Introduction to ASTM E1169
ASTM E1169 is typically conducted when it is desired to look at a lot of potential factors to figure out which ones could have the biggest impact on a test method’s outcome. The factor impacts can be determined more effectively and economically with statistical design than if individual tests were conducted for each element. The suggested designs are simple to utilize in creating the data required for assessing quantitative test procedures. MaTestLab is one of the best testing service providers, with the best network of testing laboratories in the USA to carry out ASTM E1169 tests for our clients.
To ascertain whether the outcomes or choices will be largely invariant across a range of environmental variability that the test method or the model is likely to be applied under, it is helpful to assess the “ruggedness” of an empirical model or test method that is derived from an experiment.
ASTM E1169 Test Method
| Identification and changing factors | Making methodical adjustments to the variables, sometimes referred to as factors, and then monitoring the impact of those adjustments on the test outcome of each run are necessary for conducting a ruggedness test. Factors are aspects of the laboratory setup or the test procedure that are known to differ between labs and are controlled by the test procedure. |
| Executing runs | Runs are arranged and executed in a random order and then they are statistically analyzed. |
ASTM E1169 Test Specimen
| Specimen Detail | ASTM E1169 is limited to two-level designs for each element. |
| Specimen Size | Specimen size is not specified. |
ASTM E1169 Test Result
A “screening” experiment design is commonly used to assess the ASTM E1169 test method’s ruggedness. It focuses on first-order effects and assumes negligible second-order effects like interactions and curvature. If the test method’s results are highly dependent on environmental factors, the method may need to be revised, or specifications may need to be adjusted to account for certain levels of environmental factors.
ASTM E1169 Related Tests
ASTM E1169 is related to tests, including ASTM E456 for statistical and quality assessment, ASTM E1325 for experimental design, and ASTM E1488 for using statistics in test procedures.
