Custom Search
|
|
|
||
 of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE), Federal Housing
Administration, and the various building code organizations.
c. Impact of government procurement. Government agencies purchase structural
fiberboard and laminated paperboard products for residential, institutional, and commercial
applications. In 1990, $5.3 million worth of these products were purchased with
appropriated Federal funds. Many Federal agencies disburse funds to state and local
agencies for use in building construction, renovation and repair -- activities for which use of
structural fiberboard and laminated paperboard are appropriate. Therefore, EPA expects
both direct and indirect procurement of these items to increase as a result of this designation.
4. Designation
In 40 CFR 247.12(b), EPA is designating structural fiberboard and laminated
paperboard products. Examples of these products include building board, insulating
formboard, sheathing, shingle backer, sound-deadening board, roof insulating board,
acoustical and non-acoustical ceiling tile, insulating wallboard, acoustical and non-acoustical
lay-in panels, floor underlayments, and roof overlay (coverboard), The designation includes
both insulating and structural uses of structural fiberboard and laminated paperboard
products.
C. Plastic Pipe and Fittings
1. Background
Plastic pipe applications predominantly fall into two categories: pressure and non-
pressure uses. Pressure-rated applications include the oil, gas and mining industries, and
pipe used for the transport of potable water. Pressure-rated pipe must be able to handle
significant internal pressure, necessitating greater structural strength than non-pressure
applications.
In the proposed CPG, EPA did not include pressure-rated pipe and pipe rated for-
carrying potable water. Several industry experts expressed concern about potential
contamination of potable water from pipe made from non-virgin plastic materials. Also,
because the quality and performance of recovered resins in plastic pipe are only now being
evaluated, manufacturers generally have been unwilling to risk the use of recovered resins in
pressure-rated pipe. Industry experts and users of pressure-rated pipe were concerned about
pipe failure, which could result in physical and chemical hazards and expensive repairs.
In the proposed CPG, EPA proposed to designate plastic pipe and fittings made from
thermoplastic resins, including PVC and HDPE, for the following applications: sewer,
drainage, conduit, and drain, waste and vent (DWV). This proposed designation was based
on the rationale that, compared to pressure applications, these non-pressure applications
generally have lower internal stresses and would not impede the use of recovered materials in
52
|
 
|
|
|
||
