Name Planned shipping method Start Date  
Viscosity number (formic acid) ISO 307
Parameters (quantitative): Viscosity number [cm³/g]
Article Number: 2010858
Category: chemical-physical testing material testing plastics (thermoplastics)
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
Shipping at room temperature March 2025 Add to cart
Viscosity number (formic acid) ISO 307
Article Number: 2010858
March 2026 Add to cart
Viscosity number (sulfuric acid) ISO 307
Parameters (quantitative): Viscosity number [cm³/g]
Article Number: 2010795
Category: chemical-physical testing material testing plastics (thermoplastics)
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
Shipping at room temperature March 2025 Add to cart
Viscosity number (sulfuric acid) ISO 307
Article Number: 2010795
March 2026 Add to cart
Viscosity number of PBT ISO 1628-5
Parameters (quantitative): Viscosity number (m-cresol) [cm³/g]
Article Number: 2010859
Category: chemical-physical testing material testing plastics (thermoplastics)
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
Shipping at room temperature March 2025 Add to cart
Viscosity number of PBT ISO 1628-5
Article Number: 2010859
March 2026 Add to cart
Visual determination of insects in flour
Parameters (qualitative): qualitative detection of insects
Parameters (quantitative): quant. determination of insect residues [% (w/w)], number of whole insects [number/kg]
Article Number: 2011217
Description: This proficiency test may contain various insect species that are stock pests, e.g. Sitophilus granarius, Ephestia kuehniella, Tenebrio molitor.
Category: chemical-physical testing food and feed determination of animal species
Accreditation: This proficiency test is not included in the scope of the accreditation.
Refrigerated shipping December 2024 Add to cart
Visual determination of insects in flour
Parameters (qualitative): qualitative detection of insects
Article Number: 2011217
September 2025 Add to cart
Visual determination of insects in flour
Parameters (qualitative): qualitative detection of insects
Article Number: 2011217
September 2026 Add to cart
Visual evaluation with grey scale ISO 105 A02, A03
Parameters (quantitative): Grey scale (change in colour) [grade], Grey scale (staining) [grade]
Article Number: 2010026
Category: chemical-physical testing material testing plastics (thermoplastics)
Accreditation: This proficiency test is within the scope of the A2LA accreditation.
Shipping at room temperature April 2025 Add to cart
Visual evaluation with grey scale ISO 105 A02, A03
Article Number: 2010026
April 2026 Add to cart
Vitamin solution
Parameters (quantitative): thiamine (vitamin B1) as thiamine chloride [mg/100 ml], riboflavine (vitamin B2) as total vitamin B2 [mg/100 ml], niacin (vitamin B3) [mg/100 ml], pantothenic acid (vitamin B5) [mg/100 ml], pyridoxine (vitamin B6) [mg/100 ml], folic acid (vitamin B11) [µg/100 ml], cyanocobalamin (vitamin B12) [µg/100 ml], L-ascorbic acid [mg/100 ml], α-tocopherol (vitamin E) [mg/100 ml], riboflavin [mg/100 ml], flavin mononucleotide [mg/100 ml]
Article Number: 2010021
Category: chemical-physical testing food and feed non-alcoholic beverages
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
Frozen shipping May 2025 Add to cart
Vitamin solution
Article Number: 2010021
May 2026 Add to cart
Voltage dips, short interruptions, voltage variations immunity IEC 61000-4-11
Article Number: 2011063
Description: The EMC test object consists of a tabletop unit with 230 VAC / 50 Hz / 10 A supply connection (single-phase). Operation via an integrated touch display with intuitive user interface.
Category: physical mechanical testing material testing Electromagnetic compatibility
Accreditation: This proficiency test is not included in the scope of the accreditation.
additional test chambers or additional test places are charged with 50% of the proficiency testing price
Is currently underway. Can still be booked.
Shipping at room temperature October 2024 Add to cart
Voltage dips, short interruptions, voltage variations immunity IEC 61000-4-11
Article Number: 2011063
May 2025 Add to cart
Voltage dips, short interruptions, voltage variations immunity IEC 61000-4-11
Article Number: 2011063
May 2026 Add to cart
Volume resistivity IEC 62631-3-1, VDE 0307-3-1
Parameters (quantitative): Volume resistivity [E+05 Ω], Specific volume resistivity [E+05 Ωm]
Article Number: 2010549
Category: physical mechanical testing material testing plastics (thermoplastics)
Accreditation: This proficiency test is not included in the scope of the accreditation.
Shipping at room temperature May 2025 Add to cart
Volume resistivity IEC 62631-3-1, VDE 0307-3-1
Article Number: 2010549
May 2026 Add to cart
Wall thickness measurement of plastic pipes
Parameters (quantitative): Wall thickness [mm], Outer diameter [mm]
Article Number: 2010980
Description: Possible testing e.g. by ISO 3126 or ASTM D2122
Category: physical mechanical testing material testing plastics (thermoplastics)
Accreditation: This proficiency test is not included in the scope of the accreditation.
Shipping at room temperature March 2025 Add to cart
Wall thickness measurement of plastic pipes
Article Number: 2010980
March 2026 Add to cart
1 Parameter mit dieser Kennzeichnung sind abhangig von der Teilnehmerzahl und/oder der Materialauswahl.
Unter Umständen kann es vorkommen, dass dieser Parameter im Ringversuch nicht zur Verfügung steht.