+359 2 994 22 40  
office@dial-ltd.com

1830, Sofia - Buhovo
111, Mina Buhovo Str.

Services

DIAL Ltd. performs a wide range of services:

  • Water sampling and on-site measurements of temperature, water level, flow rate, pH, conductivity, etc.;
  • Collection of soil samples with coordinate capture, gamma background measurements and surface contamination on site;
  • Performing laboratory chemical and radiological analyzes;
  • Reports preparation on the state of the environment and radiation safety;
  • Control of radioactivity of goods, materials and products in production, import and export.

For its activity DIAL LTD has been evaluated and certified by TÜV NORD Bulgaria EOOD, according to the requirements of BDS EN ISO 9001: 2015, Certificate № 32 100 180011, issued on 25.01.2021, valid until 24.01.2023 for the following activities: sampling and testing of soil, water, sludge, building materials and wastes, food and atmospheric air by chemical, physicochemical and radiological indicators. Monitoring the status and change of environmental components and offering options for managerial decisions. Control of radioactivity of goods, materials and products in production, import and export. Assessment of radiation load and health risk. Preparation of projects in the field of environmental control and protection and radiation safety.

DIAL Ltd. owns License from NRA: series Р-80315, registration № 0010, issued on 23.10.2018, valid until 2023 for work with sources of ionizing radiation; NRA ARRANGEMENT: No ВС 4665, issued on 21.11.2018, valid until 24.11.2023. for the temporary storage of radioactive substances arising from the activities associated with or associated with such sources of ionizing radiation.

The Testing Laboratory of DIAL Ltd. is accredited by EA BAS according to BDS EN ISO / IEC 17025: 2018, Certificate of Accreditation issued by IA BSA Reg. No 73 LI / 07.01.2020, valid until 30.09.2021.

Sampling of Radon

SAMPLING

Water under the scope of accreditation
БДС ISO 5667-4:2016
Water quality — Sampling — Part 4: Guidance on sampling from lakes, natural and man-made
БДС ISO 5667-5:2013
Water quality — Sampling — Part 5: Guidance on sampling of drinking water from treatment works and piped distribution systems
БДС EN ISO 5667-6:2016
Water quality - Sampling - Part 6: Guidance on sampling of rivers and streams (ISO 5667-6:2014)
БДС ISO 5667-10:2020
Water quality — Sampling — Part 10: Guidance on sampling of waste water
БДС ISO 5667-11:2011
Water quality — Sampling — Part 11: Guidance on sampling of groundwaters
БДС ISO 5667-12:2017
Water quality — Sampling — Part 12: Guidance on sampling of bottom sediments from rivers, lakes and estuarine areas
БДС EN ISO 5667-13:2011
Water quality - Sampling - Part 13: Guidance on sampling of sludges (ISO 5667-13:2011)
Soil under the scope of accreditation
БДС 17.4.5.01:1985
БДС ISO 18400-102:2019
Soil quality — Sampling — Part 102: Selection and application of sampling techniques
БДС ISO 18400-202:2019
Soil quality — Sampling — Part 202: Preliminary investigations
БДС ISO 18400-205:2019
Soil quality — Sampling — Part 205: Guidance on the procedure for investigation of natural, near-natural and cultivated sites

Table 1

ON-SITE MEASUREMENTS

DOSIMETRIC MEASUREMENTS
under the scope of accreditation
TEST METHODS (STANDARDIZED / VALIDATED)
Exhalation of Radon (emission rate) from terrains, buildings and construction materials ВВЛМ 2:2011 Validated in-laboratory method for determination of Radon - concentration and exhalation.
Volume activity of Radon in the ground air in buildings and outdoors ВВЛМ 2:2011 Validated in-laboratory method for determination of Radon - concentration and exhalation.
Measurement of the power of the equivalent dose of gamma radiation in air for terrains, buildings, structures and scrap ISO/ASTM 51608:2015 A practical guide to gamma ray dosimetry
Assessment of surface pollution. Flux density of alpha and beta particles from structures, work surfaces, equipment, workwear, etc .; ISO 7503-1:2016 Measurement of radioactivity — Measurement and evaluation of surface contamination — Part 1: General principles
PHYSICOCHEMICAL AND CHEMICAL MEASUREMENTS
under the scope of accreditation
TEST METHODS (STANDARDIZED / VALIDATED)
Active reaction (рН) БДС 17.1.4.27:1980 Nature protection. Hydrosphere. Water quality indicators. Methods for determining pH.
Temperature БДС 17.1.4.01:1977 Nature protection. Hydrosphere. Water quality indicators. Method for determining odor, color and temperature.
Specific electrical conductivity БДС ЕN 27888:2002 Water quality. Determination of specific electrical conductivity.
Dissolved oxygen / Oxygen saturation БДС EN ISO 5814:2012 Water quality - Determination of dissolved oxygen - Electrochemical probe method (ISO 5814:2012)

Table 2

WATER - Drinking (1), Surface (2), Underground (3), Mineral (4), Waste (5), Marine (6)

RADIOLOGICAL INDICATORS
under the scope of accreditation
TEST METHODS (STANDARDIZED / VALIDATED)
Natural uranium (Unat.) ВВЛМ 1:2011 Validated in-laboratory method for determination of Uranium (spectrophotometric method with Arsenazo III).
(1,2,3,4,5,6)
Natural uranium (Unat.) And uranium isotopes
(234U)
(235U)
(238U)
БДС EN ISO 17294-2:2016 Water quality - Application of inductively coupled plasma mass spectrometry (ICP-MS) - Part 2: Determination of selected elements including uranium isotopes (ISO 17294-2:2016)
(1,2,3,4,5,6)
 226Ra  БДС 12575:1975 Drinking water. Determination of the content of Radium-226. (1,2,3,4,5,6)
ВВЛМ 5:2020 Validated in-laboratory method for determining the volume activity of Radon-222 and Radium-226 in water. (1,2,3,4,5,6
 Gross α-activity БДС EN ISO 9696:2017 Water quality - Gross alpha activity - Test method using thick source (ISO 9696:2017) (1,2,3,4,5)
 Gross β-activity  БДС EN ISO 9697:2019 Water quality - Gross beta activity - Test method using thick source (ISO 9697:2018) (1,2,3,4,5)
 222Rn  ВВЛМ 5:2020 Validated in-laboratory method for determining the volume activity of Radon-222 and Radium-226 in water. (1,2,3,4,5,6)
БДС EN ISO 13164-4:2020 Water quality - Radon-222 - Part 4: Test method using two-phase liquid scintillation counting (ISO 13164-4:2015) (1,2,3,4,5)
 3H  ВВЛМ 15:2012 Validated in-laboratory method for determination of Tritium (1,2,3,4,5,6)
 Volume activity of γ-radionuclides  БДС EN ISO 10703:2021 Water quality - Gamma-ray emitting radionuclides - Test method using high resolution gamma-ray spectrometry (ISO 10703:2021) (1,2,3,4,5,6)
 PHYSICOCHEMICAL AND CHEMICAL MEASUREMENTS
under the scope of accreditation
 TEST METHODS (STANDARDIZED / VALIDATED)
 Active reaction (рН) БДС 17.1.4.27:1980 Nature protection. Hydrosphere. Water quality indicators. Methods for determining pH.
(1,2,3,4,5,6)
Smell
Color
Temperature
 БДС 17.1.4.01:1977 Nature protection. Hydrosphere. Water quality indicators. Method for determining odor, color and temperature. (5)
 Total dry residue, Undissolved (Suspended) and dissolved, Ignition losses  БДС 17.1.4.04:1980 Nature protection. Hydrosphere. Water quality indicators. Methods for determination of total dry matter, undissolved and dissolved substances. (2,3,5)
 Specific electrical conductivity БДС ЕN 27888:2002 Water quality. Determination of specific electrical conductivity. (1,2,3,4,5,6)
 General hardness БДС ISO 6059:2002 Water quality — Determination of the sum of calcium and magnesium — EDTA titrimetric method (1,2,3)
Ammonia (NH3)/
Ammonium ions (NH4+)
nitrogen Ammonium (N-NH4+)
БДС 17.1.4.10:1979 Nature protection. Hydrosphere. Water quality indicators. Methods for determining the ammonia content. (2,3,5)
Nitrates (NO3-)/ Nitrate ions (NO3-)/
Nitrogen nitrate (N-NO3-)
БДС ISO 7890-3:1998 Water quality — Determination of nitrate — Part 3: Spectrometric method using sulfosalicylic acid (1,2,3,4,5)
Nitrites (NO2-)/
Nitrites ions (NO2-)/
Nitrogen Nitrite (N-NO2-)
БДС EN 26777:1977 Water quality. Determination of nitrite content. Molecular absorption spectrometric method.
(1,2,3,4,5)
Nitrogen Kjeldahl (NKjeldahl) БДС EN 25663:2002 Water quality. Determination of nitrogen by Kjeldahl. Method after mineralization with selenium (1,2,3,4,5)
Organic nitrogen, Total nitrogen, Bound nitrogen (TNb)  ВВЛМ 12:2012 Validated in-laboratory method for the determination of Organic Nitrogen and Total Nitrogen in aqueous samples (calculation method) (1,2,3,4,5,6)
БДС EN 12260:2004 Water quality. Determination of nitrogen. Determination of bound nitrogen (TNb) after oxidation to nitrogen oxides (2,5)
Cyanides (CN-) total and free БДС 17.1.4.14:1979 Nature protection. Hydrosphere. Water quality indicators. Methods for determination of cyanide content. (2,3,5)
sulphates (SO42-)/ Sulphate ions (SO42-)/ Sulphates as sulphur (S) БДС 17.1.4.03:1977 Nature Conservation. Hydrosphere. Water quality indicators. Method for determination of sulphate ion content.. (2,3,5)
Dissolved sulphides and free hydrogen sulphide БДС 17.1.4.09:1979 Nature protection. Hydrosphere. Water quality indicators. Method for determining the content of dissolved sulphides and free hydrogen sulphide. (2,3,5)
Phosphates / Phosphate ions / Orthophosphates (PO43 -) / Phosphates such as phosphorus (P) БДС EN ISO 6878:2005 Water quality - Determination of phosphorus - Ammonium molybdate spectrometric method (ISO 6878:2004).
(1,2,3,4,5,6)
Chlorides / Chlorine ions (Cl-) БДС 17.1.4.24:1980 Nature protection. Hydrosphere. Water quality indicators. Methods for determination of chloride content.. (2,3,5)
Total residual and free chlorine БДС 3560:1981 Drinking water. Determination of residual chlorine content (1)
БДС EN ISO 7393-2:2018 Water quality - Determination of free chlorine and total chlorine - Part 2: Colorimetric method using N,N-dialkyl-1,4-phenylenediamine, for routine control purposes (ISO 7393-2:2017) (1,2,3,4,5,6)
 Alkalinity (carbonate and total) БДС EN ISO 9963-1:2003 Water quality - Determination of alkalinity - Part 1: Determination of total and composite alkalinity
(1,2,3,4)
БДС EN ISO 9963-2:2003 Water quality. Determination of alkalinity. Part 2: Determination of carbonate alkalinity. (1,2,3,4)
Carbonates (СО32-) БДС EN ISO 9963-1:2003 Water quality. Determination of alkalinity. Part 1: Determination of total and composite alkalinity.
(1,2,3,4,5)
Hydrogen carbonates (НСО3-) БДС EN ISO 9963-1:2003 Water quality. Determination of alkalinity. Part 1: Determination of total and composite alkalinity. (1,2,3,4,5,6)
Fluorides (F -) / Fluorine (F) БДС 16911:1988 Drinking water. Method for determination of fluorine content. (1,2,3,4)
Dissolved oxygen / Oxygen saturation БДС 17.1.4.08:1978 Nature protection. Hydrosphere. Water quality indicators. Method for determining the dissolved oxygen content. (2,3,5)
БДС EN ISO 5814:2012 Water quality - Determination of dissolved oxygen - Electrochemical probe method (1,2,3,4,5,6)
Oxidation (COD) БДС ISO 6060:2020 Water quality — Determination of the chemical oxygen demand (1,2,3,4,5,6)
БДС ISO 15705:2020 Water quality — Determination of the chemical oxygen demand index (ST-COD) — Small-scale sealed-tube method (1,2,3,4,5,6)
Permanganate oxidizability БДС 17.1.4.16:1979 Nature protection. Hydrosphere. Water quality indicators. Method for determination of permanganate oxidizability. (2,3,5)
Biochemical oxygen demand (BOD5) БДС ЕN 1899-2:2004 Water quality. Determination of biochemical oxygen demand after n days / BODn /. Part 2: Method for undiluted samples. (1,2,3,4,5)
БДС EN ISO 5815-1:2019 Water quality - Determination of biochemical oxygen demand after n days (BODn) - Part 1: Dilution and seeding method with allylthiourea addition  (1,2,3,4,5,6)
Total Organic Carbon (TOC) / Total Inorganic Carbon (TIC) * / Dissolved Organic Carbon (DOC) БДС EN 1484:2004 Water analysis. Guidelines for the determination of total organic carbon (TOC) and dissolved organic carbon (DОC)
(1,2,3,4,5,6)
Mercury (Hg) EPA Method 7473:2007 Determination of total Mercury in solids and solutions by thermal decomposition, amalgamation and atomic absorption spectrophotometry. (1,2,3,4,5,6)
Chromium total (Cr) hexavalent (Cr6 +) and trivalent (Cr3 +) БДС 17.1.4.17:1979 Nature protection. Hydrosphere. Water quality indicators. Method for determination of chromium / total, hexavalent and trivalent content /. (2,3,5)
Anionic Surfactants (MBAS) / Anionic Detergents БДС EN 903:2004 Water quality. Determination of anionic surfactants by measuring the methylene blue index - MBAS (1,2,5)
Hydrocarbon index for petroleum products / Petroleum products БДС EN ISO 9377-2:2004 Water quality - Determination of hydrocarbon oil index - Part 2: Method using solvent extraction and gas chromatography (2,3,5)
Ag, Al, As, B, Ba, Be, Bi, Ca, Cd, Co, Cr,  Cu, Fe, K, Li, Mg, Mn, Mo, Ni, P, ; Na, Pb, S , Sb, Se, Sn, Sr, Ti, V, W, Zr, Zn БДС EN ISO 11885:2009 Water quality - Determination of selected elements by inductively coupled plasma optical emission spectrometry (ICP-OES)  (1,2,3,4,5,6)
Al, As, B, Ba, Be, Bi, Cd, Co, Cr,  Cu Li, Mn, Mo, Ni, Pb, Sb, Se, P; S,Sn, Sr, W, Zr, Zn БДС EN ISO 17294-2:2016 Water quality - Application of inductively coupled plasma mass spectrometry (ICP-MS) - Part 2: Determination of selected elements including uranium isotopes
(1,2,3,4,5,6)
Phenols / Phenolic index БДС ISO 6439:2002 Water quality - Sampling - Part 6: Guidance on sampling of rivers and streams  (1,2,5)
Extractable substances ВВЛМ 20:2016 Validated in-laboratory method for determination of Extractable Substances (2,5)
Vegetable oils / fats and Animal fats / fats ВВЛМ 16:2016 Validated in-laboratory method for determination of Vegetable oils / oils and Animal fats / fats and petroleum products (2,5)
Oxidation-reduction potential ASTM D 1498:2014 Standard method for testing the oxidation-reduction potential of water (1,2,3,4,5,6)
Absorbable Organic Halides (AOX) БДС EN ISO 9562:2005 Water quality - Determination of adsorbable organically bound halogens (1,2,3,4,5,6)
Bromates ВВЛМ 58:2020 Validated in-laboratory method for determination of Bromates in water. Spectrophotometric determination with 3,3'-dimethylnaphthidine and iodide (1)
INDICATORS OUT OF ACCREDITATION TEST METHODS (STANDARDIZED / VALIDATED)
Total indicative dose / Indicative dose ВЛМ 14:2012 Determination of total indicative dose / indicative dose in water.
90Sr ВВЛМ51:2017 Determination of strontium-90 in different matrices.
99Tc ЕРА Tc-02-RC:1999
129I ЕРА Oise procedure 9:1995
63Ni Eichrom method 63159
14C ВВЛМ54:2018
Am-241, Np-237, Pu-238, Pu-(239+240), Cm-242,Cm-(243+244) ВВЛМ53:2017
taste БДС 8451:1977 Drinking water. Determination of color, taste and peace, temperature and transparency.
Turbidity БДС EN ISO 7027:2001 Water quality - Determination of turbidite

Table 3

SOILS AND SLUDGE
(within the scope of accreditation)

RADIOLOGICAL INDICATORS
under the scope of accreditation
TEST METHODS (STANDARDIZED / VALIDATED)
Equivalent gamma dose rate ISO/ASTM 51608:2015 A practical guide to gamma ray dosimetry
Radioactive surface α- and β-contamination / Specific surface α- and β-activity ISO 7503-1:2016 Measurement of radioactivity. Measurement and assessment of surface pollution. Part 1. Basic principles.
ISO 7503-2:2016 Measurement of radioactivity - Measurement and evaluation of surface contamination — Part 2: Test method using wipe-test samples
 Volume activity of radon in ground air and Exhalation of radon ВВЛМ 2:2011 Validated in-laboratory method for determination of Radon - concentration and exhalation. 
 Specific activity of γ-radionuclides  ВВЛМ 6:2016 Validated in - laboratory method for testing environmental samples for natural and man - made radionuclides.
Natural uranium (Unat)  ВВЛМ 1:2011 Validated in-laboratory method for determination of Uranium (spectrophotometric method with Arsenazo III).
PHYSICOCHEMICAL AND CHEMICAL INDICATORS
under the scope of accreditation
 TEST METHODS (STANDARDIZED / VALIDATED)
Specific electrical conductivity БДС ISO 11265:2002 Soil quality — Determination of the specific electrical conductivity
Active reaction (pH) БДС ISO 10390:2011 Soil quality — Determination of pH
БДС EN 12176:2004 Sludge characteristics. Determination of pH value.
Water soluble salts and their components Water soluble salts and their components
Chlorides / Chlorine ions (Cl-) БДС 11301, т.5:1973 Building soils. Method for determination of water soluble salts and their components.
Nitrates (NO3 -) / Nitrate ions (NO3 -) / Nitrate nitrogen (N-NO3-) БДС 11301, т.6:1973 Building soils. Method for determination of water soluble salts and their components.
Ammonia (NH3) /
Ammonium ions (NH4 +)
Ammonium nitrogen (N-NH4 +)
БДС 11301, т.7:1973 Building soils. Method for determination of water soluble salts and their components.
Sulphates (SO42 -) / Sulphate ions (SO42 -) / Sulphates as sulfur (S) БДС 11301, т.4:1973 Building soils. Method for determination of water soluble salts and their components..
БДС ISO 11048:2002 Soil quality — Determination of water-soluble and acid-soluble sulfate
Total nitrogen (N Kjeldahl) БДС EN 13342:2003 Characteristics of sludge. Determination of nitrogen by Kjeldahl
БДС ISO 11261:2002 Soil quality — Determination of total nitrogen — Modified Kjeldahl method
Arsenic (As), Calcium (Ca), Cadmium (Cd), Cobalt (Co), Chromium (Cr), Copper (Cu), Iron (Fe), Potassium (K) / Potassium as (K2O), Magnesium (Mg) , Manganese (Mn), Sodium (Na), Nickel (Ni), Phosphorus (P) / Phosphorus as (P2O5), Lead (Pb), Zinc (Zn) ВВЛМ 4:2020 Validated intra-laboratory method for determination of water-soluble, accessible (mobile), exchangeable, soluble in royal mixture and total content of elements in soils and sediments.
Mercury (Hg) EPA Method 7473:2007 Determination of total Mercury in solids and solutions by thermal decomposition, amalgamation and atomic absorption spectrophotometry.
Hydrocarbon content in the range from C10 to C40 (Petroleum products) БДС EN ISO 16703:2011 Soil quality - Determination of content of hydrocarbon in the range C10 to C40 by gas chromatography
Carbonates (CO3-) БДС EN ISO 10693:2014 Soil quality - Determination of carbonate content - Volumetric method
Grain size distribution БДС 2762:1993 Building soils. Method for laboratory determination of grain size distribution.
 Dry matter / water content ISO 11465:1993 Soil quality. Determination of dry matter and water content based on mass - Gravimetric method.
БДС EN 12880:2003 Characteristics of sludge. Determination of dry residue and water content.
Hygroscopic moisture БДС 645:1975 Building soils. Determination of hygroscopic moisture.
Losses on heating dry mass БДС EN 15935:2012 Sludge, treated biowaste, soil and waste - Determination of loss on ignition
Organic substances or (organic carbon and humus) БДС 11302:1973 Building soils. Methods for determination of organic substances
INDICATORS OUT OF ACCREDITATION TEST METHODS (STANDARDIZED / VALIDATED)
3H ЕРА Oise procedure АР2:2001
14C ВВЛМ54:2018
90Sr ВВЛМ51:2017 Determination of strontium-90 in different matrices.
Am-241, Np-237, Pu-238, Pu-(239+240), Cm-242,Cm-(243+244)  
  ВВЛМ53:2017

Table 4

MATERIALS AND WASTE,
ION EXCHANGE RESINS

RADIOLOGICAL INDICATORS
under the scope of accreditation

 TEST METHODS (STANDARDIZED / VALIDATED)
Equivalent gamma dose rate ISO/ASTM 51608:2015 A practical guide to gamma ray dosimetry
Radioactive surface α- and β-contamination / Specific surface α- and β-activity ISO 7503-1:2016 Measurement of radioactivity. Measurement and assessment of surface pollution. Part 1. Basic principles.
ISO 7503-2:2016 Measurement of radioactivity - Measurement and evaluation of surface contamination — Part 2: Test method using wipe-test samples
Volume activity of radon in ground air and Exhalation of radon ВВЛМ 2:2011 Validated in-laboratory method for determination of Radon - concentration and exhalation.
Specific activity of γ-radionuclides ВВЛМ 6:2016 Validated in - laboratory method for testing environmental samples for natural and man - made radionuclides.
Natural uranium (Unat) ВВЛМ 1:2011 Validated in-laboratory method for determination of Uranium (spectrophotometric method with Arsenazo III).
PHYSICOCHEMICAL AND CHEMICAL INDICATORS
under the scope of accreditation
TEST METHODS (STANDARDIZED / VALIDATED)
Specific electrical conductivity БДС ISO 11265:2002 Soil quality — Determination of the specific electrical conductivity
Active reaction (рН) БДС EN ISO 10523:2012 Water quality - Determination of pH
Cd, Co, Cr, Cu, Mn, Ni, Pb, Zn ВВЛМ 46:2020 Validated in-laboratory method for the determination of cadmium, chromium, cobalt, copper, lead, manganese, nickel and zinc in waste (royal water extract) with ICP-OES.
Mercury (Hg) EPA Method 7473:2007 Determination of total Mercury in solids and solutions by thermal decomposition, amalgamation and atomic absorption spectrophotometry.
TESTING OF ION EXCHANGE RESINSunder the scope of accreditation    
ВЛМ 29:2019 Internal laboratory method for sampling of solid ion exchange resins (ASTM 2687 – 95/2007 и БДС 10840-73)
ВЛМ 30:2019 Internal laboratory method for determining moisture retention capacity (ASTM D2187-94 (2009)
ВЛМ 31:2019 Internal laboratory method for determining the fractional composition of ion exchange resins (ASTM D2187—94 (2009)
ВЛМ 32:2015 Internal laboratory method for determining the proportion of healthy, cracked and destroyed grains (Microscopic examination)
ВЛМ 33:2015 Internal laboratory method for determining the full metabolic capacity (full capacity) of strongly basic anion exchange resins (DIN54402/2009г)
ВЛМ 34:2015 In-laboratory method for determining the full metabolic capacity of weakly basic anion exchange resins (total capacity of weakly basic anion exchangers) (DIN54402/2009г)
ВЛМ 35:2015 Internal laboratory method for determining the full metabolic capacity (full capacity) of strong acid cation exchange resins (total capacity of strong acid cation exchange resins) (DIN54403)
ВЛМ 36:2015 Internal laboratory method for determining the full metabolic capacity (full capacity) of weakly acidic cation exchange resins (total capacity of weakly acidic cation exchange resins) (DIN 54403)
ВЛМ 37:2019 Internal laboratory method for sample preparation and determination of salting and total ion exchange capacity of anion exchange resins (ASTM D2187-94 (2009)
ВЛМ 38:2019 Internal laboratory method for sample preparation and determination of salting and total ion exchange capacity of cation exchange resins (ASTM D2187-94 (2009)
ВЛМ 39:2015 Internal laboratory method for determining the mechanical strength of ion exchange grains
ВЛМ 40:2015 Internal laboratory method for determination of organic contaminants in ion exchange resins (ASTM D5042- 90 (2009)
ВЛМ 41:2015 Internal laboratory method for determining the abrasion resistance of ion exchange resins
ВЛМ 42:2015 Internal laboratory method for determination of Working Volume of anion exchange resins in water purification from strong acids (ASTM D3087-91 (2009)
ВЛМ 43:2015 Internal laboratory method for determination of Working Capacity of cation exchange resins in certain specific conditions (ASTM D1782—95 (2009)
ВЛМ 44:2015 Internal laboratory method for determining the resistance of ion exchange resins to osmotic shock
ВЛМ 45:2015 In-laboratory method for determining the relative volume of wash water after regeneration of ion exchange resins

Table 5

FOOD, FRUIT AND VEGETABLE
JUICES, VEGETABLES AND
VEGETABLE PRODUCTS

RADIOLOGICAL INDICATORS
under the scope of accreditation
TEST METHODS (STANDARDIZED / VALIDATED)
Specific / volume activity of γ-radionuclides ВВЛМ 6:2016 Validated in - laboratory method for testing environmental samples for natural and man - made radionuclides.
Natural uranium (Unat) ВВЛМ 1:2011 Validated in-laboratory method for determination of Uranium (spectrophotometric method with Arsenazo III).
PHYSICOCHEMICAL AND CHEMICAL INDICATORS
under the scope of accreditation
TEST METHODS (STANDARDIZED / VALIDATED)
Pb, Cd, Zn, Cr, Cu, Fe, Al, As, Ni, Sn ВВЛМ 9:2020 Validated in-laboratory method for the determination of trace elements in plant samples and foods with AAS or ICP (after mineralization).
Mercury (Hg) EPA Method 7473:2007 Determination of total Mercury in solids and solutions by thermal decomposition, amalgamation and atomic absorption spectrophotometry
Active reaction (pH) БДС EN 1132:2000 Fruit and vegetable juices - Determination of the pH-value

Table 6

ATMOSPHERIC AIR

INDICATORS
under the scope of accreditation
TEST METHODS (STANDARDIZED / VALIDATED)
Equivalent gamma dose rate ISO/ASTM 51608:2015 A practical guide to gamma ray dosimetry
Volume activity of radon in ground air and Exhalation of radon ВВЛМ 2:2011 Validated in-laboratory method for determination of Radon - concentration and exhalation.
Volume activity of γ-radionuclides ВВЛМ 6:2016 Validated in - laboratory method for testing environmental samples for natural and man - made radionuclides.

Table 7