Test procedures (Last updated November 12th, 2024)

Test procedures according to accreditation certificate D-PL-17110-01 according to DIN EN ISO/IEC 17025:2018
Tests in the areas of physical-chemical, chemical and microbiological testing of foodstuffs
1. Physical, physical-chemical and chemical analysis of food stuffs
1.1 Determination by means of HPLC with standard detectors (UV detector)
DIN EN 12014-2
2018-02
Food stuffs – Determination of nitrate and/or nitrite content – Part 2: HPLC/IC method for the determination of nitrate content of vegetables and vegetable products
1.2 Determination by means of pesticide residues and cannabinoids using liquid chromatography with mass spectrometric detection (LC-MS/MS)
ASU L 00.00-115
2018-10
Foods of plant origin – Multimethod for the determination of pesticide residues using GC- and LC-based analysis following acetonitrile extraction/partitioning and clean-up by dispersive SPE. Modular QuEChERS-method (exception: only for the determination of matrix groups: 1. fruits and vegetables, 2. acidic fruits, 4b. oleiferous fruits, 6. special matrixes)
P-10-06-2
2023-03
Quick method for the analysis of residues of numerous highly polar pesticides in foods of plant origin using LC-MS/MS
P11-01-0
2023-03
Multimethod for the determination of cannabinoids in plants and their products using LC-MS/MS
1.3 Determination by means of pesticide residues and contaminations using gas chromatography with mass spectrometric detection(GC-MS/GC-MS/MS)
ASU L 00.00-49/2
1999-11
Non-fatty foods – Determination of dithiocarbamate and thiuram disulfide residues – Gas chromatographic method (modification: lower sample weight of the test material, by GC-MS/MS)
ASU L 00.00-49/2
1999-11
Non-fatty foods – Determination of dithiocarbamate and thiuram disulfide residues – Gas chromatographic method (modification: lower sample weight of the test material, injection of an isooctane phase, by GC-MS/MS)
ASU L 00.00-115
2018-10
Foods of plant origin – Multimethod for the determination of pesticide residues using GC- and LC-based analysis following acetonitrile extraction/partitioning and clean-up by dispersive SPE. Modular QuEChERS-method (exception: only for the determination of matrix groups: 1. fruits and vegetables, 2. acidic fruits, 4b. oleiferous fruits, 6. special matrixes)
2. Microbiological Food Analysis
2.1 Cultural microbiological analyses
ISO 15214
1998-08
Microbiology of food and animal feeding stuffs – Horizontal method for the enumeration of mesophilic lactic acid bacteria – Colony-count technique at 30°C (modification: also by spiral plate procedure)
ISO/TS 11059
2009-08
Milk and milk products – Method for the enumeration of Pseudomonas spp. (modification: also by spiral plate procedure)
ASU L 00.00-20
2021-07
Microbiology of the food chain — Horizontal method for the detection, enumeration and serotyping of Salmonella – Part 1: Detection of Salmonella spp.
ASU L 00.00-22
2018-03
Microbiology of the food chain — Horizontal method for the detection and enumeration of Listeria monocytogenes and of Listeria spp. — Part 2: Enumeration method (modification: also by spiral plate procedure)
ASU L 00.00-32/1
2018-03
Microbiology of the food chain — Horizontal method for the detection and enumeration of Listeria monocytogenes and of Listeria spp. – Part 1: Detection method
ASU L 00.00-33
2021-03
Microbiology of food and animal feeding stuffs — Horizontal method for the enumeration of presumptive Bacillus cereus — Colony-count technique at 30° C (modification: also by spiral plate procedure)
ASU L 00.00-55
2024-08
Microbiology of the food chain — Horizontal method for the enumeration of coagulase-positive staphylococci (Staphylococcus aureus and other species) — Part 1: Method using Baird-Parker agar medium (modification: also by spiral plate procedure)
ASU L00.00-88/2
2023-04
Microbiology of the food chain — Horizontal method for the enumeration of microorganisms – Part 2: Colony count at 30 °C by the surface plating technique
ASU L 00.00-132/2
2021-03
Microbiology of food and animal feeding stuffs — Horizontal method for the enumeration of beta-glucuronidase-positive Escherichia coli – Part 2: Colony-count technique at 44° C using 5-bromo-4-chloro-3-indolyl beta-D-glucuronide
ASU L 00.00-133/2
2019-12
Microbiology of the food chain — Horizontal method for the detection and enumeration of Enterobacteriaceae – Part 2: Colony-count technique
2.2 Detection of fungi and yeasts using cultural microbiological methods
ISO 21527-1
2008-07
Microbiology of food and animal feeding stuffs — Horizontal method for the enumeration of yeasts and moulds – Part 1: Colony count technique in products with water activity greater than 0,95 (modification: also by spiral plate procedure)
Tests in the following areas: selected microbiological and physical-chemical tests according to the Trinkwasserverordnung, sampling of raw and drinking water
Analyses according to Trinkwasserverordnung – TrinkwV (a.F.) – Sampling
DIN EN ISO 5667-1 (A 4)
2007-04
Water quality — Sampling – Part 1: Guidance on the design of sampling programmes and sampling techniques
DIN ISO 5667-5 (A 14)
2011-02
Water quality — Sampling – Part 5: Guidance on sampling of drinking water from treatment works and piped distribution systems
DIN EN ISO 5667-3 (A 21)
2019-07
Water quality — Sampling – Part 3: Preservation and handling of water samples
DIN EN ISO 19458 (K 19)
2006-12
Water quality — Sampling for microbiological analysis
Empfehlung des Umweltbundesamtes
18. Dezember 2018 Update Dezember 2022
(Bundesgesundheitsblatt 2023 S. 224)
Assessment of drinking water quality regarding the parameters lead, copper and nickel
Attachment 1: Microbiological parameters
Part I: General requirements for drinking water
Escherichia coli (E. coli) DIN EN ISO 9308-1 (K 12) 2017-09
Enterococci DIN EN ISO 7899-2 (K 15) 2000-11
Part II: Requirements for drinking water intended for supply in sealed containers
Escherichia coli (E. coli) DIN EN ISO 9308-1 (K 12) 2017-09
Enterococci DIN EN ISO 16266 (K 11) 2008-05
Pseudomonas aeruginosa DIN EN ISO 16266 (K 11) 2008-05
Attachment 3: Indicator parameters
Part I: General indicator parameters
Coliform bacteria DIN EN ISO 9308-1 (K 12) 2017-09
Colony count at 22 °C TrinkwV §43 Absatz 3
Colony count bei 36 °C TrinkwV §43 Absatz 3
Electrical conductivity DIN EN 27888 (C 8) 1993-11
Hydrogen ions concentration DIN EN ISO 10523 (C 5) 2012-04
Part II: Special requirements for drinking water in drinking water installation systems
Legionella spec. UBA Empfehlung 18. Dezember 2018
Update Dezember 2022
(Bundesgesundheitsblatt 2023 S. 224)

Abbreviations: ASU (Amtliche Sammlung von Untersuchungsverfahren nach §64 LFGB), DIN (Deutsches Institut für Normung e.V.), EN (European Standards), IEC (International Electrotechnical Commission), ISO (International Organization for Standardization), TrinkwV (Trinkwasserverordnung), TS (Technische Spezifikation), QuEChERS (Quick Easy Cheap Effective Rugged and Safe), UBA (Umweltbundesamt)