LSC

Accreditation Certificate LP-022  

Annex to the Accreditation Certificate LP-022

Type of scope:  flexible (possibility of implementing minor modifications of the method)*
Site:  in the  laboratory
Testing fields with reference to the type of test: radiochemistry, radiation (alfa, beta, gamma spectrometry, radiation protection measurements)
Testing fields with reference to the type of test item: environment and samples from the environment (waters); foodstuffs (water); biological samples (clinical and pathological samples)

No.	Identification of the document, describing the testing method	Characteristic or parameter tested	Description of test (type of test, test principle or technique)	Range of testing	Items tested (materials, products)
11.	LSC-DN-07 / ver. 08 (Apr. 2023)*** in-house method	H-3 content activity concentration  Bq/m3 Specific activity Bq/kg	Liquid scintilation spectrometry for tritium determination: - direct method - electrolytical enrichment method	direct method Range from 770 Bq/m3 or 0,77 Bq/kg by electrolytic enrichment Range from 24 Bq/m3 or 0,024 Bq/kg Detection limit and other characteristic limits are determined according to ISO 11929:2019.	direct method: water, urine method with electrolytic enrichment: water
12.	LSC-DN-10**** / Ver. 03 (Aug. 2021) in-house method	content of gross alpha emitters content of gross beta emitters specific activity Bq/kg activity concentration Bq/L	Liquid scintillation spectrometry to determine the total activity of α and β emitters in water - Direct method - Method of concentrating	direct method Range from 42 mBq/kg (mBq/L) gross β emitters Range from 440 mBq/kg (mBq/L) preconcentration method gross α emitters Range from 1,5 mBq/kg (mBq/L) gross β emitters Range from 10 mBq/kg (mBq/L) Detection limit and other characteristic limis are determined according to ISO 11929:2019	water

* Laboratory can implement minor modifications of the method as necessary (e.g. adaptation to the new version). Detailes on the actual state of the scope is maintained by the laboratory.

** Range of testing and detection limits depend on method, initial sample quantity and type of material (sample matrix). These data are available upon request in the laboratory and available on web page of the laboratory https://f2.ijs.si/mma/lsc_MDA.pdf.

*** In year 2023 complete reevaluation of the tritium activity calculation was performed, including determination of characteristic limits and other parameters based on the standard ISO 11929 and updates of the programmes for data evaluation.

**** In the year 2021 the regular revision of the procedure was performed, minor changes were implemented.

 

Type of scope:  flexible (possibility of implementig minor modifications of the method)*
Site:  in the  laboratory
Testing fields with reference to the type of test: radiochemistry, radiation (alfa, beta, gamma spectrometry, radiation protection measurements)
Testing fields with reference to the type of test item: environment and samples from the environment (water, ground, air, wastes), foodstuffs, biological samples, fuels and lubricants, agricultural products, wood, tobacco products, construction products, materials and structures, industrial materials and products, chemicals, chemical products, cosmetics, plastic and rubber, textile and leather, glass, ceramics, paper, paperboard and packaging

No.	Identification of the document, describing the testing method	Characteristic or parameter tested	Description of test (type of test, test principle or technique)	Range of testing	Items tested (materials, products)
13.	LSC-DN-13 / ver. 03 (Feb. 2022)*** in-house method	C-14 content mass portion of biocomponent % specific activity activity per mass of carbon in the sample Bq/kgC	Liquid scintillation counting: - Direct method CO2 absorption method	Range from 0,48 % 1 Bq/kg 1,2 Bq/kgC Detection limit and other characteristic limis are determined according to ISO 11929:2019.	solid, fluid and gasseous materials

* Laboratory can implement minor modifications of the method as necessary (e.g. adaptation to the new version). Detailes on the actual state of the scope is maintained by the laboratory.

**  Range of testing and detection limits depend on method, initial sample mass and type of material (sample matrix). These data are available upon request in the laboratory and available on web page of the laboratory https://f2.ijs.si/mma/lsc_MDA.pdf.

*** In the year 2022 the regular revision of the procedure was performed, minor changes were implemented.

Updated: 10-10-2024