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beryllium    音标拼音: [bɚ'ɪliəm]
n. 金皮

金皮

beryllium
n 1: a light strong brittle grey toxic bivalent metallic element
[synonym: {beryllium}, {Be}, {glucinium}, {atomic number 4}]

Glucinum \Glu*ci"num\, n. [Cf. F. glucinium, glycium, fr. Gr. ?,
sweet. Cf. {Glycerin}.] (Chem.)
A rare metallic element, of a silver white color, and low
specific gravity (2.1), resembling magnesium. It never occurs
naturally in the free state, but is always combined, usually
with silica or alumina, or both; as in the minerals
phenacite, chrysoberyl, beryl or emerald, euclase, and
danalite. It was named from its oxide glucina, which was
known long before the element was isolated. Symbol Gl. Atomic
weight 9.1. Called also {beryllium}. [Formerly written also
{glucinium}.]
[1913 Webster]


Beryllium \Be*ryl"li*um\, n. [NL.] (Chem.)
A metallic element found in the beryl. See {Glucinum}.
[1913 Webster]


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  • CDC - NIOSH Pocket Guide to Chemical Hazards - Beryllium beryllium . . .
    Beryllium metal Metal: A hard, brittle, gray-white solid CDC - NIOSH Pocket Guide to Chemical Hazards - Beryllium beryllium compounds (as Be) Skip directly to site content Skip directly to page options Skip directly to A-Z link
  • Preventing Sensitization and Disease from Beryllium Exposure
    beryllium dusts, fumes, mists, and beryllium-containing solutions and suspensions Install, use, and maintain effective engineer-ing controls for processes that create beryllium dusts, fumes, mists, and beryllium-containing solutions and suspensions Keep airborne concentrations of beryllium as low as possible, since a safe exposure limit for
  • Docket 077: Manual of Analytical Methods, Beryllium - CDC
    use of beryllium oxide spikes in quality control testing have been included as suggested However, inclusion of a general beryllium salts or beryllium silicate recovery discussion were not included since the focus of the research is the recovery of the most commonly encountered workplace beryllium compounds (beryllium metal and beryllium oxide)
  • Surface Sampling Methods for Beryllium - Centers for Disease Control . . .
    Beryllium surface compliance levels (DOE: 10 CFR 850) Equipment release: 0 2 μg Be 100 cm 2 Housekeeping: 3 0 μg Be 100 cm 2 (But no information on sampling methodology) “ Analysis by AIHA-accredited lab or equivalent ”
  • Beryllium compounds - IDLH | NIOSH - CDC
    However, the revised IDLH for beryllium compounds is 4 mg Be m3 based on being 2,000 times the OSHA PEL of 0 002 mg Be m3 (2,000 is an assigned protection factor for respirators; only the “most reliable” respirators are recommended for exposures greater than 2,000 times the OSHA PEL)
  • BERYLLIUM in Surface Wipes by Field-Portable Fluorometry
    beryllium concentration can be prepared by 10-fold dilution of the stock standards mentioned in the note above As with the samples, these stock standards are prepared for analysis by add-ing 0 4 mL of beryllium stock standard into 1 6 mL of detection solution (5-fold dilution) Please see Table 2
  • Engineering Controls Database - Control Technology and Exposure . . .
    Occupational exposure to beryllium occurs at places where the chemical is mined, processed, or converted into metal, alloys, and other chemicals Health risks exist if beryllium-containing materials are dispersed as a dust, fume, mist, or beryllium-containing solution or suspension that can be inhaled or come into contact with unprotected skin
  • Americium-241 | Radiation Emergencies | CDC
    Americium-241 (Am-241) is a manmade metal found in the environment in the form of microscopic dust As a dust or fine powder, Am-241 can cause certain cancers
  • BERYLLIUM in Air by Fluorometry 7704 - Centers for Disease Control and . . .
    fluorescence intensity vs beryllium concentration (ng mL) in the stock standard NOTE: To test a range of 0 05 μg to 6 μg of beryllium on the sampling media, beryllium stock standard solutions are made up using beryllium spectrometric standards diluted with theammonium bifluoride dissolution solution
  • BERYLLIUM in Air 7704 by Field-Portable Fluorometry
    beryllium concentration can be prepared by 10-fold dilution of the stock standards mentioned in the note above As with the samples, these stock standards are prepared for analysis by add-ing 0 4 mL of beryllium stock standard into 1 6 mL of detection solution (5-fold dilution) Please see Table 2





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