NSF ANSI-347A-2012 pdf download Sustainability assessment for single ply roofing membranes
1.2 Principles This standard practice was developed based on the following important principles.
1.2.1 Life cycle consideration The life cycle of a product considers activities associated with the sourcing or extracting of natural resources, production and delivery of raw materials and finished product, use and maintenance of the product, and the final disposal at the end of its service life. This Standard was developed with consideration of the life cycle stages of Single Ply Roofing Membrane to help identify the appropriate and relevant characteristics and criteria to be used in evaluating a product’s environmental preferability and sustainability.
1.2.2 Relationship with legislation A precondition for claiming conformance with this Standard shall be compliance with environmental and other relevant regulations promulgated by authorities having jurisdiction.
1.2.3 International trade aspects The procedures and requirements included within this Standard are not intended to create unnecessary barriers to international trade.
1.2.4 Scientific basis The measurable criteria contained in this Standard were developed and selected based on sound scientific and engineering principles intended to produce accurate, reproducible results.
1.2.5 Product innovation Use of this Standard is intended to support innovation that maintains or has the potential to improve environmental and social accountability performance.
2 References The following documents contain provisions that, through reference, constute provisions of this Standard. At the time this Standard was balloted, the editions listed below were valid. All documents are subject to revision, and parties are encouraged to investigate the possibility of applying the recent editions of the documents indicated below.