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ASTM D6832-13e1

(Test Method)

Standard Test Method for the Determination of Hexavalent Chromium in Workplace Air by Ion Chromatography and Spectrophotometric Measurement Using 1,5-diphenylcarbazide

Standard Test Method for the Determination of Hexavalent Chromium in Workplace Air by Ion Chromatography and Spectrophotometric Measurement Using 1,5-diphenylcarbazide

SIGNIFICANCE AND USE
5.1 Airborne hexavalent chromium is carcinogenic (1),4 and analytical methods for the measurement of this species in workplace aerosols are desired. Worker exposure to hexavalent chromium occurs primarily through inhalation (1), and this test method provides a means for exposure assessment to this highly toxic species. Analytical results from this procedure can be used for regulatory compliance purposes  (2).
SCOPE
1.1 This test method specifies a method for the determination of the time-weighted average mass concentration of hexavalent chromium in workplace air samples.  
1.2 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.  
1.3 The sample dissolution procedure specifies separate procedures for soluble and insoluble hexavalent chromium.  
1.4 The method is applicable to the determination of masses of 0.01 μg to 10 μg of hexavalent chromium per sample without dilution.  
1.5 The concentration range for hexavalent chromium in air for which this procedure is applicable is approximately 0.1 μg/m 3 to 100 μg/m3, assuming 1 m3 of air sample. The range can be extended upwards by appropriate dilution.  
1.6 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.  
1.7 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.8 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.

General Information

Status
Historical
Publication Date
30-Sep-2013
ICS
13.040.30 - Workplace atmospheres
Technical Committee
D22 - Air Quality
Drafting Committee
D22.04 - Workplace Air Quality
Current Stage
Ref Project

Relations

Replaces
ASTM D6832-13 - Standard Test Method for the Determination of Hexavalent Chromium in Workplace Air by Ion Chromatography and Spectrophotometric Measurement Using 1,5-diphenylcarbazide
Effective Date
01-Oct-2013
Replaced By
ASTM D6832-13(2018) - Standard Test Method for the Determination of Hexavalent Chromium in Workplace Air by Ion Chromatography and Spectrophotometric Measurement Using 1,5-diphenylcarbazide
Effective Date
01-Dec-2018
Referred By
ASTM D8208-19 - Standard Practice for Collection of Non-Fibrous Nanoparticles Using a Nanoparticle Respiratory Deposition (NRD) Sampler
Effective Date
01-Oct-2013
Referred By
ASTM D4844-16 - Standard Guide for Air Monitoring at Waste Management Facilities for Worker Protection
Effective Date
01-Oct-2013

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ASTM D6832-13e1 - Standard Test Method for the Determination of Hexavalent Chromium in Workplace Air by Ion Chromatography and Spectrophotometric Measurement Using 1,5-diphenylcarbazideASTM D6832-13e1 - Standard Test Method for the Determination of Hexavalent Chromium in Workplace Air by Ion Chromatography and Spectrophotometric Measurement Using 1,5-diphenylcarbazide
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ASTM D6832-13e1 - Standard Test Method for the Determination of Hexavalent Chromium in Workplace Air by Ion Chromatography and Spectrophotometric Measurement Using 1,5-diphenylcarbazide
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
´1
Designation: D6832 − 13
Standard Test Method for
the Determination of Hexavalent Chromium in Workplace Air
by Ion Chromatography and Spectrophotometric
1
Measurement Using 1,5-diphenylcarbazide
This standard is issued under the fixed designation D6832; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1
ε NOTE—Editorial corrections were made in October 2013.
1. Scope ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
1.1 This test method specifies a method for the determina-
mendations issued by the World Trade Organization Technical
tion of the time-weighted average mass concentration of
Barriers to Trade (TBT) Committee.
hexavalent chromium in workplace air samples.
1.2 Themethodisapplicabletothepersonalsamplingofthe
2. Referenced Documents
inhalablefractionofairborneparticles,asdefinedinISO7708,
2
and to area (static) sampling.
2.1 ASTM Standards:
D1193Specification for Reagent Water
1.3 The sample dissolution procedure specifies separate
D1356Terminology Relating to Sampling and Analysis of
procedures for soluble and insoluble hexavalent chromium.
Atmospheres
1.4 Themethodisapplicabletothedeterminationofmasses
D3195Practice for Rotameter Calibration
of 0.01 µg to 10 µg of hexavalent chromium per sample
D4840Guide for Sample Chain-of-Custody Procedures
without dilution.
E882Guide for Accountability and Quality Control in the
1.5 The concentration range for hexavalent chromium in air
Chemical Analysis Laboratory
for which this procedure is applicable is approximately 0.1
E1370Guide for Air Sampling Strategies for Worker and
3 3 3
µg/m to 100 µg/m , assuming 1 m of air sample. The range
Workplace Protection
can be extended upwards by appropriate dilution.
3
2.2 ISO Standards:
1.6 Interconversion of trivalent and hexavalent chromium
ISO648Laboratory Glassware—One-mark Pipets
species may occur during sampling and sample preparation,
ISO 1042 Laboratory Glassware—One-mark Volumetric
but these processes are minimized to the extent possible by the
Flasks
sampling and sample preparation procedures employed.
ISO3585Glass Plant, Pipeline and Fittings—Properties of
1.7 The values stated in SI units are to be regarded as
Borosilicate Glass 3.3
standard. No other units of measurement are included in this
ISO7708Air Quality—Particle Size Definitions for Health-
standard.
related Sampling
1.8 This standard does not purport to address all of the
ISO8655Piston and/or Plunger-operated Volumetric Appa-
safety concerns, if any, associated with its use. It is the
ratus (6 Parts)
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
3. Terminology
mine the applicability of regulatory limitations prior to use.
3.1 For definitions of terms used in this standard test
1.9 This international standard was developed in accor-
method, refer to Terminology D1356.
dance with internationally recognized principles on standard-
1 2
This test method is under the jurisdiction of ASTM Committee D22 on Air For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Quality and is the direct responsibility of Subcommittee D22.04 on WorkplaceAir contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Quality. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Oct. 1, 2013. Published October 2013. Originally the ASTM website.
3
approved in 2002. Last previous edition approved in 2008 as D6832–08. DOI: Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
10.1520/D6832-13E01. 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
´1
D6832 − 13
4. Summary of Test Method 6. Reactions
4.1 A known volume of air is drawn through a filter to 6.1 Reduction of hexavalent chromium to trivalent species
collect particulate hexavalent chromium. The sampler is de- can occur in acidic environments, and also in the presence of
signedtocollecttheinhalablefractionofairborneparticles(see organic material or environments having high iron concentra-
ISO7708). tions in air (3). Reduction of hexavalent chromium can also
occur on filter media (4), and efforts should to taken to
4.2 The filter and collected sample are subjected to a
minimize this contribution to sample loss. Oxidation of triva-
dissolutionprocedureinordertoextracthexavalentchromium.
lent chromium
...

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4.5 This guide cannot take the place of sound professional judgment in development and execution of any sampling strategy. In most instances, a strategy based on a standard practice or method will need to be adjusted due to conditions encountered in the field. Documentation of any professional judgments appli...
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  • Guide
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ASTM
ASTM D8404-21(Practice)
Standard Practice for Preparation of Soil Samples by Ammonium Bifluoride-Nitric Acid Digestion for Subsequent Analysis for Metals and Metalloids

SIGNIFICANCE AND USE
5.1 There is a need to monitor the content of metals and metalloids in order to determine the presence of potential hazards. Hence, effective and efficient methods are required for the preparation of soil samples for determination of metals and metalloids present therein.  
5.2 This practice may be used for the digestion of soil samples that are collected during various construction and renovation and hazard survey activities in and around buildings and related structures. The practice is also suitable for the digestion of soil samples for metal and metalloid analyses collected from other locations, such as near roads and steel structures. For some other extraction procedures, see Practices D3974.  
5.3 This practice is intended to be used to prepare samples that have been collected for hazard assessment purposes but may be used for other applications such as, for example, monitoring the effectiveness of remediation activities.  
5.4 This practice may be capable of determining metals and metalloids bound within matrices, such as silica, that are not soluble in nitric acid alone.  
5.5 This practice includes drying and homogenization steps to help assure that reported results are representative of the sample and are independent of potential differences in soil moisture levels among different sampling locations or changing weather conditions.
SCOPE
1.1 This practice covers drying, homogenization, and ammonium bifluoride-nitric acid digestion of soil samples and associated quality control (QC) samples for the determination of metals and metalloids using laboratory atomic spectrometry analysis techniques such as inductively coupled plasma mass spectrometry (ICP-MS), inductively coupled plasma atomic emission spectrometry (ICP-AES), flame atomic absorption spectrometry (FAAS), and graphite furnace atomic absorption spectrometry (GFAAS). For ammonium bifluoride-nitric acid digestion of airborne dust and dust-wipe samples for the determination of metals and metalloids, see Practice D8344.  
1.2 This practice is based on U.S. EPA SW 846, Test Method 3050, Test Method D7202, and Practice D8344.  
1.3 This practice contains notes that are explanatory and are not part of the mandatory requirements of this standard.  
1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.  
1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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