www.labsmartservices.com.au Z-SCORES SUMMARY Concrete April 2017 (70) The proficiency program was conducted in April 2017 with participants throughout Australia. AS 1012 test methods were preferred but other methods were allowed in this program. This summary provides the z-scores for the following tests. Compressive Strength Mass per Unit Volume 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. Evaluation of the homogeneity test results indicated that sample A and B were homogenous. However, evaluation of participants results indicated that there were variations associated with cylinder production. Consequently, both sample A and B were split into two. Participants will find that their code appears once in either sample A1 or A2 and in either B1 or B2. Participants may forward the summary report to NATA as an indication of a participant s general performance. 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. The final report once issued supersedes the z-score summary. All participants need to assess their overall performance once the final report has been issued. Please direct questions to: Contact: Peter Young - 0432 767 706 Fax: (03) 8888 4987 E-mail: Web: petery@labsmartservices.com.au www.labsmartservices.com.au Copyright: LabSmart Services Pty Ltd Issued - 26 April 2017 Page 1 of 9
Sample A1 - Compressive Strength: Z - Scores Test Result Z7 53.4-0.85 W5 57.9 0.56 W9 50.5-1.76 Q4 57.2 0.35 T6 52.0-1.29 S7 56.8 0.22 S2 50.7-1.69 K6 56.1 0.00 N7 49.7-2.01 J5 53.4-0.85 Y6 55.9-0.06 B9 56.0-0.03 Z3 58.1 0.63 M6 50.6-1.73 V8 58.5 0.75 N3 59.2 0.97 D4 57.3 0.38 X8 43.5-3.95 # J6 58.8 0.85 C4 55.9-0.06 V5 T5 54.9-0.38 V3 58.5 0.75 V9 56.3 0.06 T3 57.0 0.28 X5 49.6-2.04 B6 T4 58.0 0.60 X9 58.7 0.82 U8 41.4-4.61 # M4 57.7 0.50 W6 51.0-1.60 W7 56.5 0.13 D2 55.5-0.19 N6 55.7-0.13 B7 57.0 0.28 S5 60.0 1.22 J7 56.5 0.13 L9 54.9-0.38 Test Result Number of results 37 Median 56.10 Median MU 0.66 First Quartile 53.40 Third Quartile 57.70 IQR 4.30 Normalised IQR 3.19 CV (%) 5.7 Minimum 49.6 (41.4) Maximum 60.0 (60.0) Range 10.4 (18.6) greater then 3 or less than -3. s for all participates are shown. The results column shows a blank entry for those participants that did not submit a result for this test. Minimum, Maximum and Range are calculated with outliers excluded, those in brackets include outliers. Particpants results that have been corrected are shown in green. Copyright: LabSmart Services Pty Ltd Issued - 26 April 2017 Page 2 of 9
Sample A1 - Mass per Unit Volume: Z - Scores Test Result t/m 3 Z7 2311 0.85 W5 2301 0.08 W9 2301 0.08 Q4 2296-0.31 T6 2280-1.54 S7 S2 2301 0.08 K6 2302 0.15 N7 2286-1.08 J5 2290-0.77 Y6 2316 1.23 B9 2312 0.93 Z3 2300 0.00 M6 2293-0.54 V8 2304 0.31 N3 2300 0.00 D4 2291-0.69 X8 J6 2301 0.08 C4 2268-2.47 V5 T5 2283-1.31 V3 2326 2.00 V9 2338 2.93 T3 2295-0.39 X5 2290-0.77 B6 T4 2291-0.69 X9 2288-0.93 U8 2260-3.08 # M4 2312 0.93 W6 2303 0.23 W7 2313 1.00 D2 2300 0.00 N6 2292-0.62 B7 2314 1.08 S5 2282-1.39 J7 2317 1.31 L9 2288-0.93 Test Result t/m 3 Number of results 35 Median 2300 Median MU 2.7 First Quartile 2290 Third Quartile 2308 IQR 17.5 Normalised IQR 13.0 CV (%) 0.6 Minimum 2268 (2260) Maximum 2338 (2338) Range 70 (78) greater then 3 or less than -3. s for all participates are shown. The results column shows a blank entry for those participants that did not submit a result for this test. Minimum, Maximum and Range are calculated with outliers excluded, those in brackets include outliers. Particpants results that have been corrected are shown in green. Copyright: LabSmart Services Pty Ltd Issued - 26 April 2017 Page 3 of 9
Sample A2 - Compressive Strength: Z - Scores L2 54.8-0.46 K8 53.2-1.58 D3 55.4-0.04 D9 54.6-0.60 M7 55.3-0.11 U6 55.5 0.04 X7 56.2 0.53 L8 58.1 1.86 T7 55.6 0.11 S8 52.5-2.07 K2 56.6 0.81 A5 56.9 1.02 P5 59.2 2.63 B2 51.3-2.91 N8 55.0-0.32 A3 54.5-0.67 Y8 57.6 1.51 J9 56.6 0.81 P3 55.0-0.32 R2 59.5 2.84 Number of results 20 Median 55.45 Median MU 0.40 First Quartile 54.75 Third Quartile 56.68 IQR 1.93 Normalised IQR 1.43 CV (%) 2.6 Minimum 51.3 () Maximum 59.5 () Range 8.2 () greater then 3 or less than -3. s for all participates are shown. The outliers excluded, those in brackets include outliers. Copyright: LabSmart Services Pty Ltd Issued - 26 April 2017 Page 4 of 9
Sample A2 - Mass per Unit Volume: Z - Scores kg/m 3 L2 2370-0.11 K8 2377 0.68 D3 2374 0.34 D9 2333-4.30 # M7 2374 0.34 U6 2364.1-0.78 X7 2359-1.36 L8 2378 0.79 T7 2352-2.15 S8 2380 1.02 K2 2369-0.23 A5 2374 0.34 P5 2375 0.45 B2 2378 0.79 N8 2360-1.24 A3 2369-0.23 Y8 2366-0.57 J9 2383 1.36 P3 2362-1.02 R2 2372 0.11 Number of results 20 Median 2371 Median MU 2.47 First Quartile 2364 Third Quartile 2376 IQR 11.9 Normalised IQR 8.8 CV (%) 0.4 Minimum 2352 (2333) Maximum 2383 (2383) Range 31 (50) greater then 3 or less than -3. s for all participates are shown. The outliers excluded, those in brackets include outliers. Copyright: LabSmart Services Pty Ltd Issued - 26 April 2017 Page 5 of 9
Sample B1 - Compressive Strength: Z - Scores L2 44.2 0.20 Z7 41.5-0.87 K8 45.1 0.55 W9 40.0-1.46 T6 43.8 0.04 D3 46.5 1.10 S2 40.6-1.22 N7 46.6 1.14 D9 41.1-1.02 Y6 43.3-0.16 M7 41.7-0.79 U6 43.6-0.04 Z3 41.8-0.75 V8 44.8 0.43 D4 42.8-0.35 J6 46.9 1.26 V5 X7 41.6-0.83 V3 42.2-0.59 L8 48.2 1.77 V9 43.9 0.08 T7 44.2 0.20 S8 43.6-0.04 T3 46.0 0.91 K2 41.7-0.79 X5 36.5-2.84 B6 T4 45.2 0.59 X9 44.7 0.39 A5 45.8 0.83 Number of results 28 Median 43.70 Median MU 0.60 First Quartile 41.70 Third Quartile 45.13 IQR 3.43 Normalised IQR 2.54 CV (%) 5.8 Minimum 36.5 () Maximum 48.2 () Range 11.7 () greater then 3 or less than -3. s for all participates are shown. The outliers excluded, those in brackets include outliers. Copyright: LabSmart Services Pty Ltd Issued - 26 April 2017 Page 6 of 9
Sample B1 - Mass per Unit Volume: Z - Scores L2 2353 2.17 Z7 2347 1.82 K8 2350 1.99 W9 2320 0.23 T6 2300-0.94 D3 2344 1.64 S2 2327 0.65 N7 2307-0.53 D9 2378 3.64 # Y6 2334 1.06 M7 2313-0.18 U6 2312.07-0.23 Z3 2320 0.23 V8 2316 0.00 D4 2316 0.00 J6 2302-0.82 V5 X7 2306-0.59 V3 2309-0.41 L8 2333 1.00 V9 2325 0.53 T7 2297-1.11 S8 2306-0.59 T3 2331 0.88 K2 2315-0.06 X5 2300-0.94 B6 T4 2321 0.29 X9 2315-0.06 A5 2315-0.06 kg/m 3 Number of results 28 Median 2316 Median MU 4.0 First Quartile 2309 Third Quartile 2332 IQR 23.0 Normalised IQR 17.0 CV (%) 0.7 Minimum 2297 (2297) Maximum 2353 (2378) Range 56 (81) greater then 3 or less than -3. s for all participates are shown. The outliers excluded, those in brackets include outliers. Particpants results that have been corrected are shown in green. Copyright: LabSmart Services Pty Ltd Issued - 26 April 2017 Page 7 of 9
Sample B2 - Compressive Strength: Z - Scores U8 38.3 0.00 M4 35.3-0.94 P5 37.7-0.19 W6 32.5-1.82 B2 41.3 0.94 W7 38.2-0.03 N8 48.5 3.20 # D2 42.5 1.32 N6 40.9 0.82 B7 37.6-0.22 S5 36.6-0.53 J7 35.4-0.91 A3 36.0-0.72 L9 38.4 0.03 Y8 39.0 0.22 W5 39.7 0.44 J9 42.3 1.25 Q4 39.3 0.31 P3 35.6-0.85 S7 39.5 0.38 K6 37.5-0.25 J5 35.7-0.82 B9 39.0 0.22 M6 30.1-2.57 N3 43.3 1.57 X8 34.6-1.16 R2 37.4-0.28 C4 40.3 0.63 T5 40.4 0.66 Number of results 29 Median 38.30 Median MU 0.74 First Quartile 36.00 Third Quartile 40.30 IQR 4.30 Normalised IQR 3.19 CV (%) 8.3 Minimum 30.1 (30.1) Maximum 43.3 (48.5) Range 13.2 (18.4) greater then 3 or less than -3. s for all participates are shown. The outliers excluded, those in brackets include outliers. Particpants results that have been corrected are shown in green. Copyright: LabSmart Services Pty Ltd Issued - 26 April 2017 Page 8 of 9
Sample B2 - Mass per Unit Volume: Z - Scores U8 2240-0.86 M4 2257-0.13 P5 2258-0.09 W6 2257-0.13 B2 2283 0.98 W7 2294 1.46 N8 2260 0.00 D2 2280 0.86 N6 2291 1.33 B7 2266 0.26 S5 2234-1.11 J7 2276 0.69 A3 2235-1.07 L9 2286 1.11 Y8 2249-0.47 W5 2268 0.34 J9 2283 0.98 Q4 2268 0.34 P3 2250-0.43 S7 K6 2249-0.47 J5 2274 0.60 B9 2286 1.11 M6 2257-0.13 N3 2200-2.57 X8 R2 2244-0.69 C4 2244-0.69 T5 2281 0.90 kg/m 3 Number of results 27 Median 2260 Median MU 5.6 First Quartile 2249 Third Quartile 2281 IQR 31.5 Normalised IQR 23.4 CV (%) 1.0 Minimum 2200 () Maximum 2294 () Range 94 () greater then 3 or less than -3. s for all participates are shown. The outliers excluded, those in brackets include outliers. Copyright: LabSmart Services Pty Ltd Issued - 26 April 2017 Page 9 of 9