Beamline Operation HC1 APS Base Low Temperatures HC2 Cryogenic Systems High Temperatures HC3.1 Electric Furnace HC3.2 Optical Furnace HC3.3 Heater HC3.4 Other High Temperature Lasers HC4.2 Laser, Class 2 HC4.3a Laser, 3R/Class 3a HC4.3b Laser, Class 3b HC4.4 Laser, Class 4 High Pressures HC5.1 High Pressure, DAC HC5.2 High Pressure, LVP HC5.3 High Pressure Vessels HC5.4 High Pressure Comp. Gas Chemicals HC6.0 Chemicals, General HC6.1 Chemicals, Particularly Hazardous Substance HC6.2 Chemicals, Corrosive HC6.3 Chemicals, Toxic HC6.4 Chemicals, Flammable HC6.5 Chemicals, Oxidizer HC6.6 Chemicals, Other HC6.7 Chemicals, Explosive/Energetic Materials Biosafety HC7.1 Biosafety Level 1 HC7.2 Biosafety Level 2 HC7.3 Biosafety Level 3 HC7.4 Biosafety Level 4 HC7.5 Human Tissue/Material Radioactivity HC8.1 Radioactive Samples HC8.2 Radioactive Sealed Source HC8.3 X-Ray Generator Magnets HC9 Magnets Non-Ionizing Radiation HC10.1 RF and Microwave HC10.2 UV Light Hydrogen HC11 Hydrogen Electronics HC12 Electrical Equipment HC13 High Voltage Nanomaterials HC14.1 Nanomaterials - Solid Matrix HC14.2 Nanomaterials - Liquid Suspension HC14.3 Nanomaterials - Unbound Other HC15.1 Other HC15.2 USDA Regulated Soil Samples HC15.3 Beamline Gloveboxes Direct questions about the content to esaf_system@aps.anl.gov