31. These properties can be measured economically and accurately in the laboratory, using standard tests . 32. Clogged nozzles can be detected by printing a standard test pattern on the page. 33. About 74 percent supported using a standard test in California to measure student achievement. 34. The researchers used standard tests and rating scales to gauge the patients'degree of depression. 35. "He was perfectly normal by standard tests and had no indication of Alzheimer's disease. 36. Standard test methods are available for measuring the oxygen transmission rate of packaging materials.37. Another standard test is to measure the number of white cells in the blood. 38. Most bleeding, you can figure out with a standard test . 39. Their virus levels dropped so low they could not be found on standard tests . 40. Also, these images are freely availiable from any number of standard test image repositories.
