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    Typical Test Equipment We Use

    Sources for Standards and Test Methods

    American National Standards Institute (ANSI)
    1819 L Street, NW, 6th floor
    Washington, DC 20036
    Tel:�02-293-8020
    Fax: 202-293-9287
    www.ansi.org

    American Society for Testing and Materials (ASTM)
    100 Barr Harbor Drive
    West Conshohocken, PA 19428-2959
    Tel: 610-832-9585
    www.astm.org

    Electrostatic Discharge Association (ESDA)
    7900 Turin Road, Bldg. 3, Suite 2
    Rome, NY 13440-2069
    Tel: 315-339-6937
    www.esda.org

    National Fire Protection Association (NFPA)
    1 Batterymarch Park
    Quincy, MA 02169-7471
    Tel: 617 770-3000
    www.nfpa.org

     

    MicroStat Laboratories/River's Edge Technical Service, Inc.
    3612 3rd Pl. NW
    Rochester, MN 55901
    Phone: 877-204-2007 (Toll-Free), 507-292-0230
    Fax: 507-292-0698
    Email: Info@microstatlabs.com

    ESD Properties and Characteristics We Test For

    At MicroStat Laboratories/River’s Edge Technical Service, we conduct ESD testing for most of the relevant product and material properties and characteristics. Listed below are the generic ESD properties and characteristics that we test for and the ESD test methods and standards covering these properties and characteristics.

    Static Decay/Static Dissipation
    A measurement of the time required for an electrostatic charge to dissipate to a specified level. The time required for an electrostatic potential to be reduced to a given percentage (usually 10%) of its initial value.

    FTMS 191-5931: Electrostatic Decay of Fabrics
    FTMS 101C Method 4046: Electrostatic Decay

    Electrostatic Discharge Shield
    A barrier or enclosure that limits the passage of current and attenuates an electromagnetic field resulting from an electrostatic discharge.

    ANSI/ESD STM11.31: Bags (Electrostatic Shielding)
    ANSI/ESD S541: Packaging Materials for ESD Sensitive Items

    Electrostatic Charge Generation
    The level of electrostatic charge generated on an object in response to an activity such as triboelectric charge generation.

    ANSI/ESD STM97.2: Floor Materials and Footwear Voltage Measurement in Combination with a Person
    ESD ADV11.2: Triboelectric Charge Accumulation Testing

    Point-to-Point Resistance
    Measure of the electrical resistance between two points on the surface of a material.

    ANSI/ESD STM2.1: Resistance Test Method for Electrostatic Discharge Protective Garments
    ANSI/ESD S4.1: Worksurfaces—Resistance Measurements
    ANSI/ESD STM7.1: Floor Materials—Resistive Characterization of Materials
    ANSI/ESD STM11.13: Two-Point Resistance Measurement
    ANSI/ESD SP15.1: In-Use Resistance Testing of Gloves and Finger Cots
    NFPA 99: Health Care Facilities

    Resistance to Ground
    The resistance in ohms measured between a single electrode placed on a surface and ground.

    ANSI/ESD S1.1: Evaluation, Acceptance, and Functional Testing of Wrist Straps
    ANSI/ESD S4.1: Worksurfaces—Resistance Measurements
    ANSI/ESD STM7.1: Floor Materials—Resistive Characterization of Materials
    ANSI/ESD STM9.1: Resistive Characterization of Footwear
    ANSI/ESD STM12.1: Seating-Resistive Measurement
    ANSI/ESD STM13.1: Electrical Soldering/Desoldering Hand Tools
    ANSI/ESD STM97.1: Floor Materials and Footwear—Resistance in Combination with a Person
    ASTM F-150: Flooring Resistance
    ESD SP9.2: Resistive Characterization of Foot Grounders
    NFPA 99: Health Care Facilities

    Resistance to Groundable Point
    The resistance in ohms measured between a single electrode placed on a surface and a groundable point.

    ANSI/ESD S4.1: Worksurfaces—Resistance Measurements
    ANSI/ESD STM7.1: Floor Materials—Resistive Characterization of Materials
    ANSI/ESD STM97.1: Floor Materials and Footwear—Resistance in Combination with a Person

    Surface Resistance
    The ratio of DC voltage to the current flowing between two electrodes of specified configuration that contact the same side of a material. This measurement is expressed in ohms.

    ASTM F-150: (Flooring Resistance)
    ANSI/ESD STM2.1: Resistance Test Method for Electrostatic Discharge Protective Garments
    ANSI/ESD S4.1: Worksurfaces—Resistance Measurements
    ANSI/ESD STM7.1: Floor Materials—Resistive Characterization of Materials
    ANSI/ESD STM11.11: Surface Resistance Measurement of Static Dissipative Planar Materials
    ANSI/ESD STM11.13: Two-Point Resistance Measurement
    ANSI/ESD SP15.1: In-Use Resistance Testing of Gloves and Finger Cots
    ANSI/ESD S541: Packaging Materials for ESD Sensitive Items

    Surface Resistivity
    For electric current flowing across a surface, the ratio of DC voltage drop per unit length to the surface current per unit width. In effect, the surface resistivity is the resistance between two opposite sides of a square and is independent of the size of the square or its dimensional units. Surface resistivity is expressed in ohms/square.

    AATCC 76: Electrical Surface Resistivity of Fabrics
    AATCC 84: Electric Resistivity of Yarns
    ASTM D-257: Volume and Surface Resistivity of Electrically Insulating Materials

    Volume Resistance of Static Dissipative Materials
    The ratio of the DC voltage to current passing between tow electrodes, or a specified—configuration, that contact opposite sides of the material or object under test. Volume resistance of static dissipative material is reported in ohms.

    ANSI/ESD STM11.12: Volume Resistance Measurement of Static Dissipative Planar Materials
    ANSI/ESD S541 (Packaging Materials for ESD Sensitive Items)

    Volume Resistivity
    The ratio of the DC voltage per unit thickness to the amount of current per unit area passing through a material. Volume resistivity is given in ohm-centimeters

    ASTM D-257: (Volume and Surface Resistivity of Electrically Insulating Materials)
    ASTM 991: (Surface Resistivity)

     

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