ARLINGTON, Va. - The Air-Conditioning and Refrigeration Institute and the American Society of Heating, Refrigerating and Air-Conditioning Engineers will work together on new standards, the groups announced.

The agreement says that ASHRAE will give instruction on how to perform product testing, while ARI will handle specifying rating conditions and details on how to rate product performance.

According to ARI, the agreement makes clear that where there is a published ARI rating standard, it is the appropriate place for inclusion of the product performance rating conditions. Likewise, where there is a published ASHRAE testing method, the ASHRAE standard is the appropriate place for related details.

"This agreement clarifies, for ASHRAE and ARI members, that respective roles of each organization is standards development," said Mark Menzer, ARI's vice president of engineering and research. "Each organization will recognize the other's area of competence, communicate to establish whether the other wishes to participate and cooperate so as to avoid conflict or overlap between standards."

Currently, nearly 50 ARI rating standards reference and require the use of corresponding ASHRAE testing method standards with a number of others currently under development at ASHRAE and ARI.