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  2. Fire-resistance rating - Wikipedia

    en.wikipedia.org/wiki/Fire-resistance_rating

    This rating is the requirement in data safes and vault structures for protecting digital information on magnetic media or hard drives. Temperatures inside the protected chamber must be held below 125 °F (52 °C) for the time period specified, such as Class 125-2 Hour, with temperatures up to 2,000 °F (1,090 °C) outside the vault.

  3. NFPA 704 - Wikipedia

    en.wikipedia.org/wiki/NFPA_704

    NFPA 704 safety squares on containers of ethyl alcohol and acetone. "NFPA 704: Standard System for the Identification of the Hazards of Materials for Emergency Response" is a standard maintained by the U.S.-based National Fire Protection Association.

  4. 1951 USAF resolution test chart - Wikipedia

    en.wikipedia.org/.../1951_USAF_resolution_test_chart

    A 1951 USAF resolution test chart is a microscopic optical resolution test device originally defined by the U.S. Air Force MIL-STD-150A standard of 1951. The design provides numerous small target shapes exhibiting a stepped assortment of precise spatial frequency specimens.

  5. File:Advanced Imaging Technology (AIT) Fact Sheet.pdf

    en.wikipedia.org/wiki/File:Advanced_Imaging...

    Short title: Microsoft Word - AIT Fact Sheet_6 15 10_v2.doc; Author: haley.wright: Date and time of digitizing: 07:45, 16 June 2010: Software used: PScript5.dll Version 5.2.2

  6. National Fire Danger Rating System - Wikipedia

    en.wikipedia.org/wiki/National_Fire_Danger...

    More research followed and in 1965 a research project headquartered in Seattle was established to provide a fresh look at the needs and requirements for a national, fire danger, rating system. After canvassing many fire control agencies across the country, the Seattle research group recommended new directions for research that would lead to the ...

  7. List of fire-retardant materials - Wikipedia

    en.wikipedia.org/wiki/List_of_fire-retardant...

    In the United Kingdom, after two significant construction fires which resulted in a combined loss of £1,500 million, The Joint Code of Practice was introduced by the Fire Protection Association (FPA), the UK's national fire safety organisation, [1] to prevent fires on buildings undergoing construction work.

  8. Fire safety - Wikipedia

    en.wikipedia.org/wiki/Fire_safety

    Fire safety equipment at a construction site in China Property loss caused by arson. Fire safety is the set of practices intended to reduce destruction caused by fire.Fire safety measures include those that are intended to prevent the ignition of an uncontrolled fire and those that are used to limit the spread and impact of a fire.

  9. Flammability diagram - Wikipedia

    en.wikipedia.org/wiki/Flammability_diagram

    Flammability diagram for methane. Flammability diagrams show the control of flammability in mixtures of fuel, oxygen and an inert gas, typically nitrogen.Mixtures of the three gasses are usually depicted in a triangular diagram, known as a ternary plot.