Introduction
| WASP | EnACT | AIMS
| RICE | UK
MMMF | NO2 Network
| Laboratory Quality Control Materials
Proficiency Testing - Workplace Analysis Scheme for Proficiency (WASP)
WASP Round 78 Summary (PDF) - click here to download

WASP
tests the performance of laboratories measuring exposure to hazardous
substances in the workplace air such as lead, benzene, isocyanates
or respirable quartz. It was established in 1988 and is one of the
largest schemes of its kind with over 200 laboratories participating
worldwide.
Analytes in the scheme
Analyte |
Loading Range µg |
Medium |
Inorganics |
Lead |
15 - 150 |
3 substances provided together on a single
membrane or glass fibre filter |
Cadmium |
5 - 50 |
Chromium |
50 - 500 |
Chromium, Nickel, Iron and Manganese |
5 - 200* |
Welding fume on membrane filters |
Quartz |
60 - 460 |
PVC (GLA5000) 25mm |
Analyte |
Loading Range µg |
Medium |
Organics - Chemical Desorption |
Benzene |
10 - 400 |
4 substances provided together on a single
glass tube packed with charcoal (also available for thermal
desorption - see below) |
Toluene |
50 - 2500 |
o/m/p-Xylene |
50 - 5000 |
Ethyl Benzene |
20 - 400 |
1,1,1-Trichloroethane |
250 - 12000 |
3 substances provided together on a single
glass tube packed with charcoal |
Trichloroethene |
80 - 7000 |
Tetrachloroethene |
100 - 4000 |
Isocyanate |
0.2 - 1 |
Glass fibre filter with 2-MP derivative |
Formaldehyde |
3 - 60 |
Glass fibre filter with 2,4,DNPH derivative |
Analyte |
Loading Range µg |
Medium |
| Organics - Thermal Desorption |
Benzene |
0.5 - 15 |
4 substances provided together on a single
Tenax TA tube (also available for solvent desorption - see
above) at occupational levels |
Toluene |
2 - 200 |
o/m/p-Xylene |
2 - 200 |
Ethyl Benzene |
0.5 - 50 |
* Indicative range only
Operation of the scheme
The samples are prepared on various sampling media dependent on
the analyte (see table). The solvent samples are provided in two
loading ranges so that participants can select either chemical or
thermal desorption methods.
Four samples are sent to participants every three months for each
of the analyte categories. Laboratories have one month to analyse
the samples and report the results. Performance is classified as
Category 1 (good), Category 2 (satisfactory) or Category 3 (unsatisfactory).
WASP Event Schedule 2008-2009
Conventional Analyte Group Schedule
Round Number |
Samples Despatched
(Week Commencing) |
Results Deadline |
Reports Despatched |
76 |
|
15 February 2008 |
|
77 |
|
6 June 2008 |
|
78 |
|
8 August 2008 |
|
79 |
|
7 November 2008 |
|
80 |
|
20 February 2009 |
|
- Indicative dispatch dates. Participants will be notified by email of any changes if dispatches do not occur within stated week
- HSL uses Royal Mail to dispatch WASP samples and reports. The anticipated transit times are
- 2 – 4 days for UK customers
- 4 – 6 days for European customers
- 5 – 12 days for Rest of World customers
Gravimetric Proficiency Testing Schedule
Round Number |
Filters Required by HSL |
Samples Despatched (Week Commencing) |
Results Due @ HSL |
7 |
16 May 2008 |
16 June 2008 |
8 August 2008 |
8 |
3 October 2008 |
3 November 2008 |
19 December 2008 |
- Indicative dispatch dates. Participants will be notified by email of any changes if dispatches do not occur within stated week
- Participant reports will be dispatched 3 weeks after result due date
- HSL uses Royal Mail to dispatch WASP samples and reports. The anticipated transit times are
- 2 – 4 days for UK customers
- 4 – 6 days for European customers
- 5 – 12 days for Rest of World customers
WASP Round 79 Report Forms
Samples for Round 79 of the WASP scheme will be dispatched on 29 September 2008. Report forms are available to download:
WASP Round 79 Report Forms - please click here to download
Participants experiencing problems with orders, registration details,
and despatch please use
our online enquiry form, or
email: proficiency.testing@hsl.gov.uk.
Further information
More information on the scheme is available in the WASP
Information for Participants booklet (PDF format).
To join or to make an enquiry please use our online enquiry
form, or contact:
Proficiency Testing Administrator
Health and Safety Laboratory
Harpur Hill
Buxton
Derbyshire
SK17 9JN
Tel: 01298 218553
Fax: 01298 218572
Email: proficiency.testing@hsl.gov.uk
WASP DVD
In order to provide technical guidance to laboratories, HSL has
produced a DVD. This is based on the procedures in HSE's series
'Methods for
the Determination of Hazardous Substances' and 'ISO' publications,
and gives practical tips about how to achieve accurate results.
It is assumed that the viewer has some previous knowledge of the
techniques and analytical methods used to measure hazardous substances
in air.
The topics covered include:
- The analysis of metals on filter analysis using inductively
coupled plasma - atomic absorption spectrometry (ICP-AES);
- The analysis of chemicals on charcoal by solvent desorption
and gas chromatography (GC) analysis;
- The analysis of chemicals on Tenax for thermal desorption and
GC analysis;
- The analysis of isocyanate derivatives on glass fibre filters
using High Performance Liquid Chromatography (HPLC).
An extract from the DVD can be downloaded by clicking here
(To view the dvd you need Windows Media Player. If you do not have Windows Media Player installed please select the link below which provides access to the free software player for PC, MAC and other platforms).
www.microsoft.com/windows/windowsmedia/download/default.asp
To
purchase a copy of the full DVD please contact:
Proficiency Testing Administrator
Health and Safety Laboratory
Harpur Hill
Buxton
Derbyshire
SK17 9JN
Tel: 01298 218553
Fax: 01298 218572
Email: proficiency.testing@hsl.gov.uk
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