Free air quality test service
October 1st 2009 Nederman has launched a
new free test service to
provide accurate
measurement of airborne
contamination.
The test can measure many
types of airborne
contamination including
weld fume, vehicle exhaust,
oil mist and dust of varied
particle sizes (1 to
10microns). The process is
comprehensive, involving
capture and collation of
multiple data samples
through work cycles and
across operating zones.
Overall results are then
compared to the relevant
long term (8-hour time
weight average – 'TWA') or
short term (15 minute)
Workplace Exposure Limits
(WELs) to identify if further
action is needed.
While HSE Guidance
Note EH54 specifies an 8
hour TWA WEL of 5mg/m3
for particulate welding fume,
it's a ceiling level that's
dramatically reduced by the
presence of more harmful
elements in the consumable
and it can also be impacted
by the welding method.
Nederman considers all
these factors to establish
appropriate test parameters.
If limits are exceeded, there's
the option of commissioning
more detailed analysis of
component concentrations
or implementing improved
local exhaust ventilation
(LEV). More articles from Nederman Limited: | 
