U.S. Census Bureau

2007 NAICS Definitions


541380 Testing Laboratories

This industry comprises establishments primarily engaged in performing physical, chemical, and other analytical testing services, such as acoustics or vibration testing, assaying, biological testing (except medical and veterinary), calibration testing, electrical and electronic testing, geotechnical testing, mechanical testing, nondestructive testing, or thermal testing. The testing may occur in a laboratory or on-site.

Cross-References. Establishments primarily engaged in--


Go to: No change 2002 to 2007 No change 1997 to 2002 2002 Economic Census and other data sources

2007
NAICS		2002
NAICS		1997
NAICS		 Corresponding Index Entries
541380541380541380 Acoustics testing laboratories or services
541380541380541380 Assaying services
541380541380541380 Automobile proving and testing grounds
541380541380541380 Biological (except medical, veterinary) testing laboratories or services
541380541380541380 Calibration and certification testing laboratories or services
541380541380541380 Electrical testing laboratories or services
541380541380541380 Electronic testing laboratories or services
541380541380541380 Environmental testing laboratories or services
541380541380541380 Film badge testing (i.e., radiation testing) laboratories or services
541380541380541380 Fire insurance underwriters' laboratories
541380541380541380 Food testing laboratories or services
541380541380541380 Forensic (except medical) laboratories or services
541380541380541380 Geotechnical testing laboratories or services
541380541380541380 Hydrostatic testing laboratories or services
541380541380541380 Industrial testing laboratories or services
541380541380541380 Laboratory testing (except medical, veterinary) services
541380541380541380 Mechanical testing laboratories or services
541380541380541380 Metallurgical testing laboratories or services
541380541380541380 Non-destructive testing laboratories or services
541380541380541380 Pollution testing (except automotive emissions testing) services
541380541380541380 Product testing laboratories or services
541380541380541380 Radiation dosimetry (i.e., radiation testing) laboratories or services
541380541380541380 Radiation testing laboratories or services
541380541380541380 Radiographic testing laboratories or services
541380541380541380 Radiographing welded joints on pipes and fittings
541380541380541380 Radiography inspection services
541380541380541380 Radon testing laboratories or services
541380541380541380 Seed testing laboratories or services
541380541380541380 Soil testing laboratories or services
541380541380541380 Testing laboratories (except medical, veterinary)
541380541380541380 Thermal testing laboratories or services
541380541380541380 Vibration testing laboratories or services
541380541380541380 X-ray inspection services