Name Planned shipping method Start Date  
Resistance to freezing and thawing EN 1367-1
Article Number: 2011234
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 2027 Add to cart
Shell content EN 933-7
Article Number: 2011235
Category: physical mechanical 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
Shell content EN 933-7
Article Number: 2011235
November 2026 Add to cart
Shell content EN 933-7
Article Number: 2011235
November 2027 Add to cart
Total sulfur content, Acid soluble sulfates EN 1744-1
Parameters (quantitative): Total sulfur content (S) [%], Sulphate content (SO3) [%]
Article Number: 2010583
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
Total sulfur content, Acid soluble sulfates EN 1744-1
Article Number: 2010583
November 2026 Add to cart
Total sulfur content, Acid soluble sulfates EN 1744-1
Article Number: 2010583
November 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 - potentiometry EN 1744-1
Article Number: 2011187
November 2026 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
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.