54138 Testing laboratories

What code 54138 includes

This industry comprises establishments primarily engaged in providing physical, chemical and other analytical testing services. The testing activities may occur in a laboratory or on-site.

Classification Hierarchy

• 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