Nfpa 68 2007 pdf

Implement the latest best practices for industrial fire protection and fire safety with the most advanced edition of NFPA Reflecting changes in technology, recent fire experience, and current fire safety practices, NFPA 68 Standard on Explosion Protection by Deflagration Venting applies to the design, location, installation, maintenance, and use of devices and systems that vent the combustion gases and pressures resulting from a deflagration within an enclosure so that structural and mechanical damage is minimized.

This flexible Standard includes a performance-based option, including self-contained chapters supporting the performance-based aspect. Major technical changes help you apply requirements and determine the right protocols. In this edition: New requirements are included to adjust the KSt values for certain metal dusts if the KSt value was obtained in a vessel smaller than 1 m3. An added equation helps you determine the hydraulic diameter for rectangular enclosures. A reorganized chapter on venting gas mixture and mist deflagrations clarifies the order and applicability of the various adjustments and corrections to required vent area.

A new annex shows you how to implement the equations and calculation procedures, including partial volume effects. New requirements for determining Pmax, that replace requirements for determining KG, with revised equations for determining the turbulent flame enhancement factor. A reorganized chapter on venting dust and hybrid mixture deflagrations provides rules in the order they're applied in the field. Subscription pricing is determined by: the specific standard s or collections of standards, the number of locations accessing the standards, and the number of employees that need access.

As the voice of the U. Available for Subscriptions. Add to Alert DRM. Please first log in with a verified email before subscribing to alerts. Please first verify your email before subscribing to alerts.

Already Subscribed to this document. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. PDF Price. Not a Member? This standard is not included in any packages. We have no amendments or corrections for this standard. Request Proposal Price. Proceed to Checkout Continue Shopping. Useful Links.