PPTS also collects information about ILI tool use in segments of pipe that have had a release, and across the system as a whole.
PPTS uses four categories of tools--metal loss, dent or deformation, crack tools and other.
In addition, PPTS is collecting information on the share of the system that has been inspected specifically to comply with the Baseline Assessment provision of the rule.
Therefore, PPTS is also capturing 1) the total mileage in company designated areas that "could affect" a high consequence area and 2) of these miles, how many have been inspected as part of a Baseline Assessment since January 1, 1996.
PPTS was introduced into the nebulizer for at least 30 min before calibration to minimize instrument drift.
4) Nonstandard abbreviations: GFR, glomerular filtration rate; XRF, x-ray fluorescence; ICP-AES, inductively coupled plasma-atomic emission spectroscopy; TCA, trichloroacetic acid; and PPTS, protein precipitation solution.