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Standard Test Method for Determination of Elements in Airborne Particulate Matter by Inductively Coupled Plasmaâ€“Mass Spectrometry
NORMA vydaná dňa 1.9.2021
Označenie normy: ASTM D7439-21
Dátum vydania normy: 1.9.2021
Kód tovaru: NS-1041752
Počet strán: 27
Približná hmotnosť: 81 g (0.18 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
analysis, elements, mass spectrometry, metals, metalloids, sample preparation, workplace air,, ICS Number Code 13.040.30 (Workplace atmospheres)
|Significance and Use|
5.1The health of workers in many industries is at risk through exposure by inhalation to toxic metals and metalloids. Industrial hygienists and other public health professionals need to determine the effectiveness of measures taken to control workplace exposure. This is generally achieved by making workplace air measurements. This test method has been developed to make available a standard methodology for valid exposure measurements for a wide range of metals and metalloids that are used in industry. It will be of benefit to agencies concerned with health and safety at work; analytical laboratories; industrial hygienists and other public health professionals; industrial users of metals and metalloids and their workers; and other groups.
5.2This test method specifies a generic method for determination of the concentration of metals and metalloids in workplace air samples using ICP-MS. For many metals and metalloids, analysis by ICP-MS may be advantageous, when compared to methods such as ICP atomic emission spectrometry, due to its sensitivity and the presence of fewer spectral interferences.
5.3The analysis results can be used for the assessment of workplace exposures to metals and metalloids in workplace air.
1.1This test method specifies a procedure for sample preparation and analysis of airborne particulate matter for the content of metals and metalloids in workplace air samples using inductively coupled plasmamass spectrometry (ICP-MS). This test method can be used for other air samples provided the user ensures the validity of the test method (by ensuring that appropriate data quality objectives can be achieved).
1.2This test method assumes that samples will have been collected in accordance with Test Method with consideration of guidance regarding wall deposits provided in Guide .
1.3This test method should be used by analysts experienced in the use of ICP-MS, the interpretation of spectral and matrix interferences and procedures for their correction.
1.4This test method specifies a number of alternative methods for preparing test solutions from samples of airborne particulate matter. One of the specified sample preparation methods is applicable to the measurement of soluble metal or metalloid compounds. Other specified methods are applicable to the measurement of total metals and metalloids.
1.5It is the user's responsibility to ensure the validity of this test method for samples collected from untested matrices.
1.6 provides a non-exclusive list of metals and metalloids for which one or more of the sample dissolution methods specified in this document is applicable.
1.7This test method is not applicable to compounds of metals and metalloids that are present in the gaseous or vapor state.
1.8Table 3 provides examples of instrumental detection limits (IDL) that can be achieved with this test method. Table 5 provides examples of method detection limits (MDL) that can be achieved.
1.9No detailed operating instructions are provided because of differences among various makes and models of suitable ICP-MS instruments. Instead, the analyst shall follow the instructions provided by the manufacturer of the particular instrument. This test method does not address comparative accuracy of different devices or the precision between instruments of the same make and model.
1.10The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.11This test method contains notes that are explanatory and are not part of the mandatory requirements of the method.
1.12This 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.
1.13This 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.
|2. Referenced Documents|
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