STANDARD REFERENCE MATERIAL

Brand	Owner	Address	Description
NIST DNA STANDARD REFERENCE MATERIAL	National Institute of Standards and Technology U.S. Department of Commerce	100 BUREAU DR. Gaithersburg MD 20899	as to STANDARD REFERENCE MATERIAL;control agents, namely, certified samples of nucleic acids;DNA;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

An ultrasonic inspection reference standard for composite materials includes a prism that is manufactured from a polymer resin. The ultrasonic inspection reference standard may be a rectangular prism and may be a polymer resin step-wedge reference standard that has similar acoustic properties as prior art fiber-reinforced composite step-wedge reference standards at significantly lower manufacturing cost. A photo-polymer resin reference standard may be created using a stereo lithography process. The polymer resin reference standard may replace a currently used expensive fiber-reinforced composite reference standard. The ultrasonic inspection reference standard manufactured from a polymer resin may be used, for example, for ultrasonic inspection of fiber-reinforced composite parts. The polymer resin reference standard may be used, for example, in the aircraft airframe industry, both commercial and defense.