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Proficiency Testing Report
COSQC Laboratory Accreditation
Department
Date: 05/05/2015 F28. Ver01
Proficiency Testing Final Report
Report No. 002
Chemical Analysis of Portland Cement
(Portland Cement 02-2015)
Issue date: 12 July 2015
Prepared by Approved by Ban I. Nawrooz Elham H. Al-Ahmed PT coordinator Head of IQAS
Page 2 of 28 Report No. 002
IQAS PT section
Table of Contents
1- Introduction …..………………………………………………………….. 3 1.1 Proficiency Testing ………………………………………………….. 3 1.2 Confidentiality …..…………………………………………………... 3
2- Participated Laboratories ……………………………………………...…. 4
3- Test Material ……………………………………………………………... 4 3.1 Preparation …………………..………………………………….…….. 4 3.2 Homogeneity ……………….………………………………………..... 4 3.3 Dispatch ………………………..……………………………………... 4 3.4 Test Method ……………………………………………………………5
4- Statistical Evaluation of Results ……………………………………...……5
4.1 Assigned Value ………………………………………………………...5 4.2 Z-score …………………...………………………………………….... 5
5- Summary of Results …………………………………………………..….. 6
6- References …………………………………………………………………7
7- Contact Information ………………………………………………………..7
Appendix (A) ………………………………………………………………8 Appendix (B) ………………………………………………………………13 Appendix (C) …………………………………………………...………….21
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IQAS PT section
1- Introduction 1.1 Proficiency Testing:
Proficiency testing programs are statistical quality assurance programs that enable
laboratories to assess their performance in conducting test methods within their own
laboratories when their data are compared against other laboratories that participate
worldwide in the same program.
Proficiency testing aim is to provide an independent assessment of the competence of
participating laboratories. Together with the use of validated methods, Proficiency
testing is an essential element of laboratory quality assurance.
The IQAS PT programs are independent schemes arranged by an independent section
in IQAS; designed for laboratories to ensure the performance of individual laboratories
for specific tests or measurements, and to monitor the continuing performance of
laboratories. It provides laboratories with an objective means of assessing the
reliability and confidence in the data they are producing. It also complies with the
requirements of ISO/IEC 17025:2005: 5.9 – Assuring the quality of test and calibration
results – clause (b) “participation in inter-laboratory comparison or proficiency
testing programs”.
Further details of the IQAS proficiency testing scheme are available in our (PC03.
Ver01) and (W02. Ver01).
1.2 Confidentiality:
In order to ensure confidentiality, a unique laboratory reference code is assigned to
Page 4 of 28 Report No. 002
IQAS PT section
each participant. All participants receive a report including all the results for that PT;
but without identifying individual laboratories.
2- Participated laboratories:
There was a positive response from the laboratories that were invited to participate in
this round. The test sample was distributed to twenty laboratories from eight of Iraqi
governorates; seventeen of the laboratories reported their results within the set time-
frame.
3- Test Material
3.1 Preparation:
Samples for this round were prepared by a subcontractor; the preparation of
samples was according to (EN 196-7, 2007). Sample had been putted in sealed
plastic bottles,
3.2 Homogeneity:
In order to check that the samples to be used in a proficiency test are adequately
homogeneous and stable; randomly selected samples were tested in duplicate in a
subcontracting accredited laboratory. This laboratory meets the requirements of the
standard ISO/IEC 17043-1:2010. The homogeneity was checked according to the
requirement of ISO 13528-2005. These data showed a sufficient homogeneity.
3.3. Dispatch:
One plastic bottle contains 20 gm of ordinary Portland cement was distributed to all
Page 5 of 28 Report No. 002
IQAS PT section
participated laboratories. The start date was 7 April 2015.
Test materials were distributed to twenty participants; most of them collected the
test materials during the time frame; others were a little bit late.
3.4 Test Method:
Work instructions no. (W02. Ver01) were given to the participants to test the
samples for determination of: Silicon dioxide, Aluminum oxide, Ferrous oxide,
Calcium oxide, Magnesium oxide, Insoluble residue, Sulfur trioxide and Loss of
Ignition as per: ASTM C113-14
4- Statistical evaluation of results:
4.1 Assigned value:
The results submitted by participants were statistically analyzed in order to provide
an assigned value for Eight major elements namely Silicon dioxide, Aluminum
oxide, Ferrous oxide, Calcium oxide, Magnesium oxide, Insoluble residue, Sulfur
trioxide and Loss of Ignition.
The assigned value was derived from the consensus of the results submitted by all
participants. Values from participants that were way out from the others are down-
weighted so that their impact is not big according to the statistical method of ISO
13528/5725-5 (Algorithm A+S).
Assigned value and measurements uncertainty are shown in table (1), appendix (A). However the uncertainty of the assigned value will be negligible when it is not too large.
Page 6 of 28 Report No. 002
IQAS PT section
4.2 Z-score:
Results were evaluated by using Z-score value which is a standardized measure of
laboratory bias, calculated using the assigned value and the standard deviation for
proficiency assessment.
푍 − 푠푐표푟푒 =(X − Xa)Ơƿ
Where:
X= the result reported by the participant Xa= the assigned value σp= the standard deviation for proficiency assessment
The basic performance categories and reporting formats to be used are as follows: Score Interpretation |Z| < 2.00 Satisfactory results 2.00 < |Z| < 3.00 Questionable results |Z| > 3.00 Unsatisfactory results All results will be given a performance score. For the purposes of performance assessment for a single round Z- score is interpreted as shown above. 5- Summary of Results:
The results have been analyzed by using the ProLab plus Software which is specifically designed for planning, organizing, performing and analyzing of inter-laboratory tests and proficiency schemes.
87.4% of data points are satisfactory (lie between a Z-score of -2 and +2)
2.52% of data points are Questionable (lie between a Z- score of -2 to -3 and +2 to +3)
10.08% of data points are Unsatisfactory and a (Z-score of below -3 and above +3)
Page 7 of 28 Report No. 002
IQAS PT section
Of the (119) results received; (12) were shown to be unsatisfactory.
The test results submitted by the participated laboratories and Z-scores are presented in the Appendixes.
6- References: - ISO/IEC 17025:2005, General requirements for the competence of testing and
calibration laboratories
- ISO/IEC 17043:2010, Conformity assessment , General requirements for
proficiency testing
- ISO 13528:2005, Statistical methods for use in proficiency testing by inter-
laboratory comparisons Accrediting Conformity Assessment Bodies
- (PC03. Ver01), Proficiency Testing (PT) policy
(W02. Ver01), Work Instructions for Proficiency testing of (Ordinary Portland Cement OPC) Chemical tests
7- Contact Details:
Ban I. NAWROOZ
PT Section \ IQAS \ IRAQ
E-mail: [email protected] , [email protected]
Page 8 of 28 Report No. 002
IQAS PT section
Appendix (A)
Table no 1
Table no 2
Labs Results and Z-scores
Z-ScoreLab ResultsMeasurandSample OutlierLaboratory
CEMENT SIO2 LC01 20.661 1.025CEMENT SIO2 LC02CEMENT SIO2 LC03 14.900 E-6.784CEMENT SIO2 LC04 19.900 0.128CEMENT SIO2 LC05 20.090 0.355CEMENT SIO2 LC06 18.000 E-2.269CEMENT SIO2 LC07 20.020 0.272CEMENT SIO2 LC08 20.040 0.296CEMENT SIO2 LC09 20.460 0.791CEMENT SIO2 LC10 20.010 0.260CEMENT SIO2 LC11 19.160 -0.777CEMENT SIO2 LC12 20.000 0.248CEMENT SIO2 LC14 16.920 E-3.747CEMENT SIO2 LC15 20.380 0.698CEMENT SIO2 LC16 20.580 0.931CEMENT SIO2 LC17 20.020 0.272CEMENT AL2O3 LC01 4.902 -0.168CEMENT AL2O3 LC02CEMENT AL2O3 LC03 5.900 0.953CEMENT AL2O3 LC04CEMENT AL2O3 LC05 5.210 0.201CEMENT AL2O3 LC06 7.080 E2.056CEMENT AL2O3 LC07 5.860 0.912CEMENT AL2O3 LC08 4.350 -0.891CEMENT AL2O3 LC09 5.120 0.095CEMENT AL2O3 LC10 4.110 -1.234CEMENT AL2O3 LC11 5.640 0.680CEMENT AL2O3 LC14 1.070 E-9.374CEMENT AL2O3 LC15 5.120 0.095CEMENT AL2O3 LC16 4.860 -0.220CEMENT AL2O3 LC17 4.700 -0.423CEMENT CAO LC01 63.116 0.819CEMENT CAO LC02CEMENT CAO LC03 53.800 E-4.834CEMENT CAO LC04CEMENT CAO LC05 62.580 0.517CEMENT CAO LC06 16.000 E-47.762CEMENT CAO LC07 62.290 0.353CEMENT CAO LC08 63.020 0.765CEMENT CAO LC09 62.110 0.250CEMENT CAO LC10 62.950 0.726CEMENT CAO LC11 62.920 0.709CEMENT CAO LC12 60.000 -0.973CEMENT CAO LC14CEMENT CAO LC15 63.000 0.754CEMENT CAO LC16 61.360 -0.180
Pt SectionIQAS
Page 1 Page 1 Page 1
Table no 3
Page 9 of 28 Report No. 002
Z-ScoreLab ResultsMeasurandSample OutlierLaboratory
CEMENT CAO LC17 60.400 -0.738CEMENT MGO LC01 2.201 -0.301CEMENT MGO LC02 4.600 E5.974CEMENT MGO LC03 2.300 0.073CEMENT MGO LC04CEMENT MGO LC05 2.210 -0.267CEMENT MGO LC06 0.340 E-16.203CEMENT MGO LC07 2.190 -0.344CEMENT MGO LC08 2.290 0.036CEMENT MGO LC09 2.110 -0.661CEMENT MGO LC10 2.260 -0.076CEMENT MGO LC11 2.690 1.407CEMENT MGO LC14CEMENT MGO LC15 2.320 0.147CEMENT MGO LC16 2.570 1.018CEMENT MGO LC17 2.020 -1.032CEMENT INSOLUBL LC01 1.320 0.407CEMENT INSOLUBL LC02 1.900 1.363CEMENT INSOLUBL LC03 10.250 E5.785CEMENT INSOLUBL LC04CEMENT INSOLUBL LC05 0.730 -1.147CEMENT INSOLUBL LC06 1.220 0.201CEMENT INSOLUBL LC07 1.220 0.201CEMENT INSOLUBL LC08 1.040 -0.218CEMENT INSOLUBL LC09 1.040 -0.218CEMENT INSOLUBL LC10 0.990 -0.347CEMENT INSOLUBL LC11 1.080 -0.119CEMENT INSOLUBL LC12 1.857 1.303CEMENT INSOLUBL LC13 0.900 -0.597CEMENT INSOLUBL LC14 1.460 0.672CEMENT INSOLUBL LC15 0.670 -1.372CEMENT INSOLUBL LC16 0.780 -0.973CEMENT INSOLUBL LC17 0.880 -0.656CEMENT SO3 LC01 2.338 -0.246CEMENT SO3 LC02 2.170 -1.164CEMENT SO3 LC03 3.200 E3.618CEMENT SO3 LC04CEMENT SO3 LC05 2.480 0.480CEMENT SO3 LC06 2.350 -0.183CEMENT SO3 LC07 2.600 1.062CEMENT SO3 LC08 2.200 -0.995CEMENT SO3 LC09 2.440 0.280CEMENT SO3 LC10 2.210 -0.939CEMENT SO3 LC11 2.170 -1.164CEMENT SO3 LC12 2.744 1.725CEMENT SO3 LC13 2.400 0.077CEMENT SO3 LC14 2.530 0.726CEMENT SO3 LC15 2.400 0.077CEMENT SO3 LC16 2.298 -0.458
Page 1 Page 1 Page 1
Pt SectionIQAS Page 10 of 28 Report No. 002
Z-ScoreLab ResultsMeasurandSample OutlierLaboratory
CEMENT SO3 LC17 2.280 -0.555CEMENT LOSS LC01 3.770 0.149CEMENT LOSS LC02 4.200 1.338CEMENT LOSS LC03 4.500 E2.098CEMENT LOSS LC04CEMENT LOSS LC05 3.740 0.061CEMENT LOSS LC06 4.070 0.992CEMENT LOSS LC07 3.940 0.635CEMENT LOSS LC08 3.550 -0.513CEMENT LOSS LC09 3.670 -0.147CEMENT LOSS LC10 3.540 -0.544CEMENT LOSS LC11 3.540 -0.544CEMENT LOSS LC12 0.682 E-18.677CEMENT LOSS LC13 3.560 -0.482CEMENT LOSS LC14 3.940 0.635CEMENT LOSS LC15 3.470 -0.764CEMENT LOSS LC16 3.310 -1.284CEMENT LOSS LC17 3.880 0.466CEMENT FE2O3 LC01CEMENT FE2O3 LC02CEMENT FE2O3 LC03 4.700 E4.206CEMENT FE2O3 LC04CEMENT FE2O3 LC05 2.890 -0.548CEMENT FE2O3 LC06 2.800 -0.857CEMENT FE2O3 LC07 3.000 -0.182CEMENT FE2O3 LC08 3.070 0.043CEMENT FE2O3 LC09 2.960 -0.314CEMENT FE2O3 LC10 3.040 -0.053CEMENT FE2O3 LC11 3.000 -0.182CEMENT FE2O3 LC13 5.000 E4.811CEMENT FE2O3 LC14 3.330 0.838CEMENT FE2O3 LC15 2.960 -0.314CEMENT FE2O3 LC16 2.640 -1.432CEMENT FE2O3 LC17
Page 1 Page 1 Page 1
Pt SectionIQAS Page 11 of 28 Report No. 002
Summary of outliers
Z scoreLab resultMeasurandSample OutlierLaboratory Number
CEMENT SIO2 LC03 14.900 E-6.7841CEMENT SIO2 LC14 16.920 E-3.7471CEMENT SIO2 LC06 18.000 E-2.2691CEMENT SIO2 LC02 E0CEMENT AL2O3 LC14 1.070 E-9.3741CEMENT AL2O3 LC06 7.080 E2.0561CEMENT AL2O3 LC02 E0CEMENT CAO LC03 53.800 E-4.8341CEMENT CAO LC06 16.000 E-47.7621CEMENT CAO LC02 E0CEMENT MGO LC06 0.340 E-16.2031CEMENT MGO LC02 4.600 E5.9741CEMENT INSOLUBL LC03 10.250 E5.7851CEMENT SO3 LC03 3.200 E3.6181CEMENT LOSS LC03 4.500 E2.0981CEMENT LOSS LC12 0.682 E-18.6771CEMENT FE2O3 LC13 5.000 E4.8111CEMENT FE2O3 LC03 4.700 E4.2061CEMENT FE2O3 LC02 E0CEMENT FE2O3 LC01 E0
Outlier type A: laboratories w ith a single outlierOutlier type B: deviant laboratory meanOutlier type C: excessive laboratory standard deviationOutlier type E: score outside tolerance limits
Page 1 Page 1 Page 1
Pt SectionIQAS Page 12 of 28 Report No. 002
Table no 4
PROLab Plus
Laboratory
LC03
LC14
LC06
LC11
LC04
LC12
LC10
LC07
LC17
LC08
LC05
LC15
LC09
LC16
LC01
Z-S
core
3
2
1
0
-1
-2
-3
-4
-5
-6
-7
Limit of tolerance
Limit of tolerance
E E E
Summary results for SiO2
Sample: Assigned value:
Measurand:
Method:
Number of shown laboratories:
Rel. target s.d.:
Range of tolerance:
Rel. repeatability s.d.:
Cement
SIO2
ISO 5725-5 (Alg. A+S) log
15
19.79 % (Empirical value)
4.19% (Empirical value)
not available
18.20 - 21.52 % (|Z-Score| <= 2.000)
Z-ScoreLab ResultLaboratory
LC01 20.661 1.025
LC02 0.000
LC03 14.900 -6.784
LC04 19.900 0.128
LC05 20.090 0.355
LC06 18.000 -2.269
LC07 20.020 0.272
LC08 20.040 0.296
LC09 20.460 0.791
LC10 20.010 0.260
LC11 19.160 -0.777
LC12 20.000 0.248
LC14 16.920 -3.747
LC15 20.380 0.698
LC16 20.580 0.931
LC17 20.020 0.272
Pt SectionIQAS
PROLab Plus
Laboratory
LC03
LC14
LC06
LC11
LC04
LC12
LC10
LC07
LC17
LC08
LC05
LC15
LC09
LC16
LC01
Z-S
core
3
2
1
0
-1
-2
-3
-4
-5
-6
-7
Limit of tolerance
Limit of tolerance
E E E
Fig no 1
Appendix (B)
Page 13 of 28 Report No. 002
PROLab Plus
Laboratory
LC14
LC10
LC08
LC17
LC16
LC01
LC09
LC15
LC05
LC11
LC07
LC03
LC06
Z-S
core
2
0
-2
-4
-6
-8
-10
Limit of tolerance
Limit of tolerance
E
E
Summary results for Al2O3
Sample: Assigned value:
Measurand:
Method:
Number of shown laboratories:
Rel. target s.d.:
Range of tolerance:
Rel. repeatability s.d.:
Cement
AL2O3
ISO 5725-5 (Alg. A+S) log
13
5.04 % (Empirical value)
16.53% (Empirical value)
not available
3.62 - 7.02 % (|Z-Score| <= 2.000)
Z-ScoreLab ResultLaboratory
LC01 4.902 -0.168
LC02 0.000
LC03 5.900 0.953
LC04 0.000
LC05 5.210 0.201
LC06 7.080 2.056
LC07 5.860 0.912
LC08 4.350 -0.891
LC09 5.120 0.095
LC10 4.110 -1.234
LC11 5.640 0.680
LC14 1.070 -9.374
LC15 5.120 0.095
LC16 4.860 -0.220
LC17 4.700 -0.423
Pt SectionIQAS
PROLab Plus
Laboratory
LC14
LC10
LC08
LC17
LC16
LC01
LC09
LC15
LC05
LC11
LC07
LC03
LC06
Z-S
core
2
0
-2
-4
-6
-8
-10
Limit of tolerance
Limit of tolerance
E
E
Fig no 2
Page 14 of 28 Report No. 002
PROLab Plus
Laboratory
LC06
LC03
LC12
LC17
LC16
LC09
LC07
LC05
LC11
LC10
LC15
LC08
LC01
Z-S
core
3
2
1
0
-1
-2
-3
-4
-5
Limit of tolerance
Limit of tolerance
E E
Summary results for CaO
Sample: Assigned value:
Measurand:
Method:
Number of shown laboratories:
Rel. target s.d.:
Range of tolerance:
Rel. repeatability s.d.:
Cement
CAO
ISO 5725-5 (Alg. A+S) log
13
61.67 % (Empirical value)
2.82% (Empirical value)
not available
58.28 - 65.26 % (|Z-Score| <= 2.000)
Z-ScoreLab ResultLaboratory
LC01 63.116 0.819
LC02 0.000
LC03 53.800 -4.834
LC04 0.000
LC05 62.580 0.517
LC06 16.000 -47.762
LC07 62.290 0.353
LC08 63.020 0.765
LC09 62.110 0.250
LC10 62.950 0.726
LC11 62.920 0.709
LC12 60.000 -0.973
LC14 0.000
LC15 63.000 0.754
LC16 61.360 -0.180
LC17 60.400 -0.738
Pt SectionIQAS
PROLab Plus
Laboratory
LC06
LC03
LC12
LC17
LC16
LC09
LC07
LC05
LC11
LC10
LC15
LC08
LC01
Z-S
core
3
2
1
0
-1
-2
-3
-4
-5
Limit of tolerance
Limit of tolerance
E E
Fig no 3
Page 15 of 28 Report No. 002
PROLab Plus
Laboratory
LC06
LC17
LC09
LC07
LC01
LC05
LC10
LC08
LC03
LC15
LC16
LC11
LC02
Z-S
core
5.0
2.5
0.0
-2.5
-5.0
-7.5
-10.0
-12.5
-15.0
Limit of toleranceLimit of tolerance
E
E
Summary results for MgO
Sample: Assigned value:
Measurand:
Method:
Number of shown laboratories:
Rel. target s.d.:
Range of tolerance:
Rel. repeatability s.d.:
Cement
MGO
ISO 5725-5 (Alg. A+S) log
13
2.28 % (Empirical value)
11.75% (Empirical value)
not available
1.80 - 2.88 % (|Z-Score| <= 2.000)
Z-ScoreLab ResultLaboratory
LC01 2.201 -0.301
LC02 4.600 5.974
LC03 2.300 0.073
LC04 0.000
LC05 2.210 -0.267
LC06 0.340 -16.203
LC07 2.190 -0.344
LC08 2.290 0.036
LC09 2.110 -0.661
LC10 2.260 -0.076
LC11 2.690 1.407
LC14 0.000
LC15 2.320 0.147
LC16 2.570 1.018
LC17 2.020 -1.032
Pt SectionIQAS
PROLab Plus
Laboratory
LC06
LC17
LC09
LC07
LC01
LC05
LC10
LC08
LC03
LC15
LC16
LC11
LC02
Z-S
core
5.0
2.5
0.0
-2.5
-5.0
-7.5
-10.0
-12.5
-15.0
Limit of toleranceLimit of tolerance
E
E
Fig no 4
Page 16 of 28 Report No. 002
PROLab Plus
Laboratory
LC15
LC05
LC16
LC17
LC13
LC10
LC08
LC09
LC11
LC06
LC07
LC01
LC14
LC12
LC02
LC03
Z-S
core
6
5
4
3
2
1
0
-1
-2
-3
Limit of tolerance
Limit of tolerance
E
Summary results for Insoluble Residue
Sample: Assigned value:
Measurand:
Method:
Number of shown laboratories:
Rel. target s.d.:
Range of tolerance:
Rel. repeatability s.d.:
Cement
Insoluble Residue
ISO 5725-5 (Alg. A+S) log
16
1.13 % (Empirical value)
38.11% (Empirical value)
not available
0.53 - 2.42 % (|Z-Score| <= 2.000)
Z-ScoreLab ResultLaboratory
LC01 1.320 0.407
LC02 1.900 1.363
LC03 10.250 5.785
LC04 0.000
LC05 0.730 -1.147
LC06 1.220 0.201
LC07 1.220 0.201
LC08 1.040 -0.218
LC09 1.040 -0.218
LC10 0.990 -0.347
LC11 1.080 -0.119
LC12 1.857 1.303
LC13 0.900 -0.597
LC14 1.460 0.672
LC15 0.670 -1.372
LC16 0.780 -0.973
LC17 0.880 -0.656
Pt SectionIQAS
PROLab Plus
Laboratory
LC15
LC05
LC16
LC17
LC13
LC10
LC08
LC09
LC11
LC06
LC07
LC01
LC14
LC12
LC02
LC03
Z-S
core
6
5
4
3
2
1
0
-1
-2
-3
Limit of tolerance
Limit of tolerance
E
Fig no 5
Page 17 of 28 Report No. 002
PROLab Plus
Laboratory
LC02
LC11
LC08
LC10
LC17
LC16
LC01
LC06
LC13
LC15
LC09
LC05
LC14
LC07
LC12
LC03
Z-S
core
4
3
2
1
0
-1
-2
-3
Limit of tolerance
Limit of tolerance
E
Summary results for So3
Sample: Assigned value:
Measurand:
Method:
Number of shown laboratories:
Rel. target s.d.:
Range of tolerance:
Rel. repeatability s.d.:
Cement
SO3
ISO 5725-5 (Alg. A+S) log
16
2.39 % (Empirical value)
8.12% (Empirical value)
not available
2.03 - 2.81 % (|Z-Score| <= 2.000)
Z-ScoreLab ResultLaboratory
LC01 2.338 -0.246
LC02 2.170 -1.164
LC03 3.200 3.618
LC04 0.000
LC05 2.480 0.480
LC06 2.350 -0.183
LC07 2.600 1.062
LC08 2.200 -0.995
LC09 2.440 0.280
LC10 2.210 -0.939
LC11 2.170 -1.164
LC12 2.744 1.725
LC13 2.400 0.077
LC14 2.530 0.726
LC15 2.400 0.077
LC16 2.298 -0.458
LC17 2.280 -0.555
Pt SectionIQAS
PROLab Plus
Laboratory
LC02
LC11
LC08
LC10
LC17
LC16
LC01
LC06
LC13
LC15
LC09
LC05
LC14
LC07
LC12
LC03
Z-S
core
4
3
2
1
0
-1
-2
-3
Limit of tolerance
Limit of tolerance
E
Fig no 6
Page 18 of 28 Report No. 002
PROLab Plus
Laboratory
LC12
LC16
LC15
LC10
LC11
LC08
LC13
LC09
LC05
LC01
LC17
LC07
LC14
LC06
LC02
LC03
Z-S
core
2.5
0.0
-2.5
-5.0
-7.5
-10.0
-12.5
-15.0
-17.5
Limit of toleranceLimit of tolerance
E
E
Summary results for Loss of Ignition
Sample: Assigned value:
Measurand:
Method:
Number of shown laboratories:
Rel. target s.d.:
Range of tolerance:
Rel. repeatability s.d.:
Cement
Loss of Ignition
ISO 5725-5 (Alg. A+S) log
16
3.72 % (Empirical value)
9.08% (Empirical value)
not available
3.10 - 4.46 % (|Z-Score| <= 2.000)
Z-ScoreLab ResultLaboratory
LC01 3.770 0.149
LC02 4.200 1.338
LC03 4.500 2.098
LC04 0.000
LC05 3.740 0.061
LC06 4.070 0.992
LC07 3.940 0.635
LC08 3.550 -0.513
LC09 3.670 -0.147
LC10 3.540 -0.544
LC11 3.540 -0.544
LC12 0.682 -18.677
LC13 3.560 -0.482
LC14 3.940 0.635
LC15 3.470 -0.764
LC16 3.310 -1.284
LC17 3.880 0.466
Pt SectionIQAS
PROLab Plus
Laboratory
LC12
LC16
LC15
LC10
LC11
LC08
LC13
LC09
LC05
LC01
LC17
LC07
LC14
LC06
LC02
LC03
Z-S
core
2.5
0.0
-2.5
-5.0
-7.5
-10.0
-12.5
-15.0
-17.5
Limit of toleranceLimit of tolerance
E
E
Fig no 7
Page 19 of 28 Report No. 002
PROLab Plus
Laboratory
LC16
LC06
LC05
LC09
LC15
LC07
LC11
LC10
LC08
LC14
LC03
LC13
Z-S
core
5
4
3
2
1
0
-1
-2
-3
Limit of tolerance
Limit of tolerance
EE
Summary results for Fe2O3
Sample: Assigned value:
Measurand:
Method:
Number of shown laboratories:
Rel. target s.d.:
Range of tolerance:
Rel. repeatability s.d.:
Cement
FE2O3
ISO 5725-5 (Alg. A+S) log
12
3.06 % (Empirical value)
10.23% (Empirical value)
not available
2.49 - 3.75 % (|Z-Score| <= 2.000)
Z-ScoreLab ResultLaboratory
LC01 0.000
LC02 0.000
LC03 4.700 4.206
LC04 0.000
LC05 2.890 -0.548
LC06 2.800 -0.857
LC07 3.000 -0.182
LC08 3.070 0.043
LC09 2.960 -0.314
LC10 3.040 -0.053
LC11 3.000 -0.182
LC13 5.000 4.811
LC14 3.330 0.838
LC15 2.960 -0.314
LC16 2.640 -1.432
LC17 0.000
Pt SectionIQAS
PROLab Plus
Laboratory
LC16
LC06
LC05
LC09
LC15
LC07
LC11
LC10
LC08
LC14
LC03
LC13
Z-S
core
5
4
3
2
1
0
-1
-2
-3
Limit of tolerance
Limit of tolerance
EE
Fig no 8
Page 20 of 28 Report No. 002
Histogram of scores
Sample:
Measurand:
Cement
SIO2
Z-Score3210-1-2-3-4-5-6
Rel
. fre
quen
cy
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
Pt SectionIQAS
Fig no 1
Appendix (C)
Page 21 of 28 Report No. 002
Histogram of scores
Sample:
Measurand:
Cement
AL2O3
Z-Score210-1-2-3-4-5-6-7-8-9
Rel
. fre
quen
cy
0.275
0.250
0.225
0.200
0.175
0.150
0.125
0.100
0.075
0.050
0.025
0.000
Pt SectionIQAS
Fig no 2
Page 22 of 28 Report No. 002
Histogram of scores
Sample:
Measurand:
Cement
CAO
Z-Score0-5-10-15-20-25-30-35-40-45
Rel
. fre
quen
cy
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
Pt SectionIQAS
Fig no 3
Page 23 of 28 Report No. 002
Histogram of scores
Sample:
Measurand:
Cement
MGO
Z-Score6420-2-4-6-8-10-12-14-16
Rel
. fre
quen
cy
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
Pt SectionIQAS
Fig no 4
Page 24 of 28 Report No. 002
Histogram of scores
Sample:
Measurand:
Cement
Insoluble Residue
Z-Score543210-1-2
Rel
. fre
quen
cy
0.250
0.225
0.200
0.175
0.150
0.125
0.100
0.075
0.050
0.025
0.000
Pt SectionIQAS
Fig no 5
Page 25 of 28 Report No. 002
Histogram of scores
Sample:
Measurand:
Cement
SO3
Z-Score3.532.521.510.50-0.5-1-1.5-2-2.5-3
Rel
. fre
quen
cy
0.250
0.225
0.200
0.175
0.150
0.125
0.100
0.075
0.050
0.025
0.000
Pt SectionIQAS
Fig no 6
Page 26 of 28 Report No. 002
Histogram of scores
Sample:
Measurand:
Cement
Loss of Ignition
Z-Score20-2-4-6-8-10-12-14-16-18
Rel
. fre
quen
cy
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
Pt SectionIQAS
Fig no 7
Page 27 of 28 Report No. 002
Histogram of scores
Sample:
Measurand:
Cement
FE2O3
Z-Score543210-1-2
Rel
. fre
quen
cy
0.5
0.4
0.3
0.2
0.1
0.0
Pt SectionIQAS
Fig no 8
Page 28 of 28 Report No. 002