Proficiency testing catalogue
| Name | Planned shipping method | Start Date | ||
|---|---|---|---|---|
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Vertical resistance EN 1149-2
Parameters (quantitative): Vertical resistance Rv [Ω] Article Number: 2010098 Category: chemical-physical testing material testing protective clothing Accreditation: This proficiency test is not included in the scope of the accreditation. |
 Shipping at room temperature
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May 2028 | Add to cart | |
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Vinegar
Parameters (quantitative): pH value [-], total acid (pH 8.1) calculated as acetic acid [g/100 mL], alcohol by volume [ml/100 ml], sulphur dioxide (SO2) [mg/l], refraction, turbidity [EBC], absorption of light at a wavelength of 420 nm [-], absorption of light at a wavelength of 520 nm [-], absorption of light at a wavelength of 620 nm [-] Article Number: 2011520 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 |
 Frozen shipping
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July 2027 | Add to cart | |
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Vinegar
Article Number: 2011520 |
July 2028 | Add to cart | ||
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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
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March 2027 | Add to cart | |
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Viscosity number (formic acid) ISO 307
Article Number: 2010858 |
March 2028 | Add to cart | ||
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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
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March 2027 | Add to cart | |
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Viscosity number (sulfuric acid) ISO 307
Article Number: 2010795 |
March 2028 | Add to cart | ||
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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
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March 2027 | Add to cart | |
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Viscosity number of PBT ISO 1628-5
Article Number: 2010859 |
March 2028 | Add to cart | ||
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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 cereals, cereal products Accreditation: This proficiency test is not included in the scope of the accreditation. |
 Refrigerated shipping
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September 2027 | Add to cart | |
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Visual determination of insects in flour
Article Number: 2011217 |
September 2028 | Add to cart | ||
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Visual evaluation with grey scale ISO 105 A02, A03
Parameters (quantitative): Grey scale (change in colour) [grade], 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
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April 2027 | Add to cart | |
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Visual evaluation with grey scale ISO 105 A02, A03
Article Number: 2010026 |
April 2028 | Add to cart | ||
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Vitamin solution
Parameters (quantitative): thiamine (vitamin B1) as thiamine chloride [mg/100 ml], riboflavin (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], total ascorbic acid (vitamin C) [mg/100 ml], dehydroascorbic acid [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
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May 2027 | Add to cart | |
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Vitamin solution
Article Number: 2010021 |
May 2028 | Add to cart | ||
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Vitamins in edible oils
Parameters (quantitative): retinol (vitamin A) as all-E-retinol [µg/100 g], total vitamin D [µg/100 g], α-tocopherol (vitamin E) [mg/100 g], vitamin K1 [µg/100 g] Article Number: 2011362 Category: chemical-physical testing food and feed fats, oils and oilseeds Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation. |
Refrigerated shipping
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September 2027 | Add to cart | |
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Vitamins in edible oils
Article Number: 2011362 |
September 2028 | Add to cart | ||
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Water absorption coefficient by partial immersion ISO 15148
Parameters (quantitative): water absorption coefficient Ww Article Number: 2010282 Category: chemical-physical testing material testing mineral building materials Accreditation: This proficiency test is within the scope of the A2LA accreditation. |
Shipping at room temperature
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November 2026 | Add to cart | |
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Water absorption coefficient by partial immersion ISO 15148
Article Number: 2010282 |
November 2027 | Add to cart | ||
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Water absorption coefficient by partial immersion ISO 15148
Article Number: 2010282 |
November 2028 | 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.
Under certain circumstances, this parameter may not be available in the proficiency test.