Clearance hole chart for inch bolts and screws according to ASME B18.2.8
One of the earliest forms of comparison. The pigment/binder ratio is the weight ratio of the sum of the pigments...
No featured images
In 1967, the NFPA Technical Committee on Electrical Equipment in Chemical Atmospheres established recommended practices, entitled "NFPA 496 - Purged and Pressurized Enclosures for Electrical Equipment." Since then, the NFPA has expanded its document by adding recommendations for enclosure ventilation and dilution.
Today’s modern chemical facilities often contain both flammable gases and ignitable dust, which pose explosion risks. To prevent explosions from happening in harsh environments whereby flammable gases or combustible dusts are present directives and guidelines are put in place to protect both the public, workforce, and environment.
The need to place general-purpose equipment in hazardous (classified) locations is not new, yet in the last three decades, the need has grown dramatically.
Latest comments