🇵🇱 LABORATORIUM AQUA-CRISTAL PL
Water & wastewaterMicrobiology
LABORATORIUM AQUA-CRISTAL is a laboratory accredited by PCA under number AB 1719 (Powroźnik, Poland). Its accreditation scope covers 75 test methods in the following areas: Water & wastewater, Microbiology. Test objects include: Water intended for human consumption, Spring water, Mineral water, Swimming pool water, Water intended for human consumption, Spring water, Mineral water. Most frequently used techniques: Spectrophotometric method, Membrane filtration method, Titrimetric method.
At a glance
- Accreditation number: PCA AB 1719
- Methods in scope: 75
- Types of test objects: 6
- Techniques used: 8
- City: Powroźnik, Poland
- Accreditation number
- AB 1719
- Accreditation body
- PCA
- Address
- KATARZYNA LUBIAK, ul. Osiedlowa 8, 33-370 Powroźnik
- City
- Powroźnik, Poland
What this laboratory tests (6)
- Water intended for human consumption — 32 methods
- Spring water, Mineral water — 19 methods
- Swimming pool water — 16 methods
- Water intended for human consumption, Spring water, Mineral water — 6 methods
- Swimming pool water, Spring water, Mineral water — 1 method
- Water — 1 method
Analytical techniques used (8)
- Spectrophotometric method — 24 methods
- Membrane filtration method — 14 methods
- Titrimetric method — 8 methods
- Potentiometric method — 6 methods
- Plate method (pour plate) — 5 methods
- Conductometric method — 2 methods
- Nephelometric method — 2 methods
- Potentiometric titration method — 1 method
Laboratory locations
- LABORATORIUM AQUA-CRISTAL (main site) — ul. Osiedlowa 8, 33-370 Powroźnik
- AQUA-CRISTAL LABORATORY — ul. Osiedlowa 8
Certificate information
- Issue date
- 16.09.2026
- Issue no.
- 8
Accreditation scope — test methods (75)
| No. | Test object | Methodology / Parameters | Technique | Reference document | |
|---|---|---|---|---|---|
| AQUA-CRISTAL Laboratory | |||||
| 1 | Water intended for human consumption | Sampling for microbiological testing Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
PN-EN ISO 19458:2007 | ||
| 2 | Water intended for human consumption | Temperature Range (2,0 – 80,0) °C Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
PBL-15 issue II of 02.02.2018 | ||
| 3 | Water intended for human consumption | Coliform bacteria count Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
Membrane filtration method | PN-EN ISO 9308-1:2014-12 +A1:2017-04 | |
| 4 | Water intended for human consumption | Escherichia coli count Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
Membrane filtration method | PN-EN ISO 9308-1:2014-12 +A1:2017-04 | |
| 5 | Water intended for human consumption | Total number of microorganisms at 22 ºC Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
Plate method (pour plate) | PN-EN ISO 6222:2004 | |
| 6 | Water intended for human consumption | Total number of microorganisms at 36 ºC Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
Plate method (pour plate) | PN-EN ISO 6222:2004 | |
| 7 | Water intended for human consumption | Intestinal enterococci count Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
Membrane filtration method | PN-EN ISO 7899-2:2004 | |
| 8 | Water intended for human consumption | Pseudomonas aeruginosa count Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
Membrane filtration method | PN-EN ISO 16266:2009 | |
| 9 | Water intended for human consumption | Count of bacteria of the genus Legionella Matrix A: Procedure 5 (medium A), Procedure 7 (medium C-GVPC) Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
Membrane filtration method | PN-EN ISO 11731:2017-08 +Ap1:2019-12 | |
| 10 | Water intended for human consumption | Sampling for chemical and physical testing Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
PN-ISO 5667-5:2017-10 | ||
| 11 | Water intended for human consumption | Temperature Range (2,0 – 80,0) °C Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
PBL-15 issue II of 02.02.2018 | ||
| 12 | Water intended for human consumption | Colour Range (2 – 250) mg/l Pt Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
Spectrophotometric method | PN-EN ISO 7887:2012+Ap1:2015-06 Method C | |
| 13 | Water intended for human consumption | Free chlorine concentration Range (0,02 – 2,00) mg/l Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
Spectrophotometric method | Hach Lange test No. 8021 edition 9 of 01.2014 | |
| 14 | Water intended for human consumption | Total chlorine concentration Range (0,04 – 2,00) mg/l Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
Spectrophotometric method | Hach Lange test No. 8167, edition 11 of 01.2022 | |
| 15 | Water intended for human consumption | Combined chlorine (chloramine) concentration (calculated) Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
PBL-14 issue II of 31.01.2018 | ||
| 16 | Water intended for human consumption | Turbidity Range (0,1 – 20,00) NTU Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
Nephelometric method | PN-EN ISO 7027-1:2016-09 | |
| 17 | Water intended for human consumption | Aluminium concentration Range (20 – 500) μg/l Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
Spectrophotometric method | HACH LANGE test No. LCK 301, edition 2 of 12.2021 | |
| 18 | Water intended for human consumption | Permanganate index Range (0,5 – 20,0) mg/l O2 Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
Titrimetric method | PN-EN ISO 8467:2001 | |
| 19 | Water intended for human consumption | Nitrate concentration Range (1 – 60,00) mg/l Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
Spectrophotometric method | HACH LANGE LCK test No. 339, edition 2 of 06.2025 | |
| 20 | Water intended for human consumption | Nitrite concentration Range (0,05 – 2,00) mg/l Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
Spectrophotometric method | HACH LANGE test No. LCK 341, edition 2 of 06.2025 | |
| 21 | Water intended for human consumption | Ammonium ion concentration Range (0,03 – 3,25) mg/l Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
Spectrophotometric method | HACH LANGE method No. 8038, edition 9 of 04.2017 | |
| 22 | Water intended for human consumption | Iron concentration Range (20 – 3000) μg/l Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
Spectrophotometric method | HACH LANGE method No. 8008 edition 9 of 01.2014 | |
| 23 | Water intended for human consumption | Manganese concentration Range (6 – 700) μg/l Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
Spectrophotometric method | HACH LANGE method No. 8149, edition 11 of 02.2024 | |
| 24 | Water intended for human consumption | Total content of calcium and magnesium (total hardness) Range (5 – 1000) mg/l CaCO3 Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
Titrimetric method | PN-ISO 6059:1999 | |
| 25 | Water intended for human consumption | Calcium concentration Range (2 – 400) mg/l Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
Titrimetric method | PN-ISO 6058:1999 | |
| 26 | Water intended for human consumption | Magnesium concentration (calculated) Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
PN-C-04554-4:1999 | ||
| 27 | Water intended for human consumption | Chloride concentration Range (5 – 300)mg/l Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
Titrimetric method | PN-ISO 9297:1994 | |
| 28 | Water intended for human consumption | pH Range 4,0 – 10,0 Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
Potentiometric method | PN-EN ISO 10523:2012 | |
| 29 | Water intended for human consumption | Electrical conductivity Range (10 – 3000) μS/cm Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
Conductometric method | PN-EN 27888:1999 | |
| 30 | Water intended for human consumption | Sodium concentration Range (10 – 400) mg/l Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
Potentiometric method | HACH LANGE method No. 8322 edition 10 of 02.2021 | |
| 31 | Water intended for human consumption | Sulfate concentration Range (2 – 250) mg/l Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
Spectrophotometric method | HACH LANGE method No. 8051, edition 1 of 08.2005 | |
| 32 | Water intended for human consumption | Fluoride concentration Range (0,02 - 2,00) mg/l Regulated area: Sampling and testing of water intended for human consumption
performed for the purposes of the legally regulated area
The competence of the laboratory has been confirmed taking into account the applicable requirements of legal acts
to the Act of 7 June 2001 on collective water supply and collective wastewater disposal. |
Spectrophotometric method | HACH LANGE method No. 8029, edition 9 of 01.2014 | |
| 33 | Swimming pool water | Sampling for chemical and physical testing | PBL-22 issue II of 14.07.2021 | ||
| 34 | Swimming pool water | Temperature Range (2,0 – 50,0) °C |
PBL-15 issue II of 02.02.2018 | ||
| 35 | Swimming pool water | Oxidation-reduction (redox) potential vs. Ag/AgCl 3,5 mol/l KCl Range (200 – 1000) mV |
Potentiometric method | PBL-12 issue II of 31.01.2018 | |
| 36 | Swimming pool water | pH Range 4,0 – 9,0 |
Potentiometric method | PN-EN ISO 10523:2012 | |
| 37 | Water | Colour Range (2 – 250) mg/l Pt |
Spectrophotometric method | PN-EN ISO 7887:2012+Ap1:2015-06 Method C | |
| 38 | Swimming pool water | Free chlorine concentration Range (0,02 – 2,00) mg/l |
Spectrophotometric method | Hach Lange test No. 8167, edition 11 of 01.2022 | |
| 39 | Swimming pool water | Total chlorine concentration Range (0,04 – 2,00) mg/l |
Spectrophotometric method | Hach Lange test No. 8167, edition 11 of 01.2022 | |
| 40 | Swimming pool water | Combined chlorine concentration (calculated) | PBL-14 issue II of 31.01.2018 | ||
| 41 | Swimming pool water | Aluminium concentration Range (20 – 500) µg/l |
Spectrophotometric method | HACH LANGE test No. LCK 301, edition 2 of 12.2021 | |
| 42 | Swimming pool water | Turbidity Range (0,1 – 20,00) NTU |
Nephelometric method | PN-EN ISO 7027-1:2016-09 | |
| 43 | Swimming pool water | Permanganate index (oxidisability) Range (0,5 – 20,0) mg/l O2 |
Titrimetric method | PN-EN ISO 8467:2001 | |
| 44 | Swimming pool water, Spring water, Mineral water | Nitrate concentration Range (1 – 60,00) mg/l |
Spectrophotometric method | HACH LANGE LCK test No. 339, edition 2 of 06.2025 | |
| 45 | Spring water, Mineral water | Nitrite concentration Range (0,05 – 2,00) mg/l |
Spectrophotometric method | HACH LANGE test No. LCK 341, edition 2 of 06.2025 | |
| 46 | Spring water, Mineral water | Ammonium ion concentration Range (0,03 – 3,25) mg/l |
Spectrophotometric method | HACH LANGE method No. 8038, edition 9 of 04.2017 | |
| 47 | Spring water, Mineral water | Iron concentration Range (20 – 3000) µg/l |
Spectrophotometric method | HACH LANGE method No. 8008 edition 9 of 01.2014 | |
| 48 | Spring water, Mineral water | Manganese concentration Range (6 – 700) µg/l |
Spectrophotometric method | HACH LANGE method No. 8149, edition 11 of 02.2024 | |
| 49 | Spring water, Mineral water | Total hardness (total content of calcium and magnesium) Range (5 – 1000) mg/l CaCO3 |
Titrimetric method | PN-ISO 6059:1999 | |
| 50 | Spring water, Mineral water | Calcium concentration Range (2 – 400) mg/l |
Titrimetric method | PN-ISO 6058:1999 | |
| 51 | Spring water, Mineral water | Magnesium concentration (calculated) | PN-C-04554-4:1999 | ||
| 52 | Spring water, Mineral water | Chloride concentration Range (5 – 300)mg/l |
Titrimetric method | PN-ISO 9297:1994 | |
| 53 | Spring water, Mineral water | pH Range 4,0 – 10,0 |
Potentiometric method | PN-EN ISO 10523:2012 | |
| 54 | Spring water, Mineral water | Electrical conductivity Range (10 – 3000) µS/cm |
Conductometric method | PN-EN 27888:1999 | |
| 55 | Spring water, Mineral water | Sodium concentration Range (10 – 400) mg/l |
Potentiometric method | HACH LANGE method No. 8322 edition 10 of 02.2021 | |
| 56 | Spring water, Mineral water | Sulfate concentration Range (2 – 250) mg/l |
Spectrophotometric method | HACH LANGE method No. 8051, edition 1 of 08.2005 | |
| 57 | Water intended for human consumption, Spring water, Mineral water | Potassium concentration Range (0,1 – 7,0) mg/l |
Spectrophotometric method | PBL-08 issue IV of 29.01.2018 based on the HACH LANGE method No. 8049 | |
| 58 | Water intended for human consumption, Spring water, Mineral water | Total alkalinity Range (0,40 – 100) mmol/l Mineral alkalinity (0,40 – 100) mmol/l |
Potentiometric titration method | PN-EN ISO 9963-1:2001 cl. 8.1 | PN-EN ISO 9963-1:2001/Ap1:2004 | |
| 59 | Water intended for human consumption, Spring water, Mineral water | Concentration of acid carbonates (hydrogen carbonates) (calculated) | PN-EN ISO 9963-1:2001 cl. 8.1 | PN-EN ISO 9963-1:2001/Ap1:2004 Annex A | ||
| 60 | Water intended for human consumption, Spring water, Mineral water | Barium concentration Range (0,06 - 10) mg/l |
Spectrophotometric method | PBL-45 issue II of 29.03.2023 based on the HACH LANGE method No. 8014 | |
| 61 | Water intended for human consumption, Spring water, Mineral water | Fluoride concentration Range (0,02 - 2,00) mg/l |
Spectrophotometric method | HACH LANGE method No. 8029, edition 9 of 01.2014 | |
| 62 | Water intended for human consumption, Spring water, Mineral water | Sum of mineral components (total mineralisation) calculated | PBL-43 issue II of 29.03.2023 | ||
| 63 | Spring water, Mineral water | Coliform bacteria count | Membrane filtration method | PN-EN ISO 9308-1:2014-12 | PN-EN ISO 9308-1:2014-12 /A1:2017-04 | |
| 64 | Spring water, Mineral water | Escherichia coli count | Membrane filtration method | PBL-39 issue I of 15.07.2020 | |
| 65 | Spring water, Mineral water | Intestinal enterococci count | Membrane filtration method | PN-EN ISO 7899-2:2004 | |
| 66 | Spring water, Mineral water | Count of Pseudomonas aerugionosa | Membrane filtration method | PN-EN ISO 16266:2009 | |
| 67 | Spring water, Mineral water | Total count of microorganisms at 37 °C | Plate method (pour plate) | PBL-37 issue I of 12.07.2018 | |
| 68 | Spring water, Mineral water | Total viable count at 22 °C | Plate method (pour plate) | PBL-37 issue I of 12.07.2018 | |
| 69 | Spring water, Mineral water | Count of spores of sulphite-reducing anaerobes (Clostridia) | Membrane filtration method | PN-EN 26461-2:2001 | |
| 70 | Swimming pool water | Number of coagulase-positive staphylococci | Membrane filtration method | PZH ZHK:2007 | |
| 71 | Swimming pool water | Escherichia coli count | Membrane filtration method | PN-EN ISO 9308-1:2014-12 | PN-EN ISO 9308-1:2014-12 /A1:2017-04 | |
| 72 | Swimming pool water | Count of Pseudomonas aerugionosa | Membrane filtration method | PN-EN ISO 16266:2009 | |
| 73 | Swimming pool water | Total viable count at 36 °C | Plate method (pour plate) | PN-EN ISO 6222:2004 | |
| 74 | Swimming pool water | Count of Legionella sp. bacteria Matrix A: Procedure 5 (medium A), Procedure 7 (medium C-GVPC) |
Membrane filtration method | PN-EN ISO 11731:2017-08 | PN-EN ISO 11731:2017-08 /Ap1:2019-12 | |
| 75 | Swimming pool water | Sampling for microbiological testing | PN-EN ISO 19458:2007 | ||
Reference standards (45)
HACH LANGE method No. 8008 edition 9 of 01.2014
HACH LANGE method No. 8029, edition 9 of 01.2014
HACH LANGE method No. 8038, edition 9 of 04.2017
HACH LANGE method No. 8051, edition 1 of 08.2005
HACH LANGE method No. 8149, edition 11 of 02.2024
HACH LANGE method No. 8322 edition 10 of 02.2021
PBL-08 issue IV of 29.01.2018 based on the HACH LANGE method No. 8049
PBL-12 issue II of 31.01.2018
PBL-14 issue II of 31.01.2018
PBL-15 issue II of 02.02.2018
PBL-22 issue II of 14.07.2021
PBL-37 issue I of 12.07.2018
PBL-39 issue I of 15.07.2020
PBL-43 issue II of 29.03.2023
PBL-45 issue II of 29.03.2023 based on the HACH LANGE method No. 8014
PN-C-04554-4:1999
PN-EN 26461-2:2001
PN-EN 27888:1999
PN-EN ISO 10523:2012
PN-EN ISO 11731:2017-08
PN-EN ISO 11731:2017-08 +Ap1:2019-12
PN-EN ISO 11731:2017-08 /Ap1:2019-12
PN-EN ISO 16266:2009
PN-EN ISO 19458:2007
PN-EN ISO 6222:2004
PN-EN ISO 7027-1:2016-09
PN-EN ISO 7887:2012+Ap1:2015-06 Method C
PN-EN ISO 7899-2:2004
PN-EN ISO 8467:2001
PN-EN ISO 9308-1:2014-12
PN-EN ISO 9308-1:2014-12 +A1:2017-04
PN-EN ISO 9308-1:2014-12 /A1:2017-04
PN-EN ISO 9963-1:2001 cl. 8.1
PN-EN ISO 9963-1:2001/Ap1:2004
PN-EN ISO 9963-1:2001/Ap1:2004 Annex A
PN-ISO 5667-5:2017-10
PN-ISO 6058:1999
PN-ISO 6059:1999
PN-ISO 9297:1994
PZH ZHK:2007
HACH LANGE LCK test No. 339, edition 2 of 06.2025
HACH LANGE test No. LCK 341, edition 2 of 06.2025
Hach Lange test No. 8021 edition 9 of 01.2014
Hach Lange test No. 8167, edition 11 of 01.2022
HACH LANGE test No. LCK 301, edition 2 of 12.2021