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ASTM D6832-08

(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
Airborne hexavalent chromium is carcinogenic (1), 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/m3 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 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
31-Jul-2008
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 D6832-02 - 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-Aug-2008
Replaced By
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
Referred By
ASTM D8208-19 - Standard Practice for Collection of Non-Fibrous Nanoparticles Using a Nanoparticle Respiratory Deposition (NRD) Sampler
Effective Date
01-Aug-2008
Referred By
ASTM D4844-16 - Standard Guide for Air Monitoring at Waste Management Facilities for Worker Protection
Effective Date
01-Aug-2008

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ASTM D6832-08 - Standard Test Method for the Determination of Hexavalent Chromium in Workplace Air by Ion Chromatography and Spectrophotometric Measurement Using 1,5-diphenylcarbazideASTM D6832-08 - 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 D6832-08 - 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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REDLINE ASTM D6832-08 - Standard Test Method for the Determination of Hexavalent Chromium in Workplace Air by Ion Chromatography and Spectrophotometric Measurement Using 1,5-diphenylcarbazideREDLINE ASTM D6832-08 - 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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Standards Content (Sample)

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
Designation: D6832 − 08
StandardTest 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. Scope D1356Terminology Relating to Sampling and Analysis of
Atmospheres
1.1 This test method specifies a method for the determina-
D3195Practice for Rotameter Calibration
tion of the time-weighted average mass concentration of
D4840Guide for Sample Chain-of-Custody Procedures
hexavalent chromium in workplace air samples.
E882Guide for Accountability and Quality Control in the
1.2 Themethodisapplicabletothepersonalsamplingofthe
Chemical Analysis Laboratory
inhalablefractionofairborneparticles,asdefinedinISO7708,
E1370Guide for Air Sampling Strategies for Worker and
and to area (static) sampling.
Workplace Protection
3
1.3 The sample dissolution procedure specifies separate 2.2 ISO Standards:
ISO648Laboratory Glassware—One-mark Pipets
procedures for soluble and insoluble hexavalent chromium.
ISO 1042 Laboratory Glassware—One-mark Volumetric
1.4 Themethodisapplicabletothedeterminationofmasses
Flasks
of 0.01 µg to 10 µg of hexavalent chromium per sample
ISO3585 Glass Plant, Pipeline and Fittings—Properties of
without dilution.
Borosilicate Glass 3.3
1.5 The concentration range for hexavalent chromium in air
ISO7708Particle Size Definitions for Health-related Sam-
for which this procedure is applicable is approximately 0.1
pling
3 3 3
µg/m to 100 µg/m , assuming 1 m of air sample. The range
ISO8655 Piston and/or Plunger-operatedVolumetricAppa-
can be extended upwards by appropriate dilution.
ratus (6 Parts)
1.6 Interconversion of trivalent and hexavalent chromium
3. Summary of Test Method
species may occur during sampling and sample preparation,
3.1 A known volume of air is drawn through a filter to
buttheseprocessesareminimizedtotheextentpossiblebythe
collect particulate hexavalent chromium. The sampler is de-
sampling and sample preparation procedures employed.
signedtocollecttheinhalablefractionofairborneparticles(see
1.7 This standard does not purport to address all of the
ISO7708).
safety concerns, if any, associated with its use. It is the
3.2 The filter and collected sample are subjected to a
responsibility of the user of this standard to establish appro-
dissolutionprocedureinordertoextracthexavalentchromium.
priate safety and health practices and determine the applica-
The sample dissolution procedure may consist of one (or both)
bility of regulatory limitations prior to use.
of two techniques: one for soluble and one for insoluble
2. Referenced Documents hexavalent chromium.
2
2.1 ASTM Standards:
NOTE 1—If it is desired to measure both soluble as well as total
hexavalent chromium, the soluble procedure is used first, and this is
D1193Specification for Reagent Water
followed by the procedure for insoluble hexavalent chromium com-
pounds.Thus, total Cr[VI] is the sum of soluble and insoluble hexavalent
chromium compounds. On the other hand, if it is desired to measure total
1
This test method is under the jurisdiction of ASTM Committee D22 on Air
hexavalent chromium without first isolating insoluble Cr[VI] compounds,
Qualityand is the direct responsibility of Subcommittee D22.04 on Workplace Air
onlytheprocedureforinsolubleCr[VI]isrequired(thiswilldissolveboth
Quality.
soluble and insoluble hexavalent chromium compounds).
Current edition approved Aug. 1, 2008. Published September 2008. Originally
approved in 2002. Last previous edition approved in 2002 as D6832-02. DOI:
3.2.1 For dissolution of soluble hexavalent chromium, dis-
10.1520/D6832-08.
tilled water with no heating is used to treat the sample.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 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 ----------------------
D6832 − 08
NOTE 2—In general, personal samples for collection of the inhalable
Alternatively, a weakly basic ammonium sulfate/ammonium
fraction of airborne particles do not exhibit the same size selective
hydroxide buffer solution with no heating is used to extract
chara
...

This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:D6832–02 Designation:D6832–08
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 D 6832; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. 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 3
3 to 100 µg/m , assuming 1 m 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 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D 1193 Specification for Reagent Water
D1605Terminology Related to Atmospheric Sampling 1356 Terminology Relating to Sampling and Analysis of Atmospheres
D 3195 Practice for Rotameter Calibration
D 4840 Guide for SamplingSample Chain-of-Custody Procedures
E 882 Guide for Accountability and Quality Control in the Chemical Analysis Laboratory
E 1370 Guide for Air Sampling Strategies for Worker and Workplace Protection
3
2.2 ISO Standards:
ISO 648Laboratory Glassware— One-mark Pipets
ISO1042Laboratory Glassware— One-mark Volumetric Flasks Laboratory Glassware—One-mark Pipets
ISO 1042 Laboratory Glassware—One-mark Volumetric Flasks
ISO 3585 Glass Plant, Pipeline and Fittings—Properties of Borosilicate Glass 3.3
ISO 7708 Particle Size Definitions for Health-related Sampling
ISO 8655 Piston and/or Plunger-operated Volumetric Apparatus (6 Parts)
3. Summary of Test Method
3.1 A known volume of air is drawn through a filter to collect particulate hexavalent chromium. The sampler is designed to
collect the inhalable fraction of airborne particles (see ISO 7708).
1
This test method is under the jurisdiction ofASTM Committee D22 on Sampling andAnalysis ofAtmospheres and is the direct responsibility of Subcommittee D22.04
on Workplace Atmospheres.
Current edition approved October 10, 2002. Published December 2002.
1
This test method is under the jurisdiction of ASTM Committee D22 on Air Quality and is the direct responsibility of Subcommittee D22.04 on Workplace Air Quality
.
Current edition approved Aug. 1, 2008. Published September 2008. Originally approved in 2002. Last previous edition approved in 2002 as D 6832 - 02.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 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 ----------------------
D6832–08
3.2 Thefilterandcollectedsamplearesubjectedtoadissolutionprocedureinordertoextracthexavalentchromium.Thesample
dissolution procedure may consist of one (or both) of two techniques: one for soluble and one for insoluble hexavalent chromium.
NOTE 1—If it is desired to measure both soluble as well as total hexavalent chromium, the soluble procedure is used first, and this is followed by the
procedure for insoluble hexavalent chro
...

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SIGNIFICANCE AND USE
4.1 This guide describes standard approaches used to formulate air sampling strategies before actual air sampling occurs.  
4.2 For most workplace air sampling purposes, and for the majority of materials sampled, air sampling strategies are matters of choice. Air sampling in the workplace may be done for single or multiple purposes, such as health impact, hazard or risk assessment, compliance assessment, or investigation of complaints. Problems can arise when a single air sampling strategy is expected to satisfy multiple diverse purposes.  
4.2.1 Proper consideration of limitations of cost, space, power requirements, equipment, analytical methods, training and personnel result in a best available strategy for each purpose.  
4.2.2 A strategy designed to satisfy multiple purposes must be a compromise among several alternatives, and will not be optimum for any one purpose; however, the strategy should be appropriate for the intended purpose(s).  
4.2.3 The purpose or purposes for sampling should be explicitly stated before a sampling strategy is selected in order to ensure that the sampling strategy is appropriate for the intended use. Good sampling practice, legal requirements, cost of the sampling program, and the utility of the results may be markedly different for different intended sampling purposes.  
4.3 This guide is intended for use by those who are preparing to evaluate air quality in a work environment of a location by air sampling, or who wish to obtain an understanding of what information can be obtained by carrying out air sampling.  
4.4 This guide should not be used as a stand-alone document to evaluate any given airborne contaminant(s).  
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...
SCOPE
1.1 This guide describes criteria to be used in defining air sampling strategies for workplace health and safety monitoring or evaluation. Sampling criteria such as duration, frequency, number, location, method, equipment, and timing are all considered.  
1.2 Where air sampling is prescribed by law or regulation, this guide is not intended to take the place of any requirements that may be specified in such law or regulation.  
1.3 Guidance for surface sampling strategies for metals and metalloids is provided in Guide D7659.  
1.4 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.  
1.5 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.

  • Guide
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  • Guide
    11 pages
    English language
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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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ASTM
ASTM D8405-21(Test Method)
Standard Test Method for Evaluating PM2.5 Sensors or Sensor Systems Used in Indoor Air Applications

SIGNIFICANCE AND USE
5.1 Poor indoor air quality has been implicated in significant adverse acute and chronic impacts on occupant health and performance. The ability to assess the components contributing to poor indoor air quality is critical for determining best practices for improving indoor air quality.  
5.2 Measurement of pollutants in indoor environments using sensors and sensor systems provides information needed to improve indoor air quality through pollutant source control, ventilation, filtration or other treatments.  
5.3 This method uses a test characterization chamber system equipped with reference monitor(s) to evaluate the response of test sensors or test sensor systems to specific types of particles (for example, salt, polystyrene latex, or dust). To facilitate reproducible results, the test particles used within this method are standardized and have known properties. The user is cautioned that a single particle type is not representative of all particles found indoors. The relative response of test sensors or test sensor systems to a reference monitor can vary by a factor of two for different particle types (for example, primary or secondary, organic or inorganic, outdoor or indoor origin; see 6.11.3 for further discussion). Furthermore, the user is cautioned that the lower limit of particle size detection for optical test sensors and test sensor systems is generally 0.3 μm in diameter; particles below this size are generally undetected and may represent a significant health concern as well.
SCOPE
1.1 This test method uses a chamber system to evaluate the performance of stationary PM2.5 sensors (sensors) and particle sensor systems (sensor systems) subjected to various test conditions, including temperature, relative humidity, PM2.5 concentration, and coarse PM interferent concentration.  
1.1.1 This test method covers sensors and sensor systems that can be continuously powered and continuously operated for the duration of any test described in this method through line power or an internal battery of sufficient output. This test method is not meant to evaluate sensors or sensor systems without these capabilities.  
1.1.2 This test method evaluates the performance of sensors and sensor systems that allow users to collect data in a systemic manner to assess the capabilities and limitations of these devices.  
1.1.3 This test method is not meant to evaluate sensors or sensor systems without data storage and recording capabilities.  
1.1.4 This test method is not intended to evaluate indoor air quality sensors and sensor systems for purposes of regulation of outdoor air, homeland security, law enforcement or forensic activity.  
1.2 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.  
1.3 The text of this standard references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.  
1.4 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.  
1.5 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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