This standard allows the user to determine average and observed maximum undercutting values, as well as the frequency of the maximum undercutting on coated steel test panels scribed in accordance with Section 6 of ASTM D1654 using parallel, 100 mm (~4 in) scribes. The standard includes requirements for data collection, analysis, and reporting.
This standard is applicable for evaluation of most types of protective coatings for use on steel. This standard is not applicable to evaluation of thermal sprayed metals and ceramic coatings, hot-dip and electro-coated metal coatings, and tapes.
This Guide describes a six-step process to assist in determining the type of containment system and the level of environmental monitoring that should be specified on a project-specific basis when removing coatings that contain lead. The selection of the containment and monitoring strategies is based on an assessment of the type of paint removal method that will be used and the potential impact of the operations on the public, other workers in the area, and the environment. Note that local and state codes and regulations must be reviewed and take precedence to any guidance provided in this document.
The guidance provided in this document also applies to coatings containing other hazardous metals such as cadmium and chromium; however, the recommended analytical monitoring is often based on an analysis for lead. Paint chip sampling and testing for lead and other hazardous metals should be undertaken to properly characterize the paint being removed.
This Guide does not cover the selection of paint removal methods, or design of containment/ventilation systems.
This standard describes a procedure for determining shop or field conformance to a specified coating dry film thickness (DFT) range on ferrous and non-ferrous metal substrates using two types of nondestructive coating thickness gages (Type 1, magnetic pull-off, and Type 2, electronic) described in ASTM D7091