Hard-
Surfacing,
Building
Fusion
Welding
Carbon
Welding Non-Ferrous Metals
Heating
& Heat
Treating
Braze
Welding
Welding Cast Iron Welding Ferrous Metals
Brazing
&
Soldering
Equipment
Set-Up
Operation
Equipment
For
OXY-Acet
Structure
of
Steel
Mechanical
Properties
of Metals
Oxygen
&
Acetylene
OXY-Acet
Flame
Physical
Properties
of Metals
How Steels
Are
Classified
Expansion
&
Contraction
Prep
For
Welding
OXY-Acet
Welding
& Cutting
Safety
Practices
Manual
Cutting
Oxygen
Cutting By
Machine
Appendices
Testing
&
Inspecting
49 HEALTH HAZARD REFERENCES Some authoritative sources on health hazard effects include the following: 1.   ”Documentation of the Threshold Limit Values for Substances in Work Room Air”, American Conference of Governmental Industrial Hygienists, P. O. Box 1937, Cincinnati, Ohio45201 2 ”The Welding Environment”, (1973), American Welding Society, P. O. Box 351040, Miami, Florida 33135 3.   ”Encyclopedia of Occupational Health and Safety”, Vols. I & II, (1972) International Labor Office, Geneva, Switzerland 4.   ”Patty’s Industrial Hygiene and Toxicology”, John Wiley & Sons, New York 5.   ”Safety & Health in Arc Welding and Gas Welding and Cutting”, NIOSH Publication No. 78-138, (1978.) U. S. Department of Health, Education and Welfare, Public Health Service, Center for Disease Control, Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402 6.   ”Threshold Limit Values for Chemical Substances and Physical Agents in the Workroom Environment”, (latest Edition), American Conference of Governmental Industrial Hygienists, P. O. Box 1937, Cincinnati, Ohio 45201. 7.   ”Dangerous Properties of Industrial Materials”, N. Irving Sax, Sixth Edition (1984), Van Nostrand Reinhold Co. Continued on next page...