SDS

Revision Date: 02/28/2019
SDS_North America - 200000008662
10/18
constituents, including those in the fume or airborne particles, may occur
resulting in potential health hazards. According to the ACGIH, TLVs and
Biological Exposure Indices (BEIs) “represent conditions under which
ACGIH believes that nearly all workers may be repeatedly exposed without
adverse health effects.” The ACGIH further states that the TLV-TWA should
be used as a guide in the control of health hazards and should not be used
to indicate a fine line between safe and dangerous exposures. See Section
10 for information on constituents which have some potential to present
health hazards. Welding consumables and materials being joined may
contain chromium as an unintended trace element. Materials that contain
chromium may produce some amount of hexavalent chromium (CrVI) and
other chromium compounds as a byproduct in the fume. In 2018, the
American Conference of Governmental Industrial Hygienists (ACGIH)
lowered the Threshold Limit Value (TLV) for hexavalent chromium from 50
micrograms per cubic meter of air (50 µg/m³) to 0.2 µg/m³. At these new
limits, CrVI exposures at or above the TLV may be possible in cases where
adequate ventilation is not provided. CrVI compounds are on the IARC and
NTP lists as posing a lung cancer and sinus cancer risk. Workplace
conditions are unique and welding fume exposures levels vary. Workplace
exposure assessments must be conducted by a qualified professional, such
as an industrial hygienist, to determine if exposures are below applicable
limits and to make recommendations when necessary for preventing
overexposures.
Eye/face protection:
Wear helmet, face shield or eye protection with filter lens shade number 2
for torch soldering and 3-4 for torch brazing, and follow the
recommendations as specified in ANSI Z49.1, Section 4, based on your
process details. Shield others by providing appropriate screens and eye
protection.
Skin Protection
Hand Protection:
Wear protective gloves. Suitable gloves can be recommended by the glove
supplier.
Other:
Protective Clothing: Wear hand, head, and body protection which help to
prevent injury from radiation, open flames, hot surfaces, sparks and
electrical shock. See Z49.1. At a minimum, this includes welder's gloves
and a protective face shield when welding, and may include arm protectors,
aprons, hats, shoulder protection, as well as dark substantial clothing when
welding, brazing and soldering. Wear dry gloves free of holes or split
seams. Train the operator not to permit electrically live parts or electrodes
from contacting the skin . . . or clothing or gloves if they are wet. Insulate
yourself from the work piece and ground using dry plywood, rubber mats or
other dry insulation.
Respiratory Protection:
Keep your head out of fumes. Use enough ventilation and local exhaust to
keep fumes and gases from your breathing zone and the general area. An
approved respirator should be used unless exposure assessments are
below applicable exposure limits.
Hygiene measures:
Do not eat, drink or smoke when using the product. Always observe good
personal hygiene measures, such as washing after handling the material
and before eating, drinking, and/or smoking. Routinely wash work clothing
and protective equipment to remove contaminants. Determine the
composition and quantity of fumes and gases to which workers are
exposed by taking an air sample from inside the welder's helmet if worn or
in the worker's breathing zone. Improve ventilation if exposures are not
below limits. See ANSI/AWS F1.1, F1.2, F1.3 and F1.5, available from the
American Welding Society, www.aws.org.