Codes, standards and regulations are developed, maintained, and promoted by regulatory agencies, engineering societies, and trade organizations

Calibration standards and reference sources include any source that can provide a reference for the calibration of an instrument or comparison of a material or component

Biotech and pharmaceutical manufacturing services manufacture active pharmaceutical ingredients, sterilize biomedical components or materials, validate processes or packaging, and formulate drug or medicinal preparations on a contract basis.

Chemical and material processing services modify or produce chemicals, powders, foods, minerals, rubber, plastics, adhesives, and other bulk materials on a contractual, toll or fee basis.

Control valves or proportional valves are power-operated devices used to modify fluid flow or pressure rate in a process system.

Chemical additives and agents include a wide range of materials added to polymer resins, paints and coatings, or adhesives to modify specific processing or end-use properties.

Industrial fluids are used for heat transfer, lubrication, power transmission and other specialized applications.