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� Do not weld in locations near degreasing, cleaning, or spraying operations. The heat and rays
of the arc can react with vapors to form highly toxic and irritating gases.
� Do not weld on coated metals, such as galvanized, lead, or cadmium plated steel, unless the
coating is removed from the weld area, the area is well ventilated, and while wearing an air-
supplied respirator. The coatings and any metals containing these elements can give off toxic
fumes if welded.
1-3.
California Proposition 65 Warnings
WARNING – Cancer and Reproductive Harm — www.P65Warnings.ca.gov.
1-4.
Lens Shade Selection Table
Process
Shielded Metal
Arc
Welding
(SMAW)
Gas Metal Arc
Welding
(GMAW)
Flux Cored Arc
Welding (FCAW)
Gas Tungsten
Arc
Welding (TIG)
Air Carbon Arc
Cutting (CAC-A)
Plasma Arc Cut-
ting (PAC)
Plasma Arc
Welding (PAW)
Reference: ANSI Z49.1:2012
*Start with a shade that is too dark to see the weld zone. Then, go to a lighter shade which gives
a sufficient view of the weld zone without going below the minimum.
Electrode Size
in. (mm)
Less than 3/32 (2.4)
3/32-5/32 (2.4-4.0)
5/32-1/4 (4.0-6.4)
More than 1/4 (6.4)
Light
Heavy
Minimum Pro-
Arc Current in
tective Shade
Amperes
Less than 60
60–160
160–250
250–550
Less than 60
60–160
160–250
250–500
Less than 50
50–150
150–500
Less than 500
500–1000
Less than 20
20–40
40–60
60–80
80–300
300–400
400–800
Less than 20
20–100
100–400
400–800
Suggested
Shade No.
No.
(Comfort)*
7
- -
8
10
10
12
11
14
7
- -
10
11
10
12
10
14
8
10
8
12
10
14
10
12
11
14
4
4
5
5
6
6
8
8
8
9
9
12
10
14
6
6–8
8
10
10
12
11
14
OM-255503 Page 3