Assessing the Flammability Hazards of Modern Refrigerant Blends
When: Thu, August 16, 2018 at 2:00pm EDT
Regulatory actions, focused on promoting environmental sustainability, are driving the Air Conditioning and Refrigeration (ACR) industry toward the use of lower Global Warming Potential (GWP) refrigerants -- many of which are flammable. This session will provide an overview of flammability parameters and refrigerant safety classes, and include a summary of ongoing codes and standards activities related to flammable refrigerants.
To be marketed in the US, new refrigerant blends need to have both a Refrigerant Designation Number (R Number) and be assigned a Safety Classification through a rigorous testing process that conforms to the requirements of ANSI/ASHRAE Standard 34 -2016, Designation and Safety Classification of Refrigerants.
Webinar participants will learn the required steps in flammability determination for new refrigerant blends required to support a submission to ANSI/ASHRAE Standard 34 for assignment of Safety Classification rating and a R Number.
NFPA 652 (2019) - An Early Look: Changes to the Standard on the Fundamentals of Combustible Dust
When: Tues, August 28, 2018 at 2:00pm EDT
Combustible dusts continue to be recognized as a cause of many catastrophic fires and explosions, globally. In 2015 the National Fire Prevention Association (NFPA), issued a new standard, NFPA 652 (Standard on the Fundamentals of Combustible Dust), with the objective of providing consistent requirements for the management of combustible dust fire and explosion hazards. The new standard also provided integration to appropriate NFPA industry or commodity-specific combustible dust standards, ensuring that fundamental requirements are addressed consistently across industries, processes, and dust types. NFPA 652 provides a standardized framework for collecting appropriate combustible dust properties and for conducting a Dust Hazard Analysis (DHA). Under the original standard, all required DHAs were required to be completed by September 7, 2018.
NFPA 652 has undergone a number of changes during the recent revision cycle, and the 2019 edition of the standard will have a number of notable changes. These include an extended deadline for completion of DHAs (September 7, 2020), the introduction of a DHA revalidation requirement, and a reorganization of the document’s sections related to Management Systems and Hazard Management: Mitigation & Prevention.
Join us for an early look and overview of the updated NFPA 652 (2019 Edition).