SOILS (ROUND 9) - capeyork.myownserver.netcapeyork.myownserver.net/~ptaasnau/documents/644.pdf · SOILS (ROUND 9) PROFICIENCY ... PTA AND TECHNICAL ADVISER’S COMMENTS 4 7. REFERENCE

SOILS

(ROUND 9)

PROFICIENCY TESTING PROGRAM

JANUARY 2010

REPORT NO. 644

ACKNOWLEDGEMENTS PTA wishes to gratefully acknowledge the technical assistance provided for this program by Mr J Angus and Mr B Johansen of Golder Associates Pty Ltd. This assistance included preparation, distribution and homogeneity testing of the sample, in addition to input into the design of the program, technical advice and discussion in the final report.

© COPYRIGHT PROFICIENCY TESTING AUSTRALIA 2010 PO Box 7507, Silverwater NSW 2128

CONTENTS

1. FORWARD 1 2. FEATURES OF THE PROGRAM 1 3. FORMAT OF APPENDICIES 2 4. STATISTICAL DESIGN OF THE PROGRAM 2 Table A: Summary Statistics 3

5. OUTLIER RESULTS 3 Table B: Outlier Results 4

6. PTA AND TECHNICAL ADVISER’S COMMENTS 4 7. REFERENCE 5 APPENDIX A Summary of results

Dry Density A1.1 Moisture Content A2.1 Liquid Limit A3.1 Plastic Limit A4.1

Plasticity Index A5.1 Linear Shrinkage A6.1 Oversize Material A7.1 APPENDIX B Homogeneity Testing B1.1 APPENDIX C Instructions to Participants C1 Results Sheet C2

1

1. FOREWORD

This report summarises the results of the ninth round of a proficiency testing program for laboratories testing the physical characteristics of a soil sample.

Proficiency Testing Australia conducted the program in October 2009. The Program Coordinator was Mr R Sultan. The aim of the program was to assess laboratories’ ability to competently perform the prescribed analyses.

2. FEATURES OF THE PROGRAM a) A total of 118 laboratories participated in the program. A total of 105 laboratories

returned results in time for inclusion in the final report. b) Participating laboratories were each supplied with a soil sample approximately 15kg in weight (including the bucket). c) The following determinations were to be performed on the cylinders:

Dry Density; Moisture Content; Oversize Material; Liquid Limit; Plastic Limit; Plasticity Index; and Linear Shrinkage.

d) Ten randomly selected samples were analysed for homogeneity. Based on the results

of this testing, it was concluded that the samples for all tests except the linear shrinkage test were sufficiently homogeneous. Therefore any results later identified as outliers could not be attributed to any significant sample variability (Appendix B).

e) Laboratories were requested to perform the tests according to the “Instructions to

Participants" and to record their results on the accompanying "Results Sheet,” both of which were distributed to participants with the samples (Appendix C).

f) Each laboratory was randomly allocated a unique code number for the program to

enable confidentiality of results. Reference to each laboratory in this report is made by its code number. Please note that some laboratories reported more than one set of results and, therefore, one code number (with letter) could appear several times in the same data set.

2

3. FORMAT OF THE APPENDICIES APPENDIX A

Appendix A lists all the results reported by the participating laboratories for each test.

Calculated robust z-scores, z-score charts and a table of robust statistics - number of results, median, normalised interquartile range (IQR), robust coefficient of variation (CV), minimum, maximum and range, are presented for the following tests:

Dry Density; Moisture Content; Liquid Limit; Plastic Limit; and Plasticity Index.

The remaining tests are included in the report to assist PTA and the Technical Adviser to review results and are presented for information purposes only.

APPENDIX B

Appendix B contains details of sample preparation and homogeneity testing data. APPENDIX C Appendix C contains a copy of the “Instructions to Participants” and the “Results

Sheet” supplied to participants. 4. STATISTICAL DESIGN OF THE PROGRAM

Robust statistical procedures were used to generate the z-scores and summary statistics for the results, including: number of results; median; normalised IQR; minimum; maximum; and range.

Robust z-scores were calculated for each laboratory based on the results submitted for the five tests listed above in section 3.

3

TABLE A: Summary Statistics

Test No. of

Results Median

Normalised IQR

Dry Density (0.001 t/m³)

103 2.0940 0.0189

Moisture Content (0.1%)

102 8.08 0.44

Liquid Limit (%) 104 21.4 2.1

Plastic Limit (%) 105 15.0 1.5

Plasticity Index (%) 104 6.0 1.9

Linear Shrinkage (0.5%) 105 3.0 0.4

5. Outlier Results

In order to achieve the program's aim of assessing laboratories' testing performance, a robust statistical approach, which uses z-scores to assess participant’s performance, has been utilised. The z-score is a measure of how far the result(s) is from the consensus value - a normalised value which gives a "score" to each result relative to the other results in the group. Therefore a z-score close to zero means that the result agrees well with those from other laboratories. An outlier will be any result(s) which has an absolute z-score value greater than three.

4

TABLE B: Outlier Results

Test Lab Code


80 and113,


5, 8, 53, 58, 61, 75, 80, 108 and113,

Oversize Material (nearest 1%)

No outliers calculated

Liquid Limit (%)

No outliers reported

Plastic Limit (%)

No outliers reported

Plasticity Index (%)

108

Linear Shrinkage (0.5%)

No outliers calculated

6. PTA AND TECHNICAL ADVISER’S COMMENTS General Comments

Z-scores were calculated for five out of the seven tests. The Oversize Material test is included in the program for information purposes and the Linear Shrinkage Test did not pass the homogeneity testing. The following information relates to the test results in which z-scores were calculated. 105 participating laboratories reported a total of 518 results. There were 12 outlier results reported, which indicates that 2.3% of the total results reported for this program were outlier results. This low percentage figure is considered to be a good result.

Oversize Material

The majority of laboratories reported 0% as a percentage of oversize material. Laboratory One reported 6% and laboratory 108 reported a value of 0.1%.

Dry Density

Two outliers were recorded for this test. Considering 103 laboratories participated in this test a 1.9% outliers identified is a good result. For laboratory codes 65, 116 and 117 other standards / methods were used to determine the Dry Density test producing either a positive bias or negative bias results with |z-score| >3. However by assessing this degree of relative variance the results are deemed to be satisfactory for the standards / methods used.

5

Moisture Content

Nine outliers were reported for this test. This test resulted in the highest number of outliers reported in this program. Two laboratories that received outliers also received outliers in the Dry Density test. Laboratory 108 also received an outlier in the Plasticity Index test. For laboratory codes 116 and 117 other standards / methods were used to determine Moisture Content producing negative bias results with |z-score| >3. However by assessing this degree of relative variance the results are deemed to be satisfactory for the standards / methods used.

Liquid Limit

No laboratories received outliers for this test. Only 4 out of 104 labs received a z-score greater than 2. This is a very good result. Plastic Limit

No laboratories received outliers for this test. Plasticity Index

This test is simply a calculation that is the difference between the Liquid Limit (LL) value and the Plastic Limit (PL) value i.e. LL - PL. Only 2 out of 104 laboratories received outliers for this test both have high Liquid Limit values. Laboratory 65 received a relatively higher result in the Liquid limit Test due to using the WA 120.2 method. This produces a positive bias Plasticity Index results therefore by assessing this degree of relative variance the technical adviser has deemed the results to be satisfactory. Linear Shrinkage

Z-scores were not calculated for this test because the homogeneity testing did not pass. However the results are tabulated for information purposes.

7. REFERENCES

[1] Guide to Proficiency Testing Australia, 2008. This document can be found on the PTA website at www.pta.asn.au under Program / Documents.

[2] Australian Standard AS 1012.9:1999, Methods of testing soils for engineering Purposes.

Method 5.1.1: Soil classification tests. [3] Australian Standard AS 1289.5.1.1:2003, Methods of testing soils for engineering purposes.

Method 5.1.1: Soil compaction and density tests.

http://www.pta.asn.au/�

APPENDIX A

Summary of Results

A1.1


Lab Code Result Robust Z-Score

Method

1 2.020 -3.91 (-) ASTM D 698- Method A

2 --- --- ---

3 2.112 0.95 AS1289.5.1.1

4 2.082 -0.63 AS1289.5.1.1

5 2.093 -0.05 AS1289.5.1.1

6 2.090 -0.21 1289.5.1.1

8 2.126 1.69 AS1289.5.1.1

9 2.096 0.11 AS1289.5.1.1

10 2.078 -0.85 AS1289.5.1.1

11 2.120 1.38 AS1289.5.1.1

12 2.077 -0.90 ---

13 2.121 1.43 AS1289.5.1.1

14 2.078 -0.85 AS1289.5.1.1

15 2.091 -0.16 AS1289.5.1.1

16 2.099 0.26 AS1289.5.1.1

17 --- --- ---

18A 2.083 -0.58 MR Q110A-1996

18B 2.121 1.43 MR Q110A - 1996

19 2.090 -0.21 AS1289.5.1.1

20 2.106 0.63 AS1289.5.1.1

21 2.091 -0.16 AS1289.5.1.1

22 2.114 1.06 ---

23 2.104 0.53 AS1289.5.1.1

24 2.136 2.22 AS1289.5.1.1

25 2.069 -1.32 Q110A 26 2.094 0.00 Q110A

27 2.094 0.00 Q110A

28 2.083 -0.58 AS1289.5.1.1

29 2.121 1.43 AS1289.5.1.1

31 2.087 -0.37 AS1289.5.1.1

32 2.121 1.43 Q110A-1996

33 2.108 0.74 AS1289.5.1.1-2003

34 2.109 0.79 AS1289.5.1.1

35 2.099 0.26 1289.5.1.1

36 2.110 0.85 AS1289.5.1.1

37 2.072 -1.16 AS1289.5.1.1

38 2.085 -0.48 AS1289.5.1.1

39 2.079 -0.79 AS1289.5.1.1

40 2.083 -0.58 AS1289.5.1.1

41 2.073 -1.11 AS1289.5.1.1

42 2.080 -0.74 AS1289.5.1.1

43 2.078 -0.85 ---

A1.2



Method

44 2.109 0.79 AS1289.5.1.1

45 2.087 -0.37 AS1289.5.1.1 46 2.096 0.11 AS1289.5.1.1

47 2.098 0.21 AS1289.5.1.1

48 2.090 -0.21 AS1289.5.1.1

50 2.100 0.32 AS1289.5.1.1

51 2.090 -0.21 AS1289.5.1.1

52 2.124 1.59 AS1289.5.1.1

53 2.077 -0.90 AS1289.5.1.1

54 2.132 2.01 AS1289.5.1.1

55 2.094 0.00 AS1289.5.1.1

56 2.114 1.06 AS1289.5.1.1

57 2.108 0.74 AS1289.5.1.1

58 2.093 -0.05 AS1289.5.1.1 59 2.113 1.01 AS1289.5.1.1

60 2.082 -0.63 AS1289.5.1.1 61 2.098 0.21 AS1289.5.1.1

62 2.098 0.21 AS1289.5.1.1

63 2.089 -0.26 AS1289.5.1.1

64 2.080 -0.74 AS1289.5.1.1

65 2.193 5.24 (+) WA 133.1 Modified Compaction

66 2.074 -1.06 AS1289.5.1.1

67 2.083 -0.58 AS1289.5.1.1

68 2.076 -0.93 AS1289.5.1.1

69 2.102 0.42 AS1289.5.1.1

71 2.091 -0.16 AS1289.5.1.1

72 2.100 0.32 AS1289.5.1.1

73 2.115 1.11 Q110A "A" Mould

74 2.086 -0.42 AS1289.5.1.1

75 2.084 -0.53 AS1289.5.1.1

76 2.074 -1.06 AS1289.5.1.1

77A 2.111 0.90 AS1289.5.1.1

77B 2.092 -0.11 AS1289.5.1.1

78 2.071 -1.22 AS1289.5.1.1

80 1.985 -5.77 § AS1289.5.1.1

82 2.090 -0.21 AS1289.5.1.1

83 2.095 0.05 AS1289.5.1.1

85 2.099 0.26 AS1289.5.1.1

86 --- --- ---

87 --- --- ---

88 --- --- ---

A1.3


Lab Code Result Robust Z-Score Method

89 2.118 1.27 RTA T111

90 2.080 -0.74 AS1289.5.1.1

91 2.094 0.00 Q110A

92 2.071 -1.22 AS1289.5.1.1, T111

93 2.105 0.58 AS1289.5.1.1

94 2.112 0.95 Q110A

95 2.080 -0.74 AS1289.5.1.1

96 2.095 0.05 AS1289.5.1.1

97 2.123 1.53 AS1289.5.1.1

98 2.101 0.37 AS1289.5.1.1

99 2.080 -0.74 AS1289.5.1.1

100 2.097 0.16 AS1289.5.1.1

101 2.080 -0.74 AS1289.5.1.1

102 2.098 0.21 AS1289.5.1.1

103 2.102 0.42 AS

104 2.100 0.32 AS1289.5.1.1

105 2.104 0.53 AS1289.5.1.1

108 2.072 -1.16 AS1289.5.1.1

110 2.123 1.53 AS1289.5.1.1

113 2.005 -4.71 § AS1289.5.1.1

114 2.085 -0.48 AS1289.5.1.1

115 2.101 0.37 AS1289.5.1.1

116 2.169 3.97 (+) TMWA 133.1 117 2.220 6.67 (+) BS 1377 Part 4 1990

118 2.086 -0.42 AS1289.5.1.1

Note: § denotes an outlier (i.e. |z-score| > 3) Note: (+) denotes that the laboratory used a method giving a positive bias therefore the result is deemed to be satisfactory. Note: (-) denotes that the laboratory used a method giving a negative bias therefore the result is deemed to be satisfactory.

Note: --- denotes that the laboratory left this space blank

Summary Statistics

No of Results 103 Median 2.0940 Norm IQR 0.0189 Robust CV 0.90% Minimum 1.985 Maximum 2.220 Range 0.235

A2.1



Method

1 8.1 -1.57 ASTM D 698-Method A

2 --- --- ---

3 9.2 0.90 AS1289.5.1.1

4 10.0 2.70 AS1289.5.1.1

5 5.2 -8.09 § AS1289.2.1.1

6 8.2 -1.35 1289.5.1.1

8 6.0 -6.30 § AS1289.2.1.1

9 8.6 -0.45 AS1289.5.1.1

10 8.9 0.22 AS1289.5.1.1

11 8.0 -1.80 AS1289.5.1.1

12 9.0 0.45 ---

13 7.5 -2.92 AS1289.2.1.1

14 9.3 1.12 AS1289.5.1.1

15 8.9 0.22 AS1289.5.1.1

16 8.6 -0.45 AS1289.5.1.1

17 --- --- ---

18A 8.8 0.00 MR Q1024-1993

18B 8.3 -1.12 MR Q102A - 1993

19 8.9 0.22 AS1289.2.1.1

20 9.4 1.35 AS1289.5.1.1

21 --- --- AS1289.2.1.1

22 8.9 0.22 ---

23 8.6 -0.45 AS1289.2.1.1

24 8.2 -1.35 AS1289.5.1.1

25 9.0 0.45 Q102A 26 8.8 0.00 Q102A

27 8.6 -0.45 Q110A

28 9.1 0.67 AS1289.5.1.1

29 8.5 -0.67 AS1289.5.1.1

31 8.7 -0.22 AS1289.5.1.1

32 8.2 -1.35 Q110A-1996

33 8.8 0.00 AS1289.5.1.1-2003

34 8.4 -0.90 AS1289.5.1.1

35 9.9 2.47 1289.5.1.1

36 8.8 0.00 AS1289.5.1.1, AS1289.2.1.1

37 9.0 0.45 AS1289.5.1.1

38 9.1 0.67 AS1289.2.1.1

39 9.5 1.57 AS1289.5.1.1

40 9.3 1.12 AS1289.5.1.1

41 9.9 2.47 AS1289.5.1.1

42 9.2 0.90 AS1289.5.1.1

43 9.1 0.67 ---

A2.2



44 8.7 -0.22 AS1289.5.1.1, AS1289.2.1.1

45 8.9 0.22 AS1289.6.1.1 46 8.7 -0.22 AS1289.2.1.1

47 9.3 1.12 AS1289.5.1.1

48 8.2 -1.35 AS1289.5.1.1

50 9.0 0.45 AS1289.5.1.1

51 9.1 0.67 AS1289.2.1.1

52 9.8 2.25 § AS1289.5.1.1

53 5.3 -7.87 AS1289.2.1.1

54 9.0 0.45 AS1289.5.1.1

55 8.6 -0.45 AS1289.2.1.1

56 8.8 0.00 AS1289.2.1.1

57 8.9 0.22 AS1289.2.1.1

58 4.8 -8.99 § AS1289.2.1.1 59 9.3 1.12 AS1289.2.1.1

60 9.0 0.45 --- 61 5.3 -7.87 § AS1289.2.1.1

62 8.8 0.00 AS1289.2.1.1

63 9.1 0.67 AS1289.5.1.1

64 8.9 0.22 AS1289.5.1.1

65 6.5 -5.17 (-) WA 133.1

66 9.0 0.45 AS1289.2.1.1

67 9.4 1.35 AS1289.2.1.1

68 8.9 0.22 ---

69 9.4 1.35 AS1289.5.1.1

71 9.0 0.45 AS1289.2.1.1, AS1289.5.1.1

72 9.2 0.90 AS1289.2.1.1

73 8.4 -0.90 Q102A

74 8.9 0.22 AS1289.2.1.4

75 4.6 -9.44 § AS1289.2.1.1

76 9.1 0.67 AS1289.2.1.1

77A 8.6 -0.45 AS1289.5.1.1, AS1289.2.1.1

77B 8.8 0.00 AS1289.5.1.1, AS1289.2.1.1

78 9.2 0.90 AS1289.5.1.1

80 5.1 -8.32 § AS1289.2.1.1

82 8.6 -0.45 AS1289.2.1.1

83 8.6 -0.45 AS1289.2.1.1

85 9.0 0.45 AS1289.2.1.1

86 --- --- ---

87 --- --- ---

88 --- --- ---

A2.3



Method

89 8.1 -1.57 RTA T120

90 8.5 -0.67 AS1289.2.1.1

91 8.9 0.22 Q102A

92 9.1 0.67 AS1289.5.1.1, T111

93 9.5 1.57 AS1289.5.1.1

94 8.7 -0.22 Q102A

95 9.2 0.90 AS1289.2.1.1

96 8.7 -0.22 AS1289.2.1.1

97 9.5 1.57 AS1289.5.1.1

98 8.8 0.00 AS1289.5.1.1

99 8.8 0.00 AS1289.5.1.1

100 8.6 -0.45 AS1289.5.1.1

101 8.4 -0.90 AS1289.5.1.1

102 8.6 -0.45 AS1289.5.1.1

103 8.7 -0.22 AS

104 8.6 -0.45 AS1289.5.1.1

105 8.8 0.00 AS1289.5.1.1

108 6.8 -4.50 § AS1289.2.1.1

110 8.3 -1.12 AS1289.5.1.1, AS1289.2.1

113 11.5 6.07 § AS1289.5.1.1

114 8.6 -0.45 AS1289.2.1.1

115 9.4 1.35 AS1289.5.1.1

116 6.3 -5.62 (-) TMWA 133.1 117 6.0 -6.30 (-) BS 1377 Part 4 1990

118 8.1 -1.57 AS1289.2.1.1

Note: § denotes an outlier (i.e. |z-score| > 3) Note: (-) denotes that the laboratory used a method giving a positive bias therefore the result is deemed to be satisfactory.


Summary Statistics


A3.1

Liquid Limit (%)


Method

1 --- --- ASTM D 4318

2 23.5 1.02 AS1289.3.9.1

3 19.0 -1.12 AS1289.3.1.1

4 21.4 0.02 AS1289.3.1.1

5 21.0 -0.17 AS1289.3.1.1

6 21.0 -0.17 1289.3.1.1

8 21.0 -0.17 AS1289.3.1.2

9 22.8 0.69 AS1289.3.9.1

10 24.0 1.26 AS1289.3.9.1

11 19.0 -1.12 AS1289.3.1.1

12 22.0 0.31 ---

13 22.6 0.59 Q104A

14 21.0 -0.17 AS1289.3.1.1

15 21.0 -0.17 AS1289.3.1.1

16 23.0 0.78 AS1289.3.1.1

17 24.0 1.26 ---

18A 23.4 0.97 MR Q104A - 1986

18B 22.6 0.59 MR Q104A - 1986

19 25.0 1.73 AS1289.3.9.1

20 20.0 -0.64 AS1289.3.1.1

21 22.0 0.31 AS1289.3.1.1

22 24.0 1.26 ---

23 21.6 0.12 Q104A

24 24.0 1.26 AS1289.3.9.1

25 23.2 0.88 Q104A 26 23.2 0.88 Q104A

27 21.8 0.21 Q104A

28 21.8 0.21 Q104A

29 21.0 -0.17 AS1289.3.1.1

31 --- --- ---

32 23.6 1.07 Q104D

33 23.0 0.78 AS1289.3.1.1-2009

34 20.0 -0.64 AS1289 3 Series

35 --- --- ---

36 20.0 -0.64 AS1289.3.1.1

37 21.0 -0.17 AS1289.3.1.1

38 20.0 -0.64 AS1289.3.1.1

39 19.0 -1.12 AS1289.3.1.1

40 21.0 -0.17 AS1289.3.1.1

41 20.0 -0.64 AS1289.3.1.1

42 21.0 -0.17 AS1289.3.1.1

43 --- --- ---

A3.2

Liquid Limit (%)


Method

44 21.0 -0.17 AS1289.3.1.1

45 21.0 -0.17 AS1289.3.1.1 46 22.0 0.31 AS1289.3.1.1

47 20.6 -0.36 AS1289.3.1.1

48 20.0 -0.64 AS1289.5.1.1

50 21.0 -0.17 AS1289.3.1.1

51 20.0 -0.64 AS1289.3.1.1

52 20.0 -0.64 AS1289.3.1.1

53 21.0 -0.17 AS1289.3.1.1

54 23.0 0.78 AS1289.3.1.1

55 22.0 0.31 AS1289.3.1.1

56 22.0 0.31 AS1289.3.1.1

57 19.0 -1.12 AS1289.3.1.1

58 20.0 -0.64 AS1289.3.1.1 59 21.0 -0.17 AS1289.3.1.1

60 21.0 -0.17 AS1289.3.1.1 61 24.0 1.26 AS1289.3.9

62 19.0 -1.12 AS1289.3.1.1

63 24.0 1.26 AS1289.3.1.1

64 20.0 -0.64 AS1289.3.1.1

65 26.9 2.63 WA 120.2

66 22.0 0.31 AS1289.3.1.1

67 21.0 -0.17 AS1289.3.1.1

68 23.0 0.77 AS1289.3.9

69 22.0 0.31 AS1289.3.1.1

71 22.0 0.31 AS1289.3.1.1

72 19.0 -1.12 AS1289.3.2.1

73 22.2 0.40 Q104A

74 17.0 -2.06 AS1289.3.1.1

75 20.0 -0.64 AS1289.3.1.1

76 19.0 -1.12 AS1289.3.1.1

77A 22.0 0.31 AS1289.3.1.1 Wet Preparation

Method

77B 21.0 -0.17 AS1289.3.1.1 Wet Preparation

78 21.0 -0.17 AS1289.3.1.1

80 23.0 0.78 Q104A

82 20.0 -0.64 AS1289.3.1.1

83 19.0 -1.12 AS1289.3.1.1

85 22.0 0.31 AS1289.3.1.1

A3.3

Liquid Limit (%)


86 21.0 -0.17 AS1289.3.1.1

87 20.0 -0.64 AS1289.3.1.1

88 21.3 -0.02 AS1289.3.1.1

89 22.0 0.31 AS1289.3.1.1

90 20.0 -0.64 AS1289.3.1.1

91 22.2 0.40 Q104A

92 22.0 0.31 AS1289.3.1.1

93 19.0 -1.12 AS1289.3.1.1

94 23.2 0.88 Q104A

95 20.0 -0.64 AS1289.3.1.1

96 22.0 0.31 AS1289.3.1.1

97 22.0 0.31 AS1289.3.1.1

98 22.0 0.31 AS1289.3.1.1

99 20.0 -0.64 AS1289.3.1.1

100 22.0 0.31 AS1289.3.1.1

101 20.0 -0.64 AS1289.3.1.1

102 18.0 -1.59 AS1289.3.1.1

103 20.4 -0.45 AS

104 17.0 -2.06 AS1289.3.1.1

105 23.0 0.78 AS1289.3.2.1

108 25.0 1.73 AS1289.5.1.1

110 26.9 2.63 AS1289.3.1.1

113 21.5 0.07 AS1289.3.1.1

114 18.0 -1.59 AS1289.3.1.1

115 23.2 0.88 AS1289.3.9.1

116 24.0 1.26 AS1289.3.9.1 117 23.0 0.78 ASTMD 4318

118 24.0 1.26 AS1289.3.1.1

Note: § denotes an outlier (i.e. |z-score| > 3)


Summary Statistics


A4.1

Plastic Limit (%)


Method

1 --- --- ASTM D 4318

2 17.5 1.69 3.2.1

3 14.0 -0.67 AS1289.3.2.1

4 15.4 0.27 AS1289.3.2.1

5 16.0 0.67 AS1289.3.2.1

6 16.0 0.67 1289.3.2.1

8 16.0 0.67 AS1289.3.2.1

9 15.0 0.00 AS1289.3.2.1

10 17.0 1.35 AS1289.3.2.1

11 13.0 -1.35 AS1289.3.2.1

12 15.0 0.00 ---

13 15.6 0.40 Q105

14 16.0 0.67 AS1289.3.2.1

15 15.0 0.00 AS1289.3.2.1

16 15.0 0.00 AS1289.3.2.1

17 17.0 1.35 ---

18A 16.8 1.21 MR Q105 - 1987

18B 12.0 -2.02 MR Q105 - 1987

19 15.0 0.00 AS1289.3.2.1

20 14.0 -0.67 AS1289.3.2.1

21 12.0 -2.02 AS1289.3.2.1

22 17.0 1.35 ---

23 14.6 -0.27 Q105

24 17.0 1.35 AS1289.3.2.1

25 15.2 0.13 Q105 26 17.2 1.48 Q105

27 15.6 0.40 Q105

28 15.4 0.27 Q105

29 16.0 0.67 AS1289.3.2.1

31 --- --- ---

32 18.4 2.29 Q105

33 15.0 0.00 AS1289.3.2.1-2009

34 14.0 -0.67 AS1289 3 Series

35 --- --- ---

36 14.0 -0.67 AS1289.3.2.1

37 16.0 0.67 AS1289.3.2.1

38 14.0 -0.67 AS1289.3.2.1

39 15.0 0.00 AS1289.3.2.1

40 14.0 -0.67 AS1289.3.2.1

41 12.0 -2.02 AS1289.3.2.1

42 15.0 0.00 AS1289.3.2.1

43 15.0 0.00 ---

A4.2

Plastic Limit (%)


Method

44 16.0 0.67 AS1289.3.2.1

45 18.0 2.02 AS1289.3.2.1 46 15.0 0.00 AS1289.3.2.1

47 12.5 -1.69 AS1289.3.2.1

48 14.0 -0.67 AS1289.3.2.1

50 14.0 -0.67 AS1289.3.2.1

51 16.0 0.67 AS1289.3.2.1

52 16.0 0.67 AS1289.3.2.1

53 15.0 0.00 AS1289.3.2.1

54 16.0 0.67 AS1289.3.2.1

55 14.0 -0.67 AS1289.3.2.1

56 13.0 -1.35 AS1289.3.2.1

57 16.0 0.67 AS1289.3.2.1

58 15.0 0.00 AS1289.3.2.1 59 16.0 0.67 AS1289.3.2.1

60 13.0 -1.35 AS1289.3.2.1 61 15.0 0.00 AS1289.3.2.1

62 14.0 -0.67 AS1289.3.2.1

63 17.0 1.35 AS1289.3.2.1

64 14.0 -0.67 AS1289.3.2.1

65 14.6 -0.27 WA 121.1

66 15.0 0.00 AS1289.3.2.1

67 16.0 0.67 AS1289.3.2.1

68 14.3 -0.45 AS1289.3.2.1

69 16.0 0.67 AS1289.3.2.1

71 14.0 -0.67 AS1289.3.2.1

72 15.0 0.00 AS1289.3.2.1

73 15.6 0.40 Q105

74 13.0 -1.35 AS1289.3.2.1

75 15.0 0.00 AS1289.3.2.1

76 15.0 0.00 AS1289.3.2.1

77A 17.0 1.35 AS1289.3.2.1

77B 15.0 0.00 AS1289.3.2.1 Wet Preparation

78 14.0 -0.67 AS1289.3.2.1

80 16.0 0.67 ---

82 15.0 0.00 AS1289.3.2.1

83 13.0 -1.35 AS1289.3.2.1

85 14.0 -0.67 AS1289.3.2.1

A4.3

Plastic Limit (%)


86 16.0 0.67 AS1289.3.2.1

87 15.0 0.00 AS1289.3.2.1

88 12.7 -1.55 AS1289.3.2.1

89 16.0 0.67 AS1289.3.2.1

90 14.0 -0.67 AS1289.3.2.1

91 14.8 -0.13 Q105

92 16.0 0.67 AS1289.3.2.1

93 16.0 0.67 AS1289.3.2.1

94 16.2 0.81 Q105

95 15.0 0.00 AS1289.3.2.1

96 17.0 1.35 AS1289.3.2.1

97 16.0 0.67 AS1289.3.2.1

98 14.0 -0.67 AS1289.3.2.1

99 16.0 0.67 AS1289.3.2.1

100 15.0 0.00 AS1289.3.2.1

101 14.0 -0.67 AS1289.3.2.1

102 16.0 0.67 AS1289.3.2.1

103 15.7 0.47 AS

104 12.0 -2.02 AS1289.3.2.1

105 18.0 2.02 AS1289.3.2.1

108 13.0 -1.35 AS1289.3.2.1

110 17.6 1.75 AS1289.3.2.1

113 13.3 -1.15 AS1289.3.2.1

114 14.0 -0.67 AS1289.3.2.1

115 11.8 -2.16 AS1289.3.3.2

116 15.0 0.00 AS1289.3.2.1 117 14.0 -0.67 ASTMD4318

118 14.0 -0.67 AS1289.3.2.1

Note: § denotes an outlier (i.e. |z-score| > 3)


Summary Statistics


A5.1



Method

1 --- --- ASTM D 4318

2 6.0 0.00 3.3.1

3 5.0 -0.54 AS1289.3.3.2

4 6.0 0.00 AS1289.3.3.1

5 5.0 -0.54 AS1289.3.3.1

6 5.0 -0.54 1289.3.3.1

8 5.0 -0.54 AS1289.3.3.1

9 7.8 0.97 AS1289.3.3.1

10 7.0 0.54 AS1289.3.3.1

11 6.0 0.00 AS1289.3.3.1

12 7.0 0.54 ---

13 7.0 0.54 Q105

14 5.0 -0.54 AS1289.3.3.1

15 6.0 0.00 AS1289.3.3.1

16 8.0 1.08 AS1289.3.3.1

17 7.0 0.54 ---

18A 6.6 0.32 MR Q105 - 1987

18B 10.6 2.48 MR Q105 - 1987

19 10.0 2.16 AS1289.3.3.1

20 6.0 0.00 AS1289.3.3.1

21 10.0 2.16 AS1289.3.3.1

22 7.0 0.54 ---

23 7.0 0.54 Q105

24 7.0 0.54 AS1289.3.3.2

25 8.0 1.08 Q105 26 6.0 0.00 Q105

27 6.2 0.11 Q105

28 6.4 0.22 Q105

29 5.0 -0.54 AS1289.3.3.1

31 --- --- ---

32 5.2 -0.43 Q105

33 8.0 1.08 AS1289.3.1.1-2009

34 6.0 0.00 AS1289 3 Series

35 --- --- ---

36 6.0 0.00 AS1289.3.3.1

37 5.0 -0.54 AS1289.3.3.1

38 6.0 0.00 AS1289.3.3.1

39 4.0 -1.08 AS1289.3.3.1

40 7.0 0.54 AS1289.3.3.1

41 8.0 1.08 AS1289.3.3.1

42 6.0 0.00 AS1289.3.3.1

43 --- --- ---

A5.2



44 5.0 -0.54 AS1289.3.3.1

45 3.0 -1.62 AS1289.3.3.1 46 7.0 0.54 AS1289.3.3.1

47 8.1 1.13 AS1289.3.3.1

48 6.0 0.00 AS1289.3.3.1

50 7.0 0.54 AS1289.3.3.1

51 4.0 -1.08 AS1289.3.3.1

52 4.0 -1.08 AS1289.3.3.1

53 6.0 0.00 AS1289.3.3.1

54 7.0 0.54 AS1289.3.3.1

55 8.0 1.08 AS1289.3.3.1

56 9.0 1.62 AS1289.3.3.1

57 3.0 -1.62 AS1289.3.3.1

58 5.0 -0.54 AS1289.3.3.1 59 5.0 -0.54 AS1289.3.3.1

60 8.0 1.08 AS1289.3.3.1 61 8.8 1.51 AS1289.3.3.2

62 5.0 -0.54 AS1289.3.3.1

63 7.0 0.54 AS1289.3.3.1

64 6.0 0.00 AS1289.3.3.1

65 12.3 3.40 (+) WA 122.1

66 7.0 0.54 AS1289.3.3.1

67 5.0 -0.54 AS1289.3.3.1

68 8.6 1.42 AS1289.3.3.2

69 6.0 0.00 AS1289.3.3.1

71 8.0 1.08 AS1289.3.3.1

72 4.0 -1.08 AS1289.3.3.1

73 6.6 0.32 Q105

74 4.0 -1.08 AS1289.3.3.1

75 5.0 -0.54 AS1289.3.3.1

76 4.0 -1.08 AS1289.3.3.1

77A 5.0 -0.54 AS1289.3.3.1

77B 6.0 0.00 AS1289.3.3.1 Wet Preparation

78 7.0 0.54 AS1289.3.3.1

80 7.0 0.54 Q105

82 5.0 -0.54 AS1289.3.3.1

83 6.0 0.00 AS1289.3.3.1

85 8.0 1.08 AS1289.3.3.1

86 5.0 -0.54 AS1289.3.3.1

87 5.0 -0.54 AS1289.3.3.1

88 8.6 1.40 AS1289.3.3.1

A5.3



89 6.0 0.00 AS1289.3.3.1

90 6.0 0.00 AS1289.3.3.1

91 7.4 0.76 Q105

92 6.0 0.00 AS1289.3.3.1

93 3.0 -1.62 AS1289.3.3.1

94 7.0 0.54 Q105

95 5.0 -0.54 AS1289.3.3.1

96 5.0 -0.54 AS1289.3.3.1

97 6.0 0.00 AS1289.3.3.1

98 8.0 1.08 AS1289.3.3.1

99 4.0 -1.08 AS1289.3.3.1

100 7.0 0.54 AS1289.3.3.1

101 6.0 0.00 AS1289.3.3.1

102 2.0 -2.16 AS1289.3.3.1

103 4.7 -0.70 AS

104 5.0 -0.54 AS1289.3.3.1

105 5.0 -0.54 AS1289.3.3.1

108 13.0 3.78 § AS1289.3.3.1

110 9.8 2.05 AS1289.3.3.1

113 8.2 1.19 AS1289.3.3.1

114 4.0 -1.08 AS1289.3.3.1

115 11.4 2.91 AS1289.3.3.2

116 9.0 1.62 AS1289.3.3.1 117 9.0 1.62 ASTM D 4318

118 10.0 2.16 AS1289.3.3.1

Note: § denotes an outlier (i.e. |z-score| > 3) Note: (+) denotes that the laboratory used a method giving a positive bias therefore the result is deemed to be satisfactory.


Summary Statistics


A6.1


Lab Code Result Method

1 3.0 ASTM 4943 - 08

2 3.0 3.4.1

3 3.0 AS1289.3.4.1

4 2.0 AS1289.3.4.1

5 2.5 AS1289.3.4.1

6 2.0 1289.3.4.1

8 3.5 AS1289.3.4.1

9 3.5 AS1289.3.4.1

10 4.5 AS1289.3.4.1

11 1.5 AS1289.3.4.1

12 3.0 ---

13 3.8 Q106

14 3.5 AS1289.3.4.1

15 3.0 AS1289.3.4.1

16 3.0 AS1289.3.4.1

17 2.5 ---

18A 3.5 MR Q106 - 1989

18B 3.0 MR Q106 - 1989

19 5.0 AS1289.3.4.1

20 2.5 AS1289.3.4.1

21 3.0 AS1289.3.4.1

22 3.0 ---

23 3.0 Q106

24 3.0 AS1289.3.4.1

25 4.0 Q106 26 3.0 Q106

27 3.6 Q106

28 3.8 Q106

29 2.5 AS1289.3.4.1

31 --- ---

32 --- Q106

33 2.5 AS1289.3.4.1-2008

34 3.0 AS1289 3 Series

35 --- ---

36 2.0 AS1289.3.4.1

37 2.5 AS1289.3.4.1

38 2.5 AS1289.3.4.1

39 2.0 AS1289.3.4.1

40 2.0 AS1289.3.4.1

41 2.5 AS1289.3.4.1

42 3.0 AS1289.3.4.1

43 2.5 ---

A6.2



44 3.0 AS1289.3.4.1

45 2.0 AS1289.3.4.1 46 3.0 AS1289.3.4.1

47 2.5 AS1289.3.4.1

48 2.5 AS1289.3.4.1

50 2.5 AS1289.3.4.1

51 2.0 AS1289.3.4.1

52 2.0 AS1289.3.4.1

53 3.0 AS1289.3.4.1

54 2.0 AS1289.3.4.1

55 3.0 AS1289.3.4.1

56 2.5 AS1289.3.4.1

57 2.0 AS1289.3.4.1

58 3.0 AS1289.3.4.1 59 2.0 AS1289.3.4.1

60 2.0 AS1289.3.4.1 61 4.5 AS1289.3.4.1

62 2.5 AS1289.3.4.1

63 3.5 AS1289.3.4.1

64 2.0 AS1289.3.4.1

65 3.5 WA 123.1

66 2.5 AS1289.3.4.1

67 2.5 AS1289.3.4.1

68 1.5 AS1289.3.4.1

69 2.5 AS1289.3.4.1

71 3.5 AS1289.3.4.1

72 1.0 AS1289.3.4.1

73 3.6 Q106

74 2.0 AS1289.3.4.1

75 3.0 AS1289.3.4.1

76 3.0 AS1289.3.4.1

77A 2.5 AS1289.3.4.1

77B 2.5 AS1289.3.4.1 Wet Preparation

78 3.0 AS1289.3.4.1

80 3.5 Q106

82 2.0 AS1289.3.4.1

83 2.5 AS1289.3.4.1

85 4.0 AS1289.3.4.1

A6.3



86 3.0 AS1289.3.4.1

87 3.0 AS1289.3.4.1

88 3.2 AS1289.3.4.1

89 2.5 AS1289.3.4.1

90 3.0 AS1289.3.4.1

91 2.5 Q106

92 2.5 AS1289.3.4.1

93 2.5 AS1289.3.4.1

94 3.5 Q106

95 2.0 AS1289.3.4.1

96 3.0 AS1289.3.4.1

97 2.5 AS1289.3.4.1

98 2.5 AS1289.3.4.1

99 2.0 AS1289.3.4.1

100 4.0 AS1289.3.4.1

101 2.0 AS1289.3.4.1

102 1.0 AS1289.3.4.1

103 3.5 AS

104 1.5 AS1289.3.4.1

105 2.5 AS1289.3.4.1

108 2.0 AS1289.3.4.1

110 4.2 AS1289.3.4.1

113 3.0 AS1289.3.4.1

114 1.0 AS1289.3.4.1

115 3.4 AS1289.3.4.1

116 3.0 AS1289.3.4.1 117 3.0 BS 1377 Part 2 1990 Test - 6.5

118 3.0 AS1289.3.4.1


Summary Statistics


A7.1


Lab Code Result Method Lab Code Result Method 1 6 ASTM D 422 - 63 57 0 AS1289.5.1.1 2 --- --- 58 0 --- 3 0 AS1289.5.1.1 59 0 AS1289.5.1.1 4 0 AS1289.5.1.1 60 0 AS1289.5.1.1 5 0.0 --- 61 0 AS1289.5.4.1 6 0.0 1289.5.1.1 62 0 AS1289.5.1.1 8 0 --- 63 0 AS1289 9 0 AS1289.5.1.1 64 0 ---

10 0 AS1289.5.1.1 65 0 WA 133.1 11 0 AS1289.5.1.1 66 0 --- 12 0 --- 67 0 AS1289.5.4.1 13 0 AS1289.5.1.1 68 0 --- 14 0 AS1289.5.1.1 69 --- --- 15 --- --- 71 0 --- 16 0 AS1289.5.1.1 72 0 AS1289.5.1.1 17 --- --- 73 0 Q101

18A 0 MR Q110A - 1996 74 0 --- 18B 0 MR Q110A - 1996 75 0 AS1289.5.1.1 19 0 AS1289.5.1.1 76 0 AS1289.5.1.1

20 0 AS1289.5.1.1 77A 0 AS1289.1.1,

AS1289.5.1.1

21 0 --- 77B 0 AS1289.1.1,

AS1289.5.1.1

22 0 --- 78 0 --- 23 0 AS1289.5.1.1 80 0 --- 24 0 AS1289.5.1.1 82 0 AS1289.5.1.1 25 --- --- 83 0 AS1289.5.1.1 26 0 Q110A 85 --- --- 27 0 --- 86 --- --- 28 0 AS1289.5.1.1 87 --- --- 29 0.0 AS1289.5.1.1 88 --- --- 31 0.0 --- 89 0 RTA T106 32 --- --- 90 0 --- 33 0 AS1289.5.1.1-2003 91 0 Q103A 34 0.0 AS1289.5.1.1 92 0 AS1289.5.1.1, T111

35 0 1289.5.1.1 93 0 AS1289.5.1.1 36 0 --- 94 0 Q110A 37 0 AS1289.5.1.1 95 0.0 AS1289.5.1.1 38 0 AS1289.5.1.1 96 0 AS1289.5.1.1 39 0 AS1289.5.4.1 97 0 AS1289.5.1.1 40 0 AS1289.5.4.1 98 0 AS1289.5.1.1 41 0 AS1289.5.4.1 99 0 AS1289.5.1.1 42 0 AS1289.5.1.1 100 0 AS1289.5.1.1 43 0 --- 101 0.0 AS1289.3.6.1 44 0 AS1289.5.1.1 102 --- --- 45 0 --- 103 0.0 --- 46 0 AS1289.5.4.1 104 --- --- 47 0 AS1289 105 --- --- 48 0 --- 108 0.1 AS1289.5.1.1 50 0.0 AS1289.5.1.1 110 --- --- 51 --- --- 113 0 AS1289.5.4.1 52 0 AS1289.5.1.1 114 0 --- 53 0 AS1289.1.1 115 0 AS1289.5.1.1 54 0 AS1289.5.4.1 116 0 TMWA 115.2 55 0 --- 117 0 BS 1377 Part 4 1990

56 0 AS1289.5.1.1 118 0 Screened through

19.0mm sieve


APPENDIX B

Homogeneity Testing

B1.1

HOMOGENIETY TESTING

Ten numbers were randomly generated and the samples labelled with these numbers were tested for homogeneity. With the exclusion of the Linear Shrinkage test, statistical analysis of the results indicated that no noticeable sample variability existed. Therefore, it was concluded that any outlier results subsequently identified could not be attributed to sample variability.

Sample Number 7 29 31 44 75 77 82 104 105 132

Dry Density (0.001t/m³)

2.063 2.072 2.073 2.066 2.079 2.069 2.089 2.094 2.085 2.071


9.2 8.5 9.1 8.4 8.6 8.9 8.6 8.6 9.1 8.6

Liquid Limit (%)

20.0 20.0 20.0 20.0 19.0 19.0 20.0 19.0 20.0 20.0

Plastic Limit (%)

16.0 16.0 16.0 16.0 16.0 16.0 17.0 16.0 16.0 16.0


4.0 4.0 4.0 4.0 3.0 3.0 3.0 4.0 4.0 4.0

Linear Shrinkage (%)

2.0 2.0 2.0 1.5 2.0 1.5 2.0 1.5 2.0 2.0

APPENDIX C

Instructions to Participants

Results Sheet

C1

Page 1 of 1

PROFICIENCY TESTING AUSTRALIA Proficiency Testing Program

Soils Round 9

INSTRUCTIONS TO PARTICIPANTS

Please read instructions carefully BEFORE commencing testing. To ensure that the results of this program can be analysed properly, participants are asked to carefully note the following: 1. One soil sample of approximately 13 to 16 kg is supplied to each laboratory. 2. The following tests are to be conducted: •Laboratory Compaction • Liquid Limit • Plastic Limit •Plasticity Index •Linear Shrinkage 3. These tests are based on AS1289, however other methods may be used.

Laboratory Compaction AS1289.5.1.1. Soil compaction and density tests - Determination of the dry density/moisture content relation of a soil using standard compactive effort.

Liquid Limit

AS1289.3.1.1. Determination of the liquid limit of a soil – Four point Casagrande Method.

Plastic Limit AS1289.3.2.1. Determination of the plastic limit of a soil – standard method.

Plasticity Index

AS1289.3.3.1. Calculation of the plasticity index of a soil.

Linear Shrinkage.

AS1289.3.4.1. Determination of the linear shrinkage of a soil – standard method. 4. For each test on the sample the result is to be reported on the results sheet to the accuracy and reporting basis indicated. 5. Testing may commence as soon as the sample is received. All laboratories must return the result sheet no later than Friday 13 November 2009 to: Ray Sultan Proficiency Testing Australia PO Box 7507 SILVERWATER NSW 2128 Phone: 02 9736 8397 Fax: 02 9743 6664 Email: [email protected]

mailto:[email protected]�

C2

PROFICIENCY TESTING AUSTRALIA Soils 9 - Proficiency Testing Program

Results Sheet

Lab Code:

Test (report to)

Result Method

Dry Density (0.001 t/m3)



Liquid Limit (%)

Plastic Limit (%)



Return no later than Friday 13 November 2009 to:

Ray Sultan, Proficiency Testing Australia

PO Box 7507, Silverwater, NSW, 2128 Fax: 02 9743 6664 Email: [email protected]

Signed:

Date:

mailto:[email protected]�

----- End of report -----