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USP <797> Lab Services

USP <797>Testing                                                                  
Contact Jay Rucker, 1-800-220-3675 Ext. 3422

Let EMSL Analytical, Inc provide microbiological testing services in support of your USP <797> activities.              

>> View USP Sample Report

The new USP guidelines are designed to prevent the improper handling and contamination of sterile compounds for certain drugs or biologic preparations. These items include:

1) Baths for live tissues and organs 4) Tissue implants
2) Opthalmics 5) Aqueous nasal and bronchial inhalations
3) Parenterals 6) Irrigating solutions

The guidelines impact not only the people who prepare the compounded sterile pharmaceuticals (CSPs) but also the areas where these drugs are prepared and stored including commercial and hospital pharmacies, clinics, doctor’s offices and other facilities. USP recommends certain clean area designs, storage specifications, Quality Assurance plans which include environmental monitoring, and employee training programs to accomplish the safe handling of these preparations.

These guidelines specifically address:

1) Microbial contamination USP Sterility Testing
2) Endotoxins USP Bacterial Endotoxins Test
3) Physical or Chemical Contamination
4) Preparation of incorrect Potency Confirmation
5) Incorrect Ingredients

A mistake in any of these 5 areas can cause serious injury or even death.

While a good portion of the USP guidelines deal with improving air quality in these facilities, an equally important goal is to prevent physical contact with and contamination of these preparations during manufacture. Products are manufactured according to risk levels: low, medium or high. Products that are to be injected carry the greatest risk of serious health effects; therefore these products must be manufactured in an area having the lowest risk level for contamination. The lowest risk level required under USP 797 for a critical area is an ISO Class 5 area designation.

The design of Class 5 clean areas for preparation and Class 7 buffer areas, surrounding Class 5 areas, is a requirement. Semi-annual testing for viable bacteria and fungi in air, gloved fingertip, surface contact plates, and non-viable particulates is required for both Class 5 and Class 7 designated areas. These monitoring results trended over time will provide information on any deterioration in air quality and aseptic technique. Generally, this monitoring should be conducted semi-annually. Lab analysis should be conducted by an FDA registered, cGMP compliant laboratory only.

The action levels for microbial and particulate monitoring results are summarized below:


ISO Clean

US Clean Room
(0.5 u/ft3)

> 0.5 u/m3

Air Sampling
400-1000 L*

Gloved Fingertip
Sampling Total

Swab/Surface Contact
Plate Sampling

Endotoxin (frequency depends
on CSP batch #s/storage

Class 5






See USP monographs

Class 7






See USP monographs

Class 8






See USP monographs

*Based on a flow rate of 100 lpm and a sample volume between 400 to 1000 liters.

One important item should be noted. Regardless of the number of CFUs recovered, corrective actions are required if any pathogenic organisms or molds are identified. Therefore when any colonies are seen on the plates, those colonies must be identified by phenotypic or genotypic methods level to determine the presence of pathogens.

For pricing and information, contact EMSL at 1-800-220-3675 (East Coast), 1-866-798-1089 (West Coast) or

USP 797 Overview 

FREE USP Poster for Pharmaceutical and Environmental Professionals

Download 8.5 X 11 PDF

Full list of services provided for USP 797 ( click for details )
Other   USP 797 Environmental Monitoring
  USP Method <797>: Pharmecuetical Compounding - Sterile Preparations
Laboratories providing USP 797 ( click for details )
Atlanta, GA (LAB 07) - NVLAP Lab Code 101048-1Baton Rouge, LA (LAB 25) - NVLAP Lab Code 200375-0Beltsville, MD (LAB 19) - NVLAP Lab Code 200293-0Boston, MA (LAB 13) - NVLAP Lab Code 101147-0Buffalo, NY (LAB 14) - NVLAP Lab Code 200056-0Carle Place, NY (LAB 06) - NVLAP Lab Code 101048-10Charlotte, NC (LAB 41) - NVLAP Lab Code 200841-0Chicago, IL (LAB 26) - NVLAP Lab Code 200399-0Cinnaminson, NJ (LAB List in Description) - NVLAP Lab Code 101048-0Dallas, TX (LAB 11) - NVLAP Lab Code 600111-0Denver, CO (LAB 22) - NVLAP Lab Code 200828-0EMSL Canada - Calgary, AB (LAB 65) - NVLAP Lab Code 500100-0EMSL Canada - Edmonton, AB (LAB 50) - NVLAP Lab Code 600321-0EMSL Canada - Markham, ON (LAB 66) - NVLAP Lab Code 600317-0EMSL Canada - Montreal, QC (LAB 68) - NVLAP Lab Code 201052-0EMSL Canada - Ottawa, ON (LAB 67) - NVLAP Lab Code 201040-0EMSL Canada - Toronto, ON (LAB 55) - NVLAP Lab Code 200877-0EMSL Canada - Vancouver, BC (LAB 69) - NVLAP Lab Code 201068-0Fort Lauderdale, FL (LAB 56) - NVLAP Lab Code 500085-0Houston, TX (LAB 15) - NVLAP Lab Code 102106-0Huntington Beach, CA (LAB 33) - NVLAP Lab Code 101384-0Indianapolis, IN (LAB 16) - NVLAP Lab Code 200188-0Kernersville, NC (LAB 02) - NVLAP Lab Code 102104-0Las Vegas, NV (LAB 31) - NVLAP Lab Code 600140-0Long Island City, NY (LAB 03) - NVLAP Lab Code 101048-9Meriden, CT (LAB 24) - NVLAP Lab Code 200700-0Miami, FL (LAB 17) - NVLAP Lab Code 200204-0Minneapolis, MN (LAB 35) - NVLAP Lab Code 200019-0Ontario, California (San Bernadino County / Inland Empire) (LAB 71) - NVLAP Lab Code 600239-0Orlando, FL (LAB 34) - NVLAP Lab Code 101151-0Phoenix, AZ (LAB 12) - NVLAP Lab Code 200811-0Piscataway, NJ (LAB 05) - NVLAP Lab Code 101048-2Plymouth Meeting, PA (LAB 18) - NVLAP Lab Code 200699-0Raleigh, NC (LAB 29) - NVLAP Lab Code 200671-0Rochester, NY (LAB 53) - NVLAP Lab Code 600183-0San Diego, CA (LAB 43) - NVLAP Lab Code 200855-0San Leandro, CA (LAB 09) - NVLAP Lab Code 101048-3Santa Clara, CA (LAB 47) - NVLAP Lab Code 600318-0Seattle, WA (LAB 51) - NVLAP Lab Code 200613-0South Pasadena, CA (LAB 32) - NVLAP Lab Code 200232-0South Portland, ME (LAB 62) - NVLAP Lab Code 500094-0St. Louis, MO (LAB 39) - NVLAP Lab Code 200742-0Syracuse, NY (LAB 73) - NVLAP Lab Code 600283-0Tampa, FL (LAB 93) - NVLAP Lab Code 600215-0
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