STACKS

STACKS
Issue No 1
Issue Date 18/11/2013
Sample Preparation Instructions for Stack Emissions Proficiency Test
SE022 – Trial Sample J
General Instructions
Sample Storage
All samples should be stored at ambient temperature 20(±5)oC from the time of arrival at your
laboratory.
Sample Preparation
All samples should be equilibrated at room temperature 20(±5)
20( oC before any analyses are
performed.
Sample Analysis
Samples should be analysed by the normal method or methods used by your laboratory. Replicate
determinations can be made if this is normal laboratory procedure although only one result, per filter,
per method can be submitted to LGC Standards Proficiency Testing for statistical analysis and
reporting on laboratory performance.
Stack emissions samples should be treated like any other samples and all normal quality control
procedures should be adopted.
Sample J – Dust Analysis on Filters (by Gravimetry)
Materials Supplied
•
2 x Quartz filters containing solids for dust analysis (prepared in accordance with ISO 13284-1)
13284
Preparation
•
On receipt of the samples, dry each numbered filter and weigh by your routine method.
method Record
the weight obtained as the initial/tare weight of the filter.
•
Return the filters to LGC in accordance with the instructions provided below.
below A pre-paid courier
air waybill is provided for you to return the samples. The filters will then be spiked with a mass
surrogate at LGC and returned to your laboratory
•
On receipt of the returned filters, dry and reweigh using the same analytical procedure as that
used for obtaining the initial/tare weight.
•
Report results through PORTAL for the following analytes:
•
Initial weight (mg); the weight of the filter at first weighing
•
Returned
urned filter weight (mg); the weight of the filter on weighing after spiking by LGC
•
Calculated difference (mg); the difference between the initial weight and returned
filter weight
Note: The initial and returned filter weights will not be assessed but will be provided for
information only.
LGC Standards Proficiency Testing, 1 Chamberhall Business Park, Chamberhall Green, Bury, BL9 0AP, UK.
Telephone: + 44 (0) 161 762 2500, Fax: + 44 (0) 161 762 2501
E-mail:
mail: stacks@lgcpt.com, Web: www.lgcpt.com
Page 1 of 2
STACKS
Issue No 1
Issue Date 18/11/2013
Sample Preparation Instructions for Stack Emissions Proficiency Test
SE022 – Trial Sample J
Returning the samples to LGC
Provided along with the samples is an
a empty box and a DHL bag for you to use to return the samples
to LGC once you have weighed them.
them Please follow these instructions:
•
•
•
Pack the samples in the pre-made
pre
box and seal the box with tape.
Remove the air waybill from the front pouch of the DHL bag, sign and date section 7, then
return to the front pouch,, ensuring the LGC address is clearly visible.
Place the sealed box containing the samples inside the DHL bag and seal the bag.
bag
•
For participants outside of the EU only:: you have been sent customs documentation by
email. Please print this documentation on your company letter head.
head. Follow the
instructions above and then fold and place the customs documents in the front pouch of the
DHL bag, behind the air waybill.
•
•
Arrange a collection with your local DHL office using the contact telephone numbers below.
Please note that the LGC payer account number to quote is:
• 130347668: for UK shipments
• 967765408: for shipments
hipments returning from outside the UK
Company
Australia
Austria
France
Germany
Italy
Lithuania
Poland
Portugal
Romania
Serbia
Spain
Sweden
UK
Phone no
131406
0820550505
0820202525
+49 1806345300-3
199199345
+370 52360700
42 6345100
707 505606
021 2221777
+381 113105500
+34 902123030
+46 771345345
+44 8442480844
•
The samples must be returned to LGC Standards Bury before 6th December 2013.
2013
•
If you have any questions or problems, please do not hesitate to contact us at:
stacks@lgcpt.com
LGC Standards Proficiency Testing, 1 Chamberhall Business Park, Chamberhall Green, Bury, BL9 0AP, UK.
Telephone: + 44 (0) 161 762 2500, Fax: + 44 (0) 161 762 2501
E-mail:
mail: stacks@lgcpt.com, Web: www.lgcpt.com
Page 2 of 2