Chemical analysis on non alloyed steel

Presentation for participants

Reference of the ILC:

CA22NS

References of test methods:

All methods can be used

       

Frequency:

Each year

Main characteristics:

C%, Si%, Mn%, S%, P%, Ni%, Cr%, Mo%, V%, Cu%, Al%, Co%, N%

Other characteristics:

All other chemical elements existing in steel

 

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 invalid 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, individual 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:

10 (For this CIL, 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:

Non alloyed steel

Type of samples:

Discs

Approximate dimensions of samples:

Ø40x10 mm

Specific preparation to be performed by the participant:

Extraction of a test specimen

                   

Special notice for this ILC:

All methods may be used. All chemical elements may be determined by the participating laboratory. However, a statistical computation is performed only if a sufficient quantity of results is received.
Note: Chemical analysis on metal products is covered by a large number of international standards, see http://www.iso.org/iso/home/store/catalogue_tc/catalogue_tc_browse.htm?commid=46250&published=on

   

Time schedule:

 

Opening date of registrations

15/11/2021

Registration deadline

15/03/2022

Date of shipment of samples

05/06/2022

Start of the tests

10/06/2022

Deadline for carrying out the tests and providing the results

31/08/2022

Date of delivery of reports

15/10/2022

Note: After the deadline, registrations are only accepted within the limit of availability of samples

                       

Price (€)

300

Price if online payment (€)

240

Approximate weight (kg)

1