Applies to establishments engaged in operating laboratories which provide analytical, testing, and quality control services. This classification includes laboratories that experiment and provide a variety of tests and analysis for other customers' products and/or materials. Generally, the employees include chemists, engineers and other scientists and research aides who use a variety of chemicals and sophisticated scientific equipment and machinery for the testing and analysis process. This classification includes the quality control inspection of fish and agricultural products. Work may be performed at the laboratory or at the customer's location.

This classification excludes outside X-raying and drilling which is to be reported separately in the classification applicable to the X-raying or drilling being performed.

Special note: This classification does not apply to establishments that operate a laboratory in connection with testing or inspecting their own products/materials, which is to be included in the basic classification applicable to the business. For example, a laboratory to test and analyze the assembled fly rod or the composition of the graphite rod when operated by a fly rod manufacturer, is included within classification 3510.

Applies to establishments engaged in operating medical laboratories. Services include, but are not limited to, providing data on which to base decisions concerning the detection, diagnosis and treatment of disease and to evaluate a patient's response to treatment. Laboratory personnel perform analytical tests on the tissues and fluids of the human body, detect parasites, bacteria, viruses, drugs, and poisons; and interpret cell and tissue abnormalities. This classification includes employment-related drug testing for others.

Special note: This classification does not apply to establishments that operate a laboratory in connection with testing or analyzing services, which is to be included in the basic classification applicable to the business. For example, a hospital which also operates a laboratory as part of their medical facility to provide an analysis of patient tests and samples is included within classification 6105.

Applies to establishments engaged in operating blood banks. Generally, these types of facilities allow individuals to come in and donate, save, or sell their blood for a fee. Medical and laboratory personnel perform routine laboratory tasks including extracting blood from individuals, testing and analyzing blood, processing whole blood and blood components, and storing blood in refrigerated storage rooms. This classification also includes services offered by bloodmobiles.

Special note: This classification does not apply to establishments that operate a laboratory in connection with testing or analyzing services which is to be included in the basic classification applicable to the business. For example, a hospital which also operates a laboratory as part of their medical facility to provide an analysis of patient tests and samples is included within classification 6105.

Applies to establishments engaged in operating assaying laboratories which examine, test, and analyze the quantitative or qualitative substance of material such as a metal, ore or drug. This classification includes a variety of laboratories who experiment and provide tests and analysis of products and/or materials including specialty laboratories such as, but not limited to, chemical, drugs, food products, rock formation and minerals, fossils and bones, and soil and toxic materials. Generally, the employees include chemists, engineers, and other scientists and research aides who use a variety of chemical and sophisticated equipment and machinery for the testing and analysis process.

Special note: This classification does not apply to establishments that operate a laboratory in connection with testing or inspecting their own products/materials which is to be assigned to the basic classification applicable to the business. For example, a mining operation which also operates a laboratory to determine the composition of rock and minerals excavated from the mine is included as part of the mining classification.