Please note our new proficiency testing schemes.


Name Planned shipping method Start Date  
Water vapour transmission rate ISO 15106-3
Parameters: 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 2025 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.
New proficiency testing
Shipping at room temperature November 2024 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.
New proficiency testing
Shipping at room temperature November 2025 Add to cart
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.
Shipping at room temperature November 2024 Add to cart
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.
Shipping at room temperature November 2025 Add to cart
Wear Characteristics of Flocking PV 3366
Parameters: Visual evaluation [OK / Conditionally OK / Not OK]
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 Resistance PV 3908
Parameters: 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.
Is currently underway. Can still be booked.
Shipping at room temperature May 2024 Add to cart
Wear Resistance PV 3908
Parameters: 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
Weathering (Dry, Hot) - Kalahari test PV 3929
Parameters: Evaluation by participant: Change in color with greyscale (ISO 105-A02) and color measurement (VW 50195) with multi-angle geometry: 45°as:15°/ 45°as:25° / 45°as:45° / 45°as:75° / 45°as:110°
Article Number: 2010128
Description: For this Proficiency test a return of the tested samples is required!
Category: chemical-physical testing material testing Thermoplastics
Accreditation: This proficiency test is not included in the scope of the accreditation.
Is currently underway. Can still be booked.
Shipping at room temperature April 2024 Add to cart
Weathering (Dry, Hot) - Kalahari test PV 3929
Parameters: Evaluation by participant: Change in color with greyscale (ISO 105-A02) and color measurement (VW 50195) with multi-angle geometry: 45°as:15°/ 45°as:25° / 45°as:45° / 45°as:75° / 45°as:110°
Article Number: 2010128
Description: For this Proficiency test a return of the tested samples is required!
Category: chemical-physical testing material testing 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
Parameters: Evaluation by participant: Change in color with greyscale (ISO 105-A02) and color measurement (VW 50195) with multi-angle geometry: 45°as:15°/ 45°as:25° / 45°as:45° / 45°as:75° / 45°as:110°
Article Number: 2010130
Description: For this Proficiency test a return of the tested samples is required! 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 Thermoplastics
Accreditation: This proficiency test is not included in the scope of the accreditation.
Is currently underway. Can still be booked.
Shipping at room temperature April 2024 Add to cart
Weathering (Humid, Hot) - Florida test PV 3930
Parameters: Evaluation by participant: Change in color with greyscale (ISO 105-A02) and color measurement (VW 50195) with multi-angle geometry: 45°as:15°/ 45°as:25° / 45°as:45° / 45°as:75° / 45°as:110°
Article Number: 2010130
Description: For this Proficiency test a return of the tested samples is required! 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 Thermoplastics
Accreditation: This proficiency test is not included in the scope of the accreditation.
Shipping at room temperature April 2025 Add to cart
Wetting tension (green test ink) - ISO 8296, ASTM D2578
Article Number: 2011206
Category: chemical-physical testing material testing Thermoplastics
Accreditation: This proficiency test is not included in the scope of the accreditation.
New proficiency testing
Shipping at room temperature May 2025 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.
New proficiency testing
Shipping at room temperature May 2025 Add to cart
whey
Parameters: fat, dry matter, protein, NPN, lactose, ash, phosphorus, potassium, calcium
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 other milk products
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
Frozen shipping February 2025 Add to cart
whey concentrate
Parameters: fat, dry matter, protein, lactose, ash
Article Number: 2010852
Category: chemical-physical testing food and feed other milk products
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
Frozen shipping July 2024 Add to cart
whey concentrate
Parameters: fat, dry matter, protein, lactose, ash
Article Number: 2010852
Category: chemical-physical testing food and feed other milk products
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
Frozen shipping July 2025 Add to cart
whey powder
Parameters: fat, water content, protein, lactose, ash, pH value, titratable acidity
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
Whiteness measurement acc. to Ganz
Parameters: Whiteness [-] acc. to Ganz
Article Number: 2010806
Category: chemical-physical testing material testing textiles
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
Shipping at room temperature May 2025 Add to cart
whole milk powder
Parameters: fat, free fat, moisture content, protein, lactose, ash, titratable acidity, pH value
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
Refrigerated shipping April 2025 Add to cart