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.
Best Answer: The three layers are the dura mater, arachnoid membrane, and the pia mater. All three simply function to cover and protect the brain.The dura mater (Latin for hard mother) is the outer layer.est Answer: The three layers are the dura mater, arachnoid membrane, and the pia mater. All three simply function to cover and protect the brain.