3M WS Series - Cleaning and Storage

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