ME24NS Participation to ILC Determination of the grain size and of the content of non metallic inclusions of a non alloyed steel

ME-NS

Reference of the ILC	ME24NS
References of test methods	ISO 643 ASTM E112 ISO 4967 ASTM E45 Methods A, D, E EN 10247
References of test methods for which the ILC can indirectly provide an assessment of performance	DIN 50602
	These may be superseded standards, which some of the reference standards may have replaced, or EN or ASTM or ISO standards that are close but not exactly equivalent to the reference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	Each year
Main characteristics	G (Grain size), Rating of A, B, C, D, DS inclusions according to ISO 4967 method A and/or B and/or ASTM E45 method A and/or D and/or B - Ratings P, M, K according to EN 10247.

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	2
Number of samples per participation	Non alloyed steel: 3 - Grain size: 30
Max number of operators per participation	10 (For this ILC, the type of test and sample size allow to provide results determined by several different operators and by several different methods)
Product submitted to tests	For this ILC, a series of samples and a series of images are provided for evaluation.
Type of samples	Bars - Document
Approximate dimensions of samples	Bars: Ø20x30 mm - Document: 1x1 mm
Specific preparation to be performed by the participant	Bars: Preparation of surfaces of observation - Document: None (other than possible necessity to polish the test specimens or to adapt their dimensions to the equipment of the participant)

Special notice for this ILC	Results obtained by several methods may be provided (if the methods are not destructive)

Time schedule:
Opening date of registrations		30/11/2023
Registration deadline		15/03/2024
Date of shipment of samples		31/05/2024
Start of the tests		03/06/2024
Deadline for carrying out the tests and providing the results		23/08/2024
Date of delivery of reports		07/10/2024
Note: After the deadline, registrations are still possible. Contact us at ilc@compalab.org for more information.

Price (€)		325
Price if online payment (€)		260
Approximate weight (kg)		2

260,00€ excl. tax - 312,00€ inc. tax