A H Knight Labs

A H Knight Labs is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Chemists
• Inspection Services

North American Industry Classification System (NAICS) Categories:

• Other Scientific And Technical Consulting Services > Scientific Services > Chemists
• All Other Business Support Services > Inspection & Testing Services

Standard Industry Classification (SIC) Categories:

• Business Services, Nec > Inspection & Testing Services
• Services, Nec > Scientific Services > Chemists