Name Planned shipping method Start Date  
Water-soluble chloride salts - Volhard method EN 1744-1
Article Number: 2010581
Category: chemical-physical testing material testing Aggregates
Accreditation: This proficiency test is not included in the scope of the accreditation.
Is currently underway. Can still be booked.
Shipping at room temperature November 2024 Add to cart
Water-soluble chloride salts - Volhard method EN 1744-1
Article Number: 2010581
November 2025 Add to cart
Water-soluble chloride salts - Volhard method EN 1744-1
Article Number: 2010581
November 2026 Add to cart
Wear Characteristics of Flocking PV 3366
Parameters (qualitative): Rating [-]
Article Number: 2010677
Description: This Proficiency Test is part of the certification program at Volkswagen, independently of this, participation is possible for every laboratory.
Category: physical mechanical testing material testing rubber & TPE
Accreditation: This proficiency test is not included in the scope of the accreditation.
Shipping at room temperature May 2025 Add to cart
Wear Characteristics of Flocking PV 3366
Parameters (qualitative): Rating [-]
Article Number: 2010677
May 2026 Add to cart
Wear Resistance PV 3908
Parameters (quantitative): Weight loss [mg], Change in color (abrasion image) [grade]
Article Number: 2010681
Description: This Proficiency Test is part of the certification program at Volkswagen, independently of this, participation is possible for every laboratory.
Category: physical mechanical testing material testing textiles
Accreditation: This proficiency test is not included in the scope of the accreditation.
Shipping at room temperature May 2025 Add to cart
Wear Resistance PV 3908
Article Number: 2010681
May 2026 Add to cart
Weathering (Dry, Hot) - Kalahari test PV 3929
Parameters (quantitative): Colour change (greyscale) [grade], Change in colour (measurement 45°as:15° ΔE*-value) [-], Change in colour (measurement 45°as:25° ΔE*-value) [-], Change in colour (measurement 45°as:45° ΔE*-value) [-], Change in colour (measurement 45°as:75° ΔE*-value) [-], Change in colour (measurement 45°as:110° ΔE*-value) [-]
Article Number: 2010128
Category: chemical-physical testing material testing plastics (thermoplastics)
Accreditation: This proficiency test is not included in the scope of the accreditation.
Shipping at room temperature April 2025 Add to cart
Weathering (Dry, Hot) - Kalahari test PV 3929
Article Number: 2010128
April 2026 Add to cart
Weathering (Humid, Hot) - Florida test PV 3930
Parameters (quantitative): Colour change (greyscale) [grade], Change in colour (measurement 45°as:15° ΔE*-value) [-], Change in colour (measurement 45°as:25° ΔE*-value) [-], Change in colour (measurement 45°as:45° ΔE*-value) [-], Change in colour (measurement 45°as:75° ΔE*-value) [-], Change in colour (measurement 45°as:110° ΔE*-value) [-]
Article Number: 2010130
Description: This Proficiency Test is part of the certification program at Volkswagen, independently of this, participation is possible for every laboratory.
Category: chemical-physical testing material testing plastics (thermoplastics)
Accreditation: This proficiency test is not included in the scope of the accreditation.
Shipping at room temperature April 2025 Add to cart
Weathering (Humid, Hot) - Florida test PV 3930
Article Number: 2010130
April 2026 Add to cart
Wetting tension (green test ink) ISO 8296, ASTM D2578
Article Number: 2011206
Category: chemical-physical 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
Wetting tension (green test ink) ISO 8296, ASTM D2578
Article Number: 2011206
May 2026 Add to cart
Wetting tension (red test ink) ISO 8296, ASTM D2578
Article Number: 2011205
Category: chemical-physical testing material testing films
Accreditation: This proficiency test is not included in the scope of the accreditation.
Shipping at room temperature May 2025 Add to cart
Wetting tension (red test ink) ISO 8296, ASTM D2578
Article Number: 2011205
May 2026 Add to cart
Whey
Parameters (quantitative): fat [g/100g], dry matter [g/100g], protein (N x 6,38) [g/100g], lactose (monohydrate) [g/100g], non-protein nitrogen (NPN) x 6.38 [g/100g], ash [g/100g], phosphorus (P) [g/100g], potassium (K) [g/100g], calcium (Ca) [g/100g]
Article Number: 2010049
Description: Whey is a product which derives from the cheese production. Especially the whey protein is of high nutritional value. To show the comparability of the chemical-physical testing of whey this proficiency testing is suitable.
Category: chemical-physical testing food and feed milk products (other)
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
Frozen shipping February 2025 Add to cart
Whey
Article Number: 2010049
February 2026 Add to cart
Whey concentrate
Parameters (quantitative): fat [g/100g], dry matter [g/100g], protein (N x 6,38) [g/100g], lactose (monohydrate) [g/100g], ash [g/100g]
Article Number: 2010852
Category: chemical-physical testing food and feed milk products (other)
Accreditation: This proficiency test is not included in the scope of the accreditation.
Frozen shipping July 2025 Add to cart
Whey concentrate
Article Number: 2010852
July 2026 Add to cart
Whey powder
Parameters (quantitative): fat [g/100 g], moisture content [g/100 g], protein [g/100 g], ash [g/100 g], lactose (monohydrate) [g/100 g], titratable acid [g/100 g], pH value [-]
Article Number: 2010023
Category: chemical-physical testing food and feed milk powder
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
TNP
Refrigerated shipping March 2025 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.