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  2. Lead shielding - Wikipedia

    en.wikipedia.org/wiki/Lead_shielding

    Personal shielding includes lead aprons (such as the familiar garment used during dental x-rays), thyroid shields, and lead gloves. There are also a variety of shielding devices available for laboratory equipment, including lead castles , structures composed of lead bricks , and lead pigs , made of solid lead or lead-lined containers for ...

  3. History of radiation protection - Wikipedia

    en.wikipedia.org/wiki/History_of_radiation...

    Protective aprons that do not comply with DIN 6857-1 of 2009 or the new IEC 61331-1 [47] of 2014 may result in higher exposures. There are two classes of lead equivalency classes: 0.25 mm and 0.35 mm. The manufacturer must specify the area weight in kg/m 2 at which the protective effect of a pure lead apron of 0.25 or 0.35 mm Pb is achieved ...

  4. Flashing (weatherproofing) - Wikipedia

    en.wikipedia.org/wiki/Flashing_(weatherproofing)

    In earlier days, birch bark was occasionally used as a flashing material. [7] Most flashing materials today are metal, plastic, rubber, or impregnated paper. [8]Metal flashing materials include lead, aluminium, copper, [1] stainless steel, zinc alloy, other architectural metals or a metal with a coating such as galvanized steel, lead-coated copper, anodized aluminium, terne-coated copper ...

  5. Clamp holder - Wikipedia

    en.wikipedia.org/wiki/Clamp_holder

    A clamp holder or clamp fastener is a piece of laboratory apparatus that is used to secure laboratory clamps, such as extension-type utility clamps, or other attachments to a retort stand or lab frame. [1] The material can be made up of brass, cast iron, stainless steel, aluminium or nickel-plated zinc. [2]

  6. Demron - Wikipedia

    en.wikipedia.org/wiki/Demron

    Demron is a radiation-shielding fabric.For the same weight it has slightly lower radiation protection than lead shielding, but is flexible. [1] The composition of Demron is proprietary information, but it has been described as a non-toxic polyethylene and non-PVC-based polymer fused between two layers of a woven fabric.

  7. Report: Ex-Cal QB Fernando Mendoza signs with Indiana - AOL

    www.aol.com/report-ex-cal-qb-fernando-155613503.html

    Former Cal quarterback Fernando Mendoza is transferring to Indiana, ESPN reported Tuesday. The 6-foot-5, 225-pound sophomore passed for 3,004 yards with 16 touchdowns and six interceptions in 11 ...

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