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Name Planned shipping method Start Date  
Biochemical confirmation procedures in microbiology
Parameters (qualitative): Gram stain [positive/negative], Oxidase test [positive/negative], Katalase test [positive/negative]
Article Number: 2011341
Description: Biochemical confirmation procedures in microbiology
Category: immunological, molecular biological and microbiological testing food and feed food matrices (other)
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
risk group 1
New proficiency testing
Frozen shipping July 2026 Add to cart
Biochemical confirmation procedures in microbiology
Parameters (qualitative): Gram stain [positive/negative], Oxidase test [positive/negative], Katalase test [positive/negative]
Article Number: 2011341
July 2027 Add to cart
Melatonin in dietary supplements
Parameters (quantitative): melatonin (CAS 73-31-4) [mg/kg]
Article Number: 2011360
Category: chemical-physical testing food and feed food matrices (other)
Accreditation: This proficiency test is not included in the scope of the accreditation.
New proficiency testing
Shipping at room temperature December 2026 Add to cart
Melatonin in dietary supplements
Article Number: 2011360
December 2027 Add to cart
Microbial count by flow cytometry
Parameters (quantitative): number of living, bacteria cells [cells/ml]
Article Number: 2011340
Description: Determination of the number of living bacterial cells in liquid matrix using flow cytometry
Category: immunological, molecular biological and microbiological testing food and feed food matrices (other)
Accreditation: This proficiency test is not included in the scope of the accreditation.
risk group 1
New proficiency testing
Frozen shipping July 2026 Add to cart
Microbial count by flow cytometry
Article Number: 2011340
July 2027 Add to cart
Ready to eat meals - enumeration coagulase pos. Staphylococcus
Parameters (quantitative): coagulase pos. Staphylococcus [cfu/g], aerobic total count [cfu/g]
Article Number: 2011344
Category: immunological, molecular biological and microbiological testing food and feed food matrices (other)
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
risk group 2
New proficiency testing
Frozen shipping September 2026 Add to cart
Ready to eat meals - enumeration coagulase pos. Staphylococcus
Article Number: 2011344
September 2027 Add to cart
Ready to eat meals - enumeration of Coliform bacteria
Parameters (quantitative): Coliforms [cfu/g], aerobic total count [cfu/g]
Article Number: 2011343
Category: immunological, molecular biological and microbiological testing food and feed food matrices (other)
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
risk group 1
New proficiency testing
Frozen shipping September 2026 Add to cart
Ready to eat meals - enumeration of Coliform bacteria
Article Number: 2011343
September 2027 Add to cart
Sudan dyes in spices
Parameters (qualitative): identification of sudan dyes
Article Number: 2011359
Category: chemical-physical testing food and feed food matrices (other)
Accreditation: This proficiency test is not included in the scope of the accreditation.
New proficiency testing
Shipping at room temperature December 2026 Add to cart
Sudan dyes in spices
Parameters (qualitative): identification of sudan dyes
Article Number: 2011359
December 2027 Add to cart
1 Parameters with this label depend on the number of participants and/or the choice of materials.
Under certain circumstances, this parameter may not be available in the proficiency test.