NAICS 5 Digit Industry 54138

Industry 54138

NAICS 5  Digit Industry 54138 – Testing Laboratories

Definition of NAICS 5 Digit Industry 54138: See industry description for NAICS 541380 below.

Industry Description of NAICS Code 541380: 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 for Industry 54138

What codes are similar to this industry that might be more applicable? The cross-reference guide below displays the codes that are similar to industry 54138. Please review to find the most applicable classification.

  • Laboratory testing for the medical profession–are classified in Industry 62151, Medical and Diagnostic Laboratories;
  • Veterinary testing services–are classified in Industry NAICS 541940, Veterinary Services; and
  • Auto emissions testing–are classified in U.S. Industry NAICS 811198, All Other Automotive Repair and Maintenance.

Other Index Entries for NAICS 5-Digit Industry 54138

The North American Industry Classification System contains multiple index entries that are each descriptive of the same code. The bulleted list below shows all applicable index entries (Current and former) that are associated with industry 54138. These index entries further elaborate on the scope of applicable industries that have already been defined at the top of this page.

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

Industry Breakdown for North American Industry Classification System

NAICS codes are broken down by digit. The broadest description starts with the 2 digit sector codes. The 3 digit subsector codes are more specific, then the 4 digit industry group, 5 digit industry (Where you are now), and the most specific is the 6 digit NAICS code. If the code on this page does not describe the industry of the business in question, then select the largest applicable code below. From there, follow through the progression of smaller digits to the larger digits in order to obtain the most specific 6 digit classification.

  • Sector 54: Professional, Scientific, and Technical Services
    • Subsector 541: Professional, Scientific, and Technical Services
      • Industry Group 5413: Architectural, Engineering, and Related Services
        • Industry 54138: Testing Laboratories (Current Page)
          • 6 Digit Code(s) NAICS 541380: Testing Laboratories

Other helpful NAICS Downloads

View the download page for the material below.

NAICS 5 Digit Industry 54138 | Class Codes