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Chemical Sampling Information (CSI)
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General Description

Synonyms: Gallium Metal, Liquid (DOT); Galium Metal, Solid (DOT); UN 2803 (DOT)

OSHA IMIS Code Number: G104

Chemical Abstracts Service (CAS) Registry Number: 7440-55-3

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: LW8600000

Chemical Description and Physical Properties:

grayish metal
molecular weight: 69.72
molecular formula: Ga
boiling point: approx. 2400°C
melting point: 29.78°C

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • sampling media: Tared Low Ash Polyvinyl Chloride (LAPVC) filter 5 microns
    maximum volume: 960 Liters
    maximum flow rate: 2.0 L/min
    current analytical method: Gravimetric
    method reference: 11, 12
    sampling and analytical error: 0.10
    method classification: Fully Validated
    note: Field method, do not submit sample to the Salt Lake Technical Center. Standard is + for inert dust; noncompliance can be based on gross weight without analysis. If the filter is not overloaded, samples may be collected up to an 8-hour period.

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