Gas Chromatography (GC)
Refractometer (REF)
Suggested CPT Code(s)
New York State Approval Status


Turnaround Time

1 days

Test Includes
1 Specific Gravity Refractometer (REF) Biological Marker
2 Phenol - Total Gas Chromatography (GC) mg/L 10 Environmental/Occupation Toxin
3 Phenol - Total (Specific Gravity corrected) Gas Chromatography (GC) mg/L 10

Compliance Statement
This test was developed and its performance characteristics determined by NMS Labs. It has not been cleared or approved by the US Food and Drug Administration.
Sample Type
Requested Volume
2 mL
Minimum Volume
0.6 mL
Special Handling
Notify NMS Labs prior to submitting sample(s).

Collect sample at end of shift. Samples must include collection date/time and be received at NMS Labs within 48 hrs of collection.
Samples preserved with Benzoic Acid are unsuitable for analysis. Preservative-free Urine samples are recommended.
Sample Container
Plastic container (preservative-free)

Additional Collection Instructions

Transport Temperature
Light Protection
Not Required
Rejection Criteria
Received Room Temperature.

Rejection criteria pertain to clinical sample submissions only.

Room Temperature: 4 day(s)
Refrigerated: 7 day(s)
Frozen (-20 °C): 6 month(s)

The CPT Codes provided in this document are based on AMA Guidelines and are for informational purposes only. NMS Labs Does not assume responsibility for billing errors due to Reliance on the CPT Codes listed in this document.

*The information contained in this document represents database configurations, as they will appear on the effective date listed above.