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What is rolling proof?

rolling proof is an ongoing scheme of ring tests. The scheme is designed for common pesticide multi-residue methods.

rolling proof can be used

  • for an ongoing validation of multi-residue methods.
  • to set up a PT plan for accreditation bodies (EA-4/18:2010).
  • for internal quality assurance.
  • to identify and eliminate shortcomings of the applied analytical methods.
  • to measure yourself against the best pesticide labs in Europe.

For that purpose,

  • 25 to 35 pesticides are spiked to each test sample.
  • the pesticides are changed from test to test to cover a broad scope.
  • matrices are chosen in accordance with SANTE/11813/2017, annex A.
  • a clear and concise report is provided (z-score and recovery of the spiked level).
  • the certificate summarises your results in a single table – feedback at a glance.

Modules of rolling proof

Laboratories are free to join rolling proof at any time. rolling proof is ready for booking either as a package or test by test. 

vegetables and fruits
 

6-year package

A minimum of 300 pesticides are tested within a 6-year period. All in all 12 ring tests are included. A discount of 10 % is granted if the 6-year package is booked.

Annual Fee
(2 ring tests each year):

1368 €


Total Fee
(6-years, 12 ring tests):

8208 €

cereal grain and products thereof

5-year package

A minimum of 150 pesticides are tested within a 5-year period. All in all 5 ring tests are included. A discount of 5 % is granted if the 5-year package is booked. 

Annual Fee
(1 ring tests each year):

722 €


Total Fee
(5-years, 5 ring tests):

3610 €

tea and spices
 

5-year package

A minimum of 150 pesticides are tested within a 5-year period. All in all 5 ring tests are included. A discount of 5 % is granted if the 5-year package is booked. 

Annual Fee
(1 ring tests each year):

722 €


Total Fee
(5-years, 5 ring tests):

3610 €

Payment of the packages is performed on an annual basis. An early termination of the packages is also possible. The granted discount then has to be compensated.

The small print

No hidden costs

  • All test materials - included
  • All blank materials - included
  • Packing and shipment – included (for participants within the EU only).
  • Shipment costs for shipment to non-EU countries are announced in advance.

Full transparency

  • The preparation of the test material is described in the report.
  • Spiked levels are published.
  • All homogeneity and stability data is included in the report.
  • The criteria for evaluation are described in detail and comprehensively also for non-statisticians.
  • Observations with respect to challenging parameters are discussed and considered during evaluation. 

Costs

  • rolling proof is ready for booking either as a package or test by test.
  • A discount of 10 % (module vegetables and fruits) resp. 5 % (modules cereals resp. tea and spices) is granted if rolling proof is booked as a package.
  • Payment of the packages is performed on an annual basis. An early termination of the packages is also possible. The granted discount then has to be compensated.