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Cotton Module Cover Material Performance
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org
ASAE ASABE S615.1
1.1 This performance standard applies to materials used to manufacture covers intended to protect cotton modules after harvest from rain and wind exposure during outdoor storage by minimizing the fiber quality damage and fiber loss that can occur under poor storage conditions. Module covers are typically used over multiple harvest seasons where they experience exposure to wind and ultraviolet (UV) radiation (sunlight). Of these two degradation sources, mechanical motion from wind and other sources has been found to be the dominant factor. This standard specifies a minimum ability to maintain water penetration resistance following mechanical flexing.
1.2 Module cover materials may be constructed of natural or man-made fibers, tapes, film (woven or extruded) or combination of fibers that may be coated and have ultraviolet inhibitors added. Although covers will include sections of materials that are connected by seams, reinforcements, and/or have fused intersections and have grommets inserted to tie down or secure the cover onto a cotton module with ropes or cords, this performance standard only applies to the material used to form the top surface of the module cover.
1.3 The physical test requirements for materials used in module covers are those that can predict functional protection and reasonable durability for extended periods of use. The tests are intended to evaluate the degradation of resistance to water penetration after repeated mechanical flexing (similar to wind motion).
1.4 This standard was developed and applies to material covers for rectangular-shaped cotton modules.
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