845	TESTING APPARATUS AND INSTRUMENTS (NOT FOR ELECTRICAL OR ELECTRONIC MEASUREMENTS)
84502  *	Aerodynamic Testing Devices (Laboratory Type) and Wind Tunnels
84505  *	Compression and Flexure Testing Apparatus
84506  *	Concrete Testing Apparatus and Supplies
84507  *	Corrosion Testing
84510  *	Fabric Testing Apparatus
84514  *	Fiber Testing Apparatus (Except Flammability)
84519  *	Flash Point Tester (Closed and Open Cup)
84523  *	Flammability Testing Equipment (For Apparel, Construction Materials,
 	Fabrics, etc.)
84524  *	Food Testing Apparatus (For Fat, Fiber, Moisture Content, etc.)
84525  *	Hydrostatic Pressure Testers: Dead Weight Testers, Hydrostatic Test Pumps, etc.
84526  *	Insulation Resistance Testers
84527  *	LP Gas Tester
84534  *	Metallurgical Physical QC Testers
84535  *	Milk Testing Equipment (For Dairy Thermometers See 245-87)
84545  *	Moisture Testers (Not for Soils)
84546  *	Moisture-Density Tester (For Soils): Nuclear Moisture-Density Gauges, etc.
84550  *	Petroleum Production Test Equipment (Specialized): 
 	Retorts (High-Temperature), Rheometers, Well Testers (For Gas, Liquid and
 	Water Production), etc.
84551  *	Petroleum Test Equipment and Supplies (To Determine Recyclability)
84554  *	Precision Linear Measuring Instruments: Calipers and Vernier Calipers, 
 	Dry Film Thickness Gauges, Dial And Standard Micrometers, etc.
84562  *	Radioactive Material for Testing Radioactivity
84563  *	Road Building Materials Testers and Accessories
84570  *	Seed Testers
84571  *	Strength of Materials Testing Apparatus (For Metals, Plastics, Wood, etc.):
 	Fatigue Resistance, Hardness, Internal Flaws, etc.
84581  *	Soil Testing Apparatus (For Determining Permeability, Resistivity, Soil Chemistry, etc.)
84586  *	Test Guage: Low Vacuum, Pressure, etc.
84587  *	Test Equipment For Hazardous Material (Lead Content, etc.)
84595  *	Viscosity Testers (Viscometers and Viscosimeters)
84597  *	Volume Standards: Liter Provers, etc.