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: [email protected], 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: [email protected] 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: [email protected], Web: www.lgcpt.com Page 2 of 2