Participant´s protocol on a PT 23/4 Proficiency Test
Object of PT 23/4
Determination of C, Mn, Si, P, S, Cu, Cr, Ni, Al, Mo, V, Ti, Sn, Sb, Pb, B, Zn, Co, As in cast iron
(C < 3.6%, Mn < 0.5%, Si < 1.7%, P < 0.02%, S < 0.1%, Cu < 0.2%, Cr < 0.12%, Ni < 0.2%, Al <
0.03%, Mo < 0.01%, V < 0.05%, Ti < 0.2%, Sn < 0.1%, Sb < 0.01%, Pb < 0.015%, B < 0.005%, Zn <
0.03%, Co < 0.02%, As < 0.015%) by Atomic Emission and X-Ray Fluorescence spectrometries on a
plane of solid sample. The validated wet–way methods may be used.
Time of PT 23/4
March 2015
Test participant
Working place:
Address:
Phone/fax:
E-mail:
Date of sample receipt:
Date of analysis:
Name and signature of analyst:
Name of supervisor responsible for the results validation:
Date and signature:
Laboratory stamp:
An integral part of this PT 23/4 protocol are methodical instructions with possible participant´s
comments and tabulated results. The results will be processed under a code number only so the
participant´s identity may not be disclosed.
Please perform the analysis within two weeks after sample receipt and forward the protocol
immediately after the test is completed to the organizer´s address below:
Iva Bogumská - SPL
ul. 1. máje 432
735 31 Bohumín 3
Czech Republic
E-mail: info@spl-bohumin.cz
Methodical instructions for PT 23/4 participants
Prior to analysis of a PT 23/4 sample please the calibration should be validated by the regular
procedure as per the laboratory Q. A. instructions.
Please identify a main or prevailing RM used for the calibration:
List the elements, for which a correction was applied:
Instruction to the analysis
Fill the results of five paralel determinations in the tables of the protocol*. The number of digits
should comply with that in the approximate values indicated in the top of tables.
*If more than one technique is applied (AES and RFS, AES and wet-way analysis), please give the
particular sets of results in separed copies of the protocol. Each participant will be assigned his code
number for each method applied. The same principle may be used for stable and mobile instrument.
Participant´s comments
Please mention below any comment concerning conditions that may have affected your results in the
PT 23/4:
Table of analysis results of PT 23/4 sample
1.
2.
(< 3.600)
% C
% Mn (< 0.500)
(< 1.700)
% Si
(< 0.0200)
% P
(< 0.100)
% S
(< 0.200)
% Cu
(< 0.120)
% Cr
(< 0.200)
% Ni
(< 0.030)
% Al
% Mo (< 0.0100)
(< 0.050)
% V
(< 0.200)
% Ti
(< 0.100)
% Sn
(< 0.0100)
% Sb
(< 0.0150)
% Pb
(< 0.0050)
% B
(< 0.030)
% Zn
(< 0.020)
% Co
(< 0.0150)
% As
3.
4.
5.
The methods of analysis
Fill in following information (check the proper one)
AES and RFS
Method (AES, RFS):
Instrument category (stable, mobile):
Excitation source (spark, arc, glow discharge):
Other methods of analysis
Element
C
Mn
Si
P
S
Cu
Cr
Ni
Al
Mo
V
Ti
Sn
Sb
Pb
B
Zn
Co
As
Method
Element
Method
Element
Method
Element
Method