Guide Specifications Furnished by Others
Particular care should be exercised when utilizing specifications prepared by other people. Unless they explicitly say so, it is difficult to tell at first glance whether the product specification is competitive or sole-source. Experienced specifiers usually assume that guide specifications furnished by building product manufacturers will be sole-source specifications no matter what specifying technique is used -- the fact that no names are named does not preclude the possibility that the only product that can comply with the description is the manufacturer's own product. In addition, a sole source specification can be "opened up" by the simple expedient of stating that substitutions will be considered.