The linear expansion coefficient of rigid PVC is small and has good flame retardancy, the limiting oxygen index LOI being up to 45 or more. Parts of this article those related to this section need to be updated. Microbial degradation of polyvinyl chloride plastics PDF Ph. Problem - 100,000 polymer is then passed through a centrifuge to remove water. Other uses include fasciaand siding or weatherboarding.
High altitude physiological and life support training associated with the U-2 space suit are vital to protecting the pilot. Every time a Dragon Lady takes off, the life-sustaining physiological equipment enables the pilot to successfully accomplish the mission and come home safely. As a physical environment, space begins around 125 miles above the earth; but as a physiological environment, it begins at 50,000 feet - the space equivalent zone.
Flying in this zone requires the protection of a full pressure suit to protect from the high altitude hazards of hypoxia, decompression sickness, Armstrong s Line, and extreme cold.
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