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  2. IEC 61000-4-2 - Wikipedia

    en.wikipedia.org/wiki/IEC_61000-4-2

    The publication describes requirements, levels and test methods to achieve immunity compliance of an electronic product. The purpose is to create a reproducible ground for product compliance and the standard defines: ranges, levels, test equipment, setups, procedures, calibrations, generator waveforms and general uncertainties.

  3. Electrostatic discharge materials - Wikipedia

    en.wikipedia.org/wiki/Electrostatic_discharge...

    Electrostatic discharge materials (ESD materials) ... Anti-Static, Conductive, and Dissipative. [1] Ohms Per Square < 10 −3: 10 −3 to 1 1 to 10 3:

  4. Electrostatic discharge - Wikipedia

    en.wikipedia.org/wiki/Electrostatic_discharge

    A charged device model (CDM) test is used to define the ESD a device can withstand when the device itself has an electrostatic charge and discharges due to metal contact. This discharge type is the most common type of ESD in electronic devices and causes most of the ESD damages in their manufacturing.

  5. Human-body model - Wikipedia

    en.wikipedia.org/wiki/Human-body_model

    Warning label for an electrostatic sensitive device, denoting the devices susceptibility to damage. A similar symbol without the bar and with a black "dome" denotes ESD-safe equipment. The human-body model (HBM) is the most commonly used model for characterizing the susceptibility of an electronic device to damage from electrostatic discharge ...

  6. Electrostatic-sensitive device - Wikipedia

    en.wikipedia.org/wiki/Electrostatic-sensitive_device

    Symbol for an ESD protection device – EPA Alternate warning symbol Symbol of an ESD grounding point for all components. An electrostatic-sensitive device (often abbreviated ESD) is any component (primarily electrical) which can be damaged by common static charges which build up on people, tools, and other non-conductors or semiconductors. [1]

  7. Cardiology diagnostic tests and procedures - Wikipedia

    en.wikipedia.org/wiki/Cardiology_diagnostic...

    With a maximal stress test the level of exercise is increased until the person's heart rate will not increase any higher, despite increased exercise. A fairly accurate estimate of the target heart rate, based on extensive clinical research, can be estimated by the formula 220 beats per minute minus patient's age.

  8. Simple blood test could predict a person’s heart disease risk ...

    www.aol.com/news/simple-blood-test-could-predict...

    About 13% — roughly 3,600 participants — had either a heart attack or stroke, had surgery to fix a narrowed or blocked artery, or died from heart disease over the 30-year follow-up period.

  9. Antistatic device - Wikipedia

    en.wikipedia.org/wiki/Antistatic_device

    An antistatic device is any device that reduces, dampens, or otherwise inhibits electrostatic discharge, or ESD, which is the buildup or discharge of static electricity. [ 1 ] [ 2 ] ESD can damage electrical components such as computer hard drives, and even ignite flammable liquids and gases.