<p><p><strong>Reference(s):</strong></p><p><em>Perkins et al. (2000)</em></p><p><strong>Method Summary.</strong></p><p>Oedometer experiments were performed on specimens to estimate the effects of bio-film on one‑dimensional compression and secondary compression behavior. After applying vertical stresses ranging from 15 to 4,500 kPa to a specimen, the displacement is measured by a dial gage. The oedometer experiments consist of two types. The first type is performed to assess the primary consolidation of specimen with and without biofilm. This type of test can be achieved by measuring vertical displacement every 5 seconds. The next load increment should be applied to the specimen immediately after recording the displacement of the previous load increment. The second type is measuring the displacement over a 24-hour period after each load increment.</p><p><strong>Accuracy and Precision</strong></p><p>The accuracy and precision of this method are medium.</p><p><strong>Adequacy of Coverage</strong></p><p>The adequacy of coverage of this method is low.</p><p><strong>Implementation Requirements </strong></p><p>This method has medium implementation requirements.</p><p><strong>General Comments</strong></p><p>Oedometer experiments could be used to estimate the effect of bio-film by measuring the variation in displacement of samples containing different amounts of biofilm.</p></p>