ELME
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 or fieldwork
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 (sources of ionising radiation, environment)
| 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) |
|---|---|---|---|---|---|
| 4. | ELME-DN-04 / ver. 07 (Jun. 2022) ** in-house method | Ambient dose equivalent rate H*(10)/t | Measurements with portable survey instruments | 0,05 uSv/h – 1 Sv/h U(k=1) = 25% | ionizing radiation sources, working, living and natural environment |
| 5. | ELME-DN-03 / ver. 05 (Feb. 2024)*** in-house method | Surface contamination Bq/cm² or s⁻¹ | Direct measurement
(Eβmax = > 150 keV) (U-238, Am-241 etc.) | MDA, minimum detectable activity - beta emitters (SrY-90) MDA ≥ 0,06 Bq/cm² - alpha emitters (Am-241) MDA ≥ 0,03 Bq/cm² | ionizing radiation sources and other surfaces |
| 6. | ELME-DN-23 / ver. 03 (Jan. 2023)**** in-house method | Average or time dependant activity concentraton of Radon-222 and its daughters | Continuous measurements with active meters (devices) | Radon-222: Radon-222 short-lived decay products activity concentration in the air (Equilibrium Equivalent Concentration –EEC):20 Bq/m3–20 kBq/m3 | air in living or working environment |
* Laboratory can implement minor modifications of the method as necessary (e.g. adaptation to the new version). Details on the actual state of the scope are maintained by the laboratory.
** New portable devices for dose rate measurements were added to the procedure. The uncertainty budget was reevaluated, the final value remains the same. The criteria for the selection of portable dose rate meters are described more precisely, as well as the criteria for QC measurements.
*** A regular five-year review of the content of the instruction was carried out, as well as a review of the calculation and assessment of measurement uncertainty. New portable contamination monitors Berthold LB 124 and CoMo 170 were purchased and included into the quality system.
**** On the basis of new calibration certificates the measurement uncertainty was reevaluated. The instructions for use of new measurement devices DOSEman PRO were added.
Type of scope: flexible (possibility of implementing minor modifications of the method)*
Site: in the laboratory or fieldwork
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 (environment)
| 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) |
|---|---|---|---|---|---|
| 7. | ELME-DN-17 / ver. 04 (Nov. 2021)*** in-house method | Content of radionuclides: Radionuclides emitting gamma- and X-rays in energy range: | High-resolution gamma-ray spectrometry | Range for Cs‑137 from 1 Bq/kg for water samples from 0,08 Bq for aerosol filter samples and smears from 0,8 Bq/kg for soil samples Measurement uncertainty (expressed as relative value k=1): > 7,8 % for Cs-137 | aerosol filters, water, soil, smears |
* Laboratory can implement minor modifications of the method as necessary (e.g. adaptation to the new version). Details on the actual state of the scope are maintained by the laboratory.
** Results of the measurements of activities of gamma-ray and x-ray emitters with gamma-ray spectrometry are reported in the following units: Bq/sample, Bq/m3 for liquid samples and aerosol filters, Bq/kg for solid and liquid samples and Bq/m2 for precipitation and soil samples (deposit). Range of testing and detection limits depends on radionuclides and the type of material (sample matrix). These data are available upon request in the laboratory.
*** In November 2021 the update of the procedure was performed, the radionuclide libraries were updated, the procedure was updated due to installation of the new Genie 2000 software, validation of the spectrometers' performance, calibration of the detectors with new standard ST07, and validation of the G08 geometry.
Type of scope: flexible (possibility of implementing minor modifications of the method)*
Site: in mobile 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, environment), 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) |
|---|---|---|---|---|---|
| 8. | ELME-DN-12 / ver. 14 (Mar. 2023)*** in-house method | Content of radionuclides: Radionuclides emitting gamma- and X-rays in energy range: | High-resolution gamma-ray spectrometry | Range from 0,1 Bq/kg or from 0,1 Bq/L depends on radionuclide and material
| solid and fluid materials |
* Laboratory can implement minor modifications of the method as necessary (e.g. adaptation to the new version). Details on the actual state of the scope are maintained by the laboratory.
** Results of the measurements of activities of gamma-ray and x-ray emitters with gamma-ray spectrometry are reported in the following units: Bq/sample, Bq/m3 for liquid samples and aerosol filters, Bq/kg for solid and liquid samples and Bq/m2 for precipitation and soil samples (deposit). Range of testing and detection limits depend on radionuclides and type of material (sample matrix). These data are available upon request in the laboratory.
*** The update of the procedure in March 2023 includes the update of the procedures of regular QC checks of the spectrometers and the radionuclide libraries, besides examples of the most frequently used sample geometries and chapter on uncertainty determination have been added.
Type of scope: flexible (possibility of implementing minor modifications of the method)*
Site: fieldwork
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: medical devices
| 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) |
|---|---|---|---|---|---|
| 9. | ELME-DN-50 / ver. 04 (Dec. 2020)** in-house method | air kerma (K) air kerma rate (K/t) | Measurement of dosimetric quantities in useful beams of diagnostic x-ray machines | air kerma (K): (0,01 - 2000) mGy air kerma rate (K/t): | X-ray machines |
* Laboratory can implement minor modifications of the method as necessary (e.g. adaptation to the new version). Details on the actual state of the scope are maintained by the laboratory.
** In December 2020 the update of the procedure was performed, and the chapter on the determination of the measurement uncertainty was added.
Updated: 26-2-2024