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Utah UST Analyses Table
      

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Substance or Product Type

Analytes Required

Approved Methods

Sample Preparation Required

Required Instrumentation

Gasoline

Total Petroleum Hydrocarbons (purgeable TPH-GRO C6-C10)

8260B or 8015B

Purge and Trap2

GC/MS + P&T2 or GC + P&T2

Benzene, Toluene, Ethylbenzene, Xylenes, Naphthalene, (BTEXN) & MTBE

8260B or 8021B

Purge and Trap2

GC/MS + P&T2 or GC/PID + P&T2

Diesel

Total Petroleum Hydrocarbons (extractable TPH-DRO C10-C28)

8015B

Modified Utah Extraction

GC

Benzene, Toluene, Ethylbenzene, Xylenes, & Naphthalene

8260B or 8021B

Purge and Trap2

GC/MS + P&T2 or GC/PID + P&T2

Used Oil

Oil and Grease (O&G) or

Total Recoverable Petroleum Hydrocarbons (TRPH)

1664A (for O&G)

1664A-SGT (for TRPH)

General extraction

Classic chemistry equipment

Benzene, Toluene, Ethylbenzene, Xylenes, Naphthalene, (BTEXN) & MTBE; and Halogenated Volatile Organic Compounds (VOX)

8260B or 8021B

Purge and Trap2

GC/MS + P&T2 or GC/PID/HECD3 + P&T3

New Oil

Oil and Grease (O&G) or

Total Recoverable Petroleum Hydrocarbons (TRPH)

1664A (for O&G)

1664A-SGT (for TRPH)

General extraction

Classic chemistry equipment

Other

Type of analyses will be based upon the substance or product stored, and as approved by the Executive Secretary (UST)

Method will be based upon the substance or product type.

    

Unknown

Total Petroleum Hydrocarbons (purgeable TPH-GRO C6-C10)

8260B or 8015B

Purge and Trap2

GC/MS + P&T2 or GC + P&T2

Total Petroleum Hydrocarbons (purgeable TPH-DRO C10-C28)

8015B

Modified Utah Extraction

GC

Oil and Grease (O&G) or

Total Recoverable Petroleum Hydrocarbons (TRPH)

1664A (for O&G)

1664A-SGT (for TRPH)

General extraction

Classic chemistry equipment

Benzene, Toluene, Ethylbenzene, Xylenes, Naphthalene, (BTEXN); and Halogenated Volatile Organic Compounds (VOX)

8260B or 8021B

Purge and Trap2

GC/MS + P&T2 or GC/PID/HECD3 + P&T2

1 The first three columns of this table were derived from Utah regulations by AWAL. The last two columns were created from method requirements and/or Utah DEQ requirements by AWAL.

2 Purge and trap (P&T) analysis required for this analysis. Extraction method (shake and shoot) is not acceptable.

3 HECD is an electrolytic conductivity detector and is required for halogenated compounds by method 8021B. Use of only FID and/or PID is not acceptable.

It must be noted that both TPH-GRO (C6-C10) and TPG-DRO (C10-C28) cannot be analyzed by performing one analysis. Both purge and trap, and extraction are required to perform both of these analyses resulting in two separate analytical instrument runs. TPH-GRO results from analyses performed without purge and trap may not be accepted by Utah and may result in resampling and reanalysis.

 
Last modified: December 15, 2007