108 Materials and Their Handling 



through mistakes made by order clerks, to errors 

 in scheduling, to cancellation of customers' orders, 

 or it may be material which has been lost or mis- 

 laid. Such material may pile up in the storeroom 

 until it becomes obsolete or deteriorates from age 

 and ultimately becomes unusable. Of course, un- 

 der perfect management none of these cases can 

 arise; but, owing to the frailty of human nature, 

 they do arise and are sources of waste. Stored 

 material can be spoiled, also, by letting it lie in 

 storage under exposed and improper conditions, so 

 that it rusts, molds, decays, or otherwise deteri- 

 orates; or it may spoil by aging alone. Rubber 

 tires, for instance, will deteriorate from aging 

 even if kept under the best conditions. The way 

 to decrease losses through the spoiling of material 

 in storage is to use it for some other purpose than 

 that for which it was purchased. If this is im- 

 possible, it should be salvaged. 



Spoiling of Material in Process. Work spoiled 

 in process covers breakage, rough handling, etc., 

 and all material thrown out by the inspection de- 

 partment on account of bad workmanship and 

 other defects. Usually, such material cannot be 

 salvaged unless it is possible to utilize it on smaller 

 sizes or other orders. 



Spoiling of Material by Changes in Design. 

 Changes in design may obsolete the material which 

 has been ordered for the old design. If the 

 change is made because of weakness in the old 

 design or because the old material has proved 

 unsuitable, the material obsoleted usually cannot 



