A barrier pipe is a type of plastic piping equipped with a built-in protective layer or coating.Without this extra layer of protection, oxygen and other gases could pass through the walls of the pipe, leading to corrosion within the plumbing system over time. barrier pipe is a type of plastic piping equipped with a built-in protective layer or coating.
order for it to be considered lead-based paint, the paint must have greater than or equal to 0.5% lead. 2 For example, see the sections of the federal standard for lead in the construction industry identified as 29. CFR 1926.62(d)(2)(i) and 29 CFR 1926.62(d)(2)(iii)(B).
Many homes and condominiums built before 1978 have lead-based paint. Paint that has chipped or is deteriorating, or on surfaces that rub together such as windows and doors, creates lead dust which can pose serious health hazards to occupants and visitors.