Hoarding rate

Hoarding rate = quantity at home (in use and not in use) / quantity of total acquisitions... 

The hoarding rate has been defined as the ratio between the number of units still at home (in use or not in use) and the total number of acquisitions expressed in percent. 

When the total number of equipment declared is considered, more than 95% of the units are in a hoarding position on the average. The average hoarding rate for replacement batteries is 62%. It demonstrates that individual batteries and packs are discarded with a higher rate than batteries of first purchase directly associated with the equipment. 

A comparative evaluation of hoarding rates for equipment and replacement batteries is presented in Figure 11. 

Figure 11. Hoarding Rates for Equipment and Replacement Batteries...

The current definition of collection rate is based on the sold and distributed weight of batteries and their service life. However, the service life of the batteries related to appliances should be regarded as very long when hoarded batteries are taken into consideration. In order to make collectable quantity clarified and also to make the collection effort properly evaluated, the hoarding rate of the batteries should be taken into account. 

Survey on hoarding rates of appliances with portable rechargeable batteries Purpose of the survey... 

According to the survey results, the average years of use for an individual appliance was calculated. The hoarding rate was also calculated from the difference between the total number of batteries and the number of batteries available for collection. Table 3.8 shows average years in use and hoarding rates. 

Average years in use vary depending on the appliances. However, a high hoarding rate for individuals indicates that consumers do not discard or dispose of their own appliances with batteries. 

B Weight of batteries sold and distributed X Hoarding rate... 

K.M. Hoard, Measurement of Flow Rates Using Surface Coil Nuclear Magnetic Resonance Vol. MSc. University of Arlington, Arlington, 1989. 

It is obvious that the evaluation of the collection and recycling efficiency of Ni-Cd batteries, and of portable Ni-Cd batteries in particular, is a difficult task to achieve. This is the reason why an agreement should not be signed if there is not a well documented and mutual understanding of the definition of data to acquire, parameters to evaluate and criteria like collection rates, quantities available for collection, quantity found in municipal waste, recycling rates, hoarding, etc. 

Collection rate is one of the most important key factors for evaluating the environmental situation. With the introduction of the hoarding concept, the collection rates of spent NiCd batteries in Japan was in general found to be higher than 50%. 

Fire Hazards - Flash Point (deg. F) 150 CC Flammable Limits in Air (%) 6.0 - 13.5 Fire Extinguishing Agents Water, foam, dry chemical, or carbon dioxide Fire Extinguishing Agents Not To Be Used Not pertinent Special Hoards of Combustion Products Not pertinent Behavior in Fire Not pertinent Ignition Temperature (deg. F) 640 Electrical Hazard Not pertinent Bunting Rate 4 mm/min. 

Hoard, J. Wallington, T. Brciz. R. L. Malkin, A. Dorai, R. and Kushner, M. J. Importance of 0( P) atoms and OH radicals in hydrocarbon oxidation during the nonthcrmal plasma treatment of diesel exhaust inferred using relative-rate methods Int. J Chem. Kinet.. 2003,55. 231-238... 

The pollinator that drag out the sp>ent time in flowers to nectar hoarding, spjeciaUy if it is available, increase the probability of pwllen deposition and, consequently, the pollination can be well successed. Nevertheless, cultivated commercially crops that do not stimulate the nectar production after several visits of pollinators can have an advantage in pollination process, so the number of honeybee visits to flowers is positively correlated to the nectar secretion in all flower duration (Vidal et al., 2006). The evaluation of nectar secretion rate is an important component in ecological studies related to the pollination process, mainly in that about flower-insect interaction. 

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