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NFPA 497 has its Table 4.4.2 updated with new chemical-physical property data

NFPA 497, Table 4.4.2. has become my “go-to” source for chemical-physical property data for my flammables (along with the SDS).  Although they use Celsius rather than Fahrenheit, and this drives me crazy just because I am “old school”, this table is instrumental for understanding the “Group” your flammable gas/vapors belong to!  In the 2021 edition

Ventilation requirements for flammable liquid storage areas where dispensing is conducted (NFPA 30, 2021)

Liquid storage areas where dispensing is conducted must have either a gravity ventilation system or a continuous mechanical exhaust ventilation system. If the dispensing involves Class I liquids (e.g. Category 1 & 2 liquids per OSHA terminology) mechanical ventilation is the ONLY acceptable option.  Regardless of the type used there are some FUNDAMENTAL requirements that

NFPA 30 (2021) adopts a scheme based exclusively on the liquid physical state and property (i.e., the liquid flash point)

For the 2021 edition of NFPA 30, the committee introduced a sweeping change in the classification scheme for liquids. The term ignitible liquid has been introduced to initiate a process whereby the terms flammable liquid and combustible liquid are no longer used. This causes the requirements in NFPA 30 and other codes and standards to

2021 International Fire Code (IFC) is now available

The 2021 International Fire Code (IFC) contains regulations to safeguard life and property from fires and explosion hazards. Topics include general precautions, emergency planning, and preparedness, fire department access and water supplies, automatic sprinkler systems, fire alarm systems, special hazards, and the storage and use of hazardous materials. Key changes to the 2021 IFC include:

The Chlorine Institute recognizes three (3) piping pressure testing techniques

All new or modified chlorine piping systems must undergo pressure testing to verify the integrity of the piping (see section 11.4 for leak testing). ASME B31.3 (13.2.8 ), Process Piping testing requirements, should be applied as a minimum standard. There are three (3) types of acceptable testing methods: hydrostatic testing, pneumatic testing, and the alternate

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