Name Planned shipping method Start Date  
Water vapour transmission rate ISO 15106-3
Parameters (quantitative): Water vapour transmission rate [g/(m² x d)]
Article Number: 2010847
Category: chemical-physical testing material testing films
Accreditation: This proficiency test is within the scope of the A2LA accreditation.
Shipping at room temperature March 2026 Add to cart
Water vapour transmission rate ISO 15106-3
Article Number: 2010847
March 2027 Add to cart
Water-soluble chloride salts - potentiometry EN 1744-1
Article Number: 2011187
Category: chemical-physical testing material testing aggregates
Accreditation: This proficiency test is not included in the scope of the accreditation.
Shipping at room temperature November 2025 Add to cart
Water-soluble chloride salts - Volhard method EN 1744-1
Parameters (quantitative): Chloride content [%]
Article Number: 2010581
Category: chemical-physical testing material testing aggregates
Accreditation: This proficiency test is not included in the scope of the accreditation.
Shipping at room temperature November 2025 Add to cart
Water-soluble chloride salts - Volhard method EN 1744-1
Article Number: 2010581
November 2026 Add to cart
Water-soluble chloride salts - Volhard method EN 1744-1
Article Number: 2010581
November 2027 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 2026 Add to cart
Wear Characteristics of Flocking PV 3366
Parameters (qualitative): Rating [-]
Article Number: 2010677
May 2027 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 2026 Add to cart
Wear Resistance PV 3908
Article Number: 2010681
May 2027 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 2026 Add to cart
Weathering (Dry, Hot) - Kalahari test PV 3929
Article Number: 2010128
April 2027 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 2026 Add to cart
Weathering (Humid, Hot) - Florida test PV 3930
Article Number: 2010130
April 2027 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 2026 Add to cart
Whey concentrate
Article Number: 2010852
July 2027 Add to cart
Whey powder
Parameters (quantitative): fat [g/100 g], moisture content [g/100 g], crude protein (N x 6,38) [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
Shipping at room temperature March 2026 Add to cart
Whey powder
Article Number: 2010023
March 2027 Add to cart
Whole milk powder
Parameters (quantitative): fat [g/100 g], free fat [g/100 g], moisture content [g/100 g], crude protein (N x 6,38) [g/100 g], lactose (monohydrate) [g/100 g], ash [g/100 g], titratable acid [g/100 g], pH value 1 [-]
Article Number: 2010027
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
Shipping at room temperature April 2026 Add to cart
Whole milk powder
Article Number: 2010027
April 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.