Name Planned shipping method Start Date  
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.
New proficiency testing
Shipping at room temperature 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.
Is currently underway. Can still be booked.
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 - 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 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.