-Prepared Canisters And Analysed By Gas Chromatography/Mass Spectrometry (GC/MS) – Jan 1999       Note 1
                                                                                                                                                                                                                                                                                                       Note 4

                                                                                                                                                                                                                                                                                                       USEPA –TO15

                                                                                                                                                                                                                                                                                                       Note 1
                                                                                                                                                                                                                                                                                                       Note 4
Xylenes                                             United States Environmental Protection Agency Compendium Method TO-14A.  Determination Of Volatile Organic Compounds (VOCs) In Ambient Air Using Specially Prepared Canisters With Subsequent Analysis By Gas Chromatography – Jan 1999            USEPA –TO14-A
(as total of ortho, meta and para isomers)          OR
                                                    United States Environmental Protection Agency Compendium Method TO-15. Determination Of Volatile Organic Compounds (VOCs) In Air Using Specially-Prepared Canisters And Analysed By Gas Chromatography/Mass Spectrometry (GC/MS) – Jan 1999        Note 1
                                                                                                                                                                                                                                                                                                       Note 4

                                                                                                                                                                                                                                                                                                       USEPA –TO15

                                                                                                                                                                                                                                                                                                       Note 1
                                                                                                                                                                                                                                                                                                       Note 4

Note 1 – Air toxics are to be measured and reported as individual compounds as, benzene, toluene, formaldehyde, and benzo[a]pyrene.  Xylenes to be reported as the total of the ortho, meta and para isomers.  The units to be used are parts per million by volume for all of these air toxics except benzo(a)pyrene which must be reported as nanograms/cubic metre at 25 degrees Celsius and 101.3 Kilopascals.
Note 2 – As an alternative method to the reference method for formaldehyde the following method may be used:
United States Environmental Protection Agency Compendium Method TO15, Determination Of Volatile Organic Compounds (VOCs) In Air Using Specially-Prepared Canisters And Analysed By Gas Chromatography/Mass Spectrometry