Tests on sealants

Presentation for participants

Reference of the ILC:



References of test methods:

ISO 1183 Parts 1, 2 & 3  ISO 11358-1  ISO 7390  ISO 10563
ISO 2528  ISO 8339  ISO 8340  ISO 7389  ASTM C736  ISO 11432



For this ILC, there is a risk that the number of registrations is insufficient. So a pre-registration procedure is put in place, as follows:


1 - Participants interested in participating pre-register using the registration form. No invoicing is made for this pre-registration;

2 - When at least 10 potential participants have pre-registered, CompaLab asks each of these pre-registrees to confirm their willingness to participate and what are the characteristics for which they commit to provide results;

3 - If at least 8 participants confirm their intention to participate, the CIL organisation concerned is engaged.


Main characteristics:

Density (ISO 1183-1,-2,-3), Thermogravimetry (ISO 11358-1 - transition temperatures and corresponding mass loss percentages), Resistance to flowing (ISO 7390), Mass and volume variations (ISO 10563), Water


vapour permeability (ISO 2528), Secant modulus and elongation at break (ISO 8339), Loss of adhesion or cohesion after 24 h under a given elongation (ISO 8340), Elastic recovery after tensioning (ISO 7389), Secant compression modulus (ISO 11432)

Other characteristics:

The standards ASTM D1505 (Density), ASTM E1131 (Thermogravimetry), ASTM E96 (Water vapour permeability), ASTM C1135 (Secant modulus and elongation at break), ASTM C1135 (Loss of adhesion or cohesion after 24


hours under a given elongation), ASTM C736 (Elastic recovery ) are not very different from the corresponding ISO reference standards for this ILC.


Caution: The number of determinations may be low for the secundary characteristics, what may make inefficient the comparison between laboratories


Determination of the assigned values (“true values” for each characteristic):

By statistical computation of the totality of the results with possible selection on competence criteria (accreditation, validation by a reference body, quantity of tests performed in the year), test to detect possible collusion, merging of results not obtained in reproductibility conditions, suppression of technically unvalid results.


Type of statistical computation:

For numerical results, the statistical computation will provide an assigned value with its attached uncertainty, values of standard deviations for repeatability and reproductibility, limits of alerts for bias and repeatability of the participant, indiviual values for uncertainty of results of participants.

Number of products submitted to tests:


Number of samples per participation:


Max number of operators per participation:

10 (For this CIL, the type of test and sample size allow to provide results determined by several different operators)

Product submitted to tests:


Type of samples:


Approximate dimensions of samples:


Specific preparation to be performed by the participant:

None (other than possible necessity to adapt dimensions of the test specimen to the equipment of the participant)


Price (€)


Price if online payment (€)


Approximate weight (kg)