AWS/ASME SFA 5.4

SECTION 2: Hazards identification

OSHA Recommended use MMA Welding Supplier Afrox Welding fumes and gases cannot be classified simply. The composition and quality of both are dependant upon the metal being welded, the Company Identification African Oxygen Limited Process, procedure and electrode used. Most fume ingredients 23 Webber Street are present as complex oxides and compounds and not as pure Johannesburg, 2001 metals. Tel. No: (011) 490-0400 Other conditions which also influence the composition and quality of the fumes and gases to which workers may be Fax No: (011) 490-0506 exposed include: coatings On the metal being welded (such as paint, plating or EMERGENCY NUMBER 0860111185 or (011) 873 4382 galvanizing), the number of welders and the volume of the (24 hours) work area, the quality and amount of ventilation, the position of the welder’s head with respect to the fume plume, as well as the 2 DETAILS OF COMPOSITION presence of contaminants in the atmosphere ( such as chlorinated hydrocarbon vapors from cleaning and degreasing activities). When the electrode is consumed, the fume and gas This section covers the hazardous materials from which this decomposition products generated are different in percent and product is manufactured. The fumes and gases produced during form from the ingredients listed in Section 2. Decomposition welding with normal use of this product are also addressed in products of normal operation include those originating Section 5. The terms “hazardous” in this section should be interpreted as a term required and defined in OSHA Hazard Communication Standard (29 CFR Part 1910.1200). HAZARDOUS EXPOSURE LIMIT (mg/m 3) from the volatilization, reaction or oxidation of the % WEIGHT CAS NO. materials shown in Section 2, plus those from the base metal INGREDIENTS OSHA PEL ACGIH TLV and coating, ect., as noted above. Reasonably expected 5 R* 3 R* constituents of the fume would include; IRON+ 65-90 7439-89-6 10(Oxide Fume) 5(Oxide Fume) {A4} Primarily complex iron oxides and fluorides. Secondarily