For general appraisers, this designation is awarded to those whose education and experience exceed state appraisal certification requirements and is supported by the National Association of REALTORSÂ®. Presented by National Association of REALTORSÂ®. Contact GAA program staff at 800-874-6500 ext.
Absorbent and. cushioning material. Triple packaging provides three layers of containment to protect. the substances being shipped. These layers are primary, secondary, and outer containers. The following diagram shows the basic concept of triple packages. Packaging of. Infectious Substances. Page 4 of 24.
It is sometimes convenient to categorize packages by layer or function: primary, secondary, etc. 1  Primary packaging is the material that first envelops the product and holds it. This usually is the smallest unit of distribution or use and is the package which is in direct contact with the contents.