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Charpy impact pendulum test at ambient temperature (ASTM medium energy)

Presentation for participants

Reference of the ILC

CY-X-ASTM

References of test methods

ASTM E23  ASTM A370

References of test methods for which the ILC can indirectly provide an assessment of performance

ISO 148-1 (KV8)

 

 

 

These may be superseded standards, which some of the reference standards may have replaced, or EN or ASTM or ISO standards that are close but not exactly equivalent to the reference standards.
       

Frequency 

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

KV₈ (Absorbed energy), LE (Lateral expansion)

Other characteristics

SFA (Fracture appearance)
 

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

1

Number of samples per participation

3

Max number of operators per participation

1 (it is necessary to order as many participations as there are participating test operators)

Product submitted to tests

Steel

Type of samples

Parrallelepipeds

Approximate dimensions of samples

120x15x15 mm

Specific preparation to be performed by the participant

Machining of test specimens (2 test pieces per supplied sample)
                   

Special notice for this ILC

Target energy range: 25-100 J.
   

Price (€)

250

Price if online payment (€)

200

Approximate weight (kg)

2