A business using the cycle inventory method might count different items at different rates, based on the level of turnover or demand for that particular item. method of keeping track of inventory by performing inventory counts constantly, or on a frequent and regular basis, instead of once per year or once per quarter.
Effect of Heat. The melting point of polypropylene is about 165Â°C and while it does not have a true softening point temperature, the maximum processing temperature of the fibre is approximately 140Â°C. Prolonged exposure to elevated temperatures will cause degradation of the fibre, but anti-oxidants are incorporated in polypropylene fibres to protect them during processing and at normal service temperatures.
Polyethylene (abbreviated PE) or polyethene (IUPAC name polyethene or poly(methylene)) is the most common plastic. The annual global production is approximately 80 million tonnes.or common commercial grades of medium-and high-density polyethylene the melting point is typically in the range 120 to 180 Â°C (248 to 356 Â°F). The melting point for average, commercial, low-density polyethylene is typically 105 to 115 Â°C (221 to 239 Â°F).