SAFETY BRIEF: PPE, BY THE NUMBERS Cambridge MA

The following contains industrial and manufacturing information you should know about PPE by the numbers. Read on if you or a loved one is interested in wood maintenance, safety, and news in Cambridge.

Local Companies

Nassau Tape Inc
(617) 661-0970
121 1st St
Cambridge, MA
Master Associates
(781) 740-1666
11 Whiting
Hingham, MA
New England Rep Enterprises Mfrs Rep
(508) 788-0900
70 Nicholas Rd
Framingham, MA
Process Control Solutions
(508) 351-6008
386 W Main St
Northborough, MA
Domestic Industries
(508) 695-1284
30 W Bacon St
Plainville, MA
Avtek
(508) 588-2371
1265 Belmont St
Brockton, MA
Greenberg Dan & Judy
(781) 407-0110
26 Dartmouth St
Westwood, MA
P R M Sales
(781) 593-2697
1 Market St
Lynn, MA
Madlar Marketing Inc
(781) 449-8024
210 Highland Ave
Needham, MA
Lacerta Group
(508) 339-3312
360 Forbes Blvd
Mansfield, MA

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This month, Fabricating & Metalworking publishes a brief reference for some of the more intricate personal-protective-equipment requirements named throughout the OSHA regulations: namely, specific guidelines for selecting welding lenses, laser safety glass for goggles and, for ear protection, permissible noise exposure levels. (Source: OSHA's educational document on PPE, 3151-12R, 2003.)

Selecting Laser Safety Glass
Intensity, CW maximum power density (watts/cm2)Attenuation
Opticaldensity (O.D.)Attenuation factor
Source: 29 CFR 1926.102(b)(2)
10-25105
10-16106
1.07107
10.08108
Permissible Noise Exposures
Duration per day, in hoursSound level in dB*
890
692
495
397
2100
1 1/2102
1105
1/2110
1/4 or less115

Filter Lenses for Protection against Radiant Energy
OperationsElectrode size in 1/32 inch (0.8 mm)Arc currentMinimum*protective shade
Shielded metalarc welding< 3
3 - 5
5-8
> 8
< 60
60 - 160
160 - 250
250 - 550
7
8
10
11
Gas metal arc welding and flux cored arc welding< 60
60 - 160
160 - 250
250 - 500
7
10
10
10
Gas tungsten arc welding< 50
50 - 150
150 - 500
8
8
10
Air carbon arc cutting(light)
(heavy)
< 500
500 - 1,000
10
11
Plasma arc welding< 20
20 - 100
100 - 400
400 - 800
6
8
10
11
Plasma arc cutting(light)**
(medium)**
(heavy)**
< 300
300 - 400
400 - 800
8
9
10
Torch brazing3
Torch soldering2
Carbon arc welding14
OperationPlate thickness (inch)Plate thickness (mm)Minimum* protective shade
Note: The data on this page are for informational purposes only and does not represent an official interpretation of safety rules and regulations.
Gas welding: Light
Medium
Heavy
< 1/8
1/8 - 1/2
> 1/2
< 3.2
3.2 - 12.7
> 12.7
4
5
6
Oxygen cutting:Light
Medium
Heavy
< 1
1 - 6
> 6
< 25
25 - 150
> 150
3
4
5

Featured Local Company

Summit Mfg. Corp.

401-723-6272
248 Pine Street
Pawtucket, RI

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Dates: 4/21/2010 - 4/22/2010
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