Z-score Summary - Plasticity Proficiency Testing Program (79) Z-SCORES SUMMARY. Plasticity May 2018(79)

Transcription

1 Z-SCORES SUMMARY Plasticity May 2018(79) The proficiency program was conducted in May 2018 with participants throughout Australia. AS 1289 test methods were preferred but other methods were allowed in this program. This summary provides the z-scores for the following tests. AS Determination of the liquid limit of a soil Four point Casagrande method AS Determination of the plastic limit of a soil Standard Method AS Calculation of the plasticity index of a soil AS Determination of the linear shrinkage of a soil Standard Method AS Determination of the particle density of a soil Standard Method A z-score summary is provided to allow participants to gauge performance and address outliers as early as possible. It is recommended that any remedial action be undertaken cautiously until the final report for the program has been consulted. The z-scores shown are unlikely to change significantly. Small changes however may become necessary during preparation of the final report. The final report provides other information, apart from z-scores, that may be used to access performance and interpret the significance of outliers. Participants may forward the summary report to NATA as an indication of a participant s general performance. All participants need to assess their overall performance once the final report has been issued. The final report once issued supersedes the z-score summary. Please direct questions to: Contact: Peter Young Fax: (03) Web: petery@labsmartservices.com.au Copyright: LabSmart Services Pty Ltd Issued: 5/6/2018 Page 1 of 9

2 Sample A - Liquid Limit: Z - Scores Z R B J U N C L E E V U W J N D S P Z V A Q C U Q Y B U Z M Q V T P7 NR N R2 NR E Q Number of results 36 Median 67.5 Median MU 0.97 First Quartile 63.8 Third Quartile 70.0 IQR 6.25 Normalised IQR 4.63 CV () 6.9 Minimum 55.0 () Maximum 81.0 () Range 26.0 () 3 or less than -3. s for all participates are shown. The results column Copyright: LabSmart Services Pty Ltd Issued: 5/6/2018 Page 2 of 9

3 Sample A - Plastic Limit: Z - Scores Z R B J U N C L E E V U W J N D S P Z V # A Q C U Q Y B U Z M Q V T P7 NR N R E Q Median 25.0 Median MU 0.76 First Quartile 23.0 Third Quartile 28.0 IQR 5.00 Normalised IQR 3.71 CV () 14.8 Minimum 22.0 (22.0) Maximum 34.0 (40.3) Range 12.0 (18.3) 3 or less than -3. s for all participates are shown. The results column Copyright: LabSmart Services Pty Ltd Issued: 5/6/2018 Page 3 of 9

4 Sample A - Plasticity Index: Z - Scores Z R B J U N C L E E V U W J N D # S P Z V A Q C U Q Y B U Z M Q V T P7 NR N R E Q Median 40.0 Median MU 1.07 First Quartile 38.0 Third Quartile 45.0 IQR 7.00 Normalised IQR 5.19 CV () 13.0 Minimum 28.0 (28.0) Maximum 48.0 (58.0) Range 20.0 (30.0) 3 or less than -3. s for all participates are shown. The results column Copyright: LabSmart Services Pty Ltd Issued: 5/6/2018 Page 4 of 9

5 Sample A - Linear Shrinkage: Z - Scores Z R B J U N C L E E V U W J N D S P Z V A Q C U Q Y B U Z M Q V T P7 NR N R E Q Median 10.5 Median MU 0.53 First Quartile 8.5 Third Quartile 12.0 IQR 3.50 Normalised IQR 2.59 CV () 24.7 Minimum 5.5 () Maximum 15.0 () Range 9.5 () 3 or less than -3. s for all participates are shown. The results column Copyright: LabSmart Services Pty Ltd Issued: 5/6/2018 Page 5 of 9

6 Sample B - Liquid Limit: Z - Scores Z R B J U N C L E E V U W J N D S P Z V A Q C U Q Y6 NR B U Z M Q V T P N R2 NR E Q Number of results 36 Median 47.0 Median MU 0.62 First Quartile 45.0 Third Quartile 49.0 IQR 4.00 Normalised IQR 2.97 CV () 6.3 Minimum 40.0 () Maximum 54.6 () Range 14.6 () 3 or less than -3. s for all participates are shown. The results column Copyright: LabSmart Services Pty Ltd Issued: 5/6/2018 Page 6 of 9

7 Sample B - Plastic Limit: Z - Scores Z R B J U N C L E E V U W J N # D S P Z V A Q C U Q Y6 NR B U Z M Q V T P N R E Q Median 25.0 Median MU 0.30 First Quartile 25.0 Third Quartile 27.0 IQR 2.00 Normalised IQR 1.48 CV () 5.9 Minimum 22.0 (22.0) Maximum 29.0 (32.0) Range 7.0 (10.0) 3 or less than -3. s for all participates are shown. The results column Copyright: LabSmart Services Pty Ltd Issued: 5/6/2018 Page 7 of 9

8 Sample B - Plasticity Index: Z - Scores Z R B # J U N C L E E V U W J N D S P Z V A Q C U Q Y6 NR B U Z M Q V T P N R E Q Median 22.0 Median MU 0.61 First Quartile 19.0 Third Quartile 23.0 IQR 4.00 Normalised IQR 2.97 CV () 13.5 Minimum 15.0 (13.0) Maximum 28.0 (28.0) Range 13.0 (15.0) 3 or less than -3. s for all participates are shown. The results column Copyright: LabSmart Services Pty Ltd Issued: 5/6/2018 Page 8 of 9

9 Sample B - Linear Shrinkage: Z - Scores Z R B J U N C L E E V U # W J N D S P Z V A Q C U Q Y6 NR B U Z M Q V T P N R E Q Median 7.0 Median MU 0.23 First Quartile 6.5 Third Quartile 8.0 IQR 1.50 Normalised IQR 1.11 CV () 15.9 Minimum 4.0 (4.0) Maximum 9.5 (11.0) Range 5.5 (7.0) 3 or less than -3. s for all participates are shown. The results column Copyright: LabSmart Services Pty Ltd Issued: 5/6/2018 Page 9 of 9