9
CLEANING AND STORAGE
Clean the welding shield with mild soap and lukewarm water. Do not use solvents. Clean the welding filter with a
clean, lint-free tissue or cloth. Do not immerse ADFs in water or spray directly with liquids.
Store equipment in a clean dry and dust-free environment at room temperature.
Table 1. Recommended Guide for Shade Numbers
(Adapted from ANSI Z49.1-1999)
Operation
Electrode
diameter
inches
Arc
current,
amps
Minimum
Protective
Shade
Recommended
Shade
Number
< 3
< 60
7
---
3-5
60-160
8
10
5-8
160-250
10
12
Shielded
metal arc
> 8
250-550
11
14
< 60
7
---
60-160
10
11
160-250
10
12
Gas-
metal-arc
welding
250-500
10
14
< 50
8
10
50-150
8
12
Gas-
tungsten-
arc
150-500
10
14
< 500
10
12
Air-
carbon-
arc
cutting
500-
1000
11
14
< 20
6
6-8
20-100
8
10
100-400
10
12
Plasma-
arc
welding
400-800
11
14
< 300
8
9
300-400
9
12
Plasma-
arc cutting
400-800
10
14
Torch
brazing
3-4
Torch
soldering
2
Carbon
arc
welding
14
Plate thickness, inches
< 1/8
4-5
1/8-1/2
5-6
Gas
welding
> 1/2
6-8
< 1
3-4
1-6
4-5
Oxygen
cutting
> 6
5-6
