Properly design and use barricades

Article Abstract:

Barricades used in chemical process industries should be designed to resist the impact of explosion blast waves and quasistatic pressures due to the accumulation of gases. They must also be resistant against wind loads and seismic loads, which may be specified by local codes. The estimation of the loading that barricades will sustain from the design basis explosions is the first step in designing such structures. Potential explosion events can be identified from past operating history or through a thorough process hazards analysis.

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Are your instrumented safety systems up to standard?

Article Abstract:

ANSI/ISA S84.01-1996 is the first standard in the US to establish specific requirements for the design, availability, installation, operation, maintenance, decommissioning and documentation of safety instrumented systems used in chemical process industries. The standard addresses logic- solver technologies, including electromechanical relays, solid-state logic, programmable electronic systems, motor-driven timers and hard-wired logic.

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Controlling coploymer composition and molecular weight distribution

Article Abstract:

Polymer molecular weight distribution and chemical composition affect both the film formation process and the film's mechanical properties.

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