Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Standard test method for the determination of hexavalent chromium in workplace air by ion chromatography and spectrophotometric measurement using 1,5-diphenylcarbazide.

Authors
NIOSH
Source
Annual Book of ASTM Standards, ASTM, D 6832-02. West Conshohocken, PA: ASTM International, 2002 Dec; :1-9
NIOSHTIC No.
20022316
Abstract
This test method specifies a method for the determination of the time-weighted average mass concentration of hexavalent chromium in workplace air. The method is applicable to the personal sampling of the inhalable fraction of airborne particles, as defined in ISO 7708, and to area (static) sampling. The sample dissolution procedure specifies separate procedures for soluble and insoluble hexavalent chromium. The method is applicable to the determination of masses of 0.01 g to 10 g of hexavalent chromium per sample without dilution. The concentration range for hexavalent chromium in air for which this procedure is applicable is approximately 0.1 microg/m(3) to 100 microg/m(3), assuming 1 m(3) of air sample. The range can be extended upwards by appropriate dilution. Interconversion of trivalent and hexavalent chromium species may occur during sampling and sample preparation, but these processes are minimized to the extent possible by the sampling and sample preparation procedures employed. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Keywords
Standards; Chromium-compounds; Hexavalent-chromium-compounds; Heavy-metals; Analytical-methods
CAS No.
18540-29-9
Publication Date
20021201
Document Type
Book or book chapter
Funding Type
Construction
Fiscal Year
2003
NTIS Accession No.
NTIS Price
ISBN No.
0803132174
NIOSH Division
DART
Priority Area
Research Tools and Approaches: Exposure Assessment Methods
Source Name
Annual Book of ASTM Standards, ASTM International
State
OH
TOP