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ASTM D7441-08(2013)
Standard Practice for Separation of Beryllium from Other Metals in Digestion and Extraction Solutions from Workplace Dust Samples (Withdrawn 2018)
Automaticky přeložený název:
Standardní praxe pro separaci berylia z jiných kovů při trávení a extrakci řešení ze vzorků pracoviště prachu
NORMA vydána dne 1.4.2013
Informace o normě:
Označení normy: ASTM D7441-08(2013)
Poznámka: NEPLATNÁ
Datum vydání normy: 1.4.2013
Kód zboží: NS-38463
Počet stran: 5
Přibližná hmotnost: 15 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Kategorie - podobné normy:
Anotace textu normy ASTM D7441-08(2013) :
Keywords:
beryllium, extraction chromatography, sample preparation, separation, ICS Number Code 13.040.20 (Ambient atmospheres)
Doplňující informace
| Significance and Use | |||
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5.1 Beryllium is an important analyte in industrial hygiene because of the risk of exposed workers developing Chronic Beryllium Disease (CBD). CBD is a granulomatous lung disease that is caused by the body’s immune system response to inhaled dust or fumes containing beryllium, a human carcinogen (Cerium |
Chromium |
Hafnium |
Molybdenum |
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Niobium |
Thorium |
Titanium |
Thulium |
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Uranium |
Vanadium |
Uranium |
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Measurement of beryllium on the order of 1 ppb (0.003 µg Be/100 cm2 wipe sample) has been successfully accomplished in the presence of spectrally interfering elements on the order of hundreds of ppm. This method has been validated on matrices containing 10 mg of each of the above elements. In some cases including interferents such as chromium and calcium, the single 2 mL beryllium extraction chromatography resin can handle >100 mg of total dissolved solids and still deliver >90 % beryllium yield. Should the matrix contain greater amounts of contaminants, additional resin may be used or, more likely, a combination of different resins may be used. (3,4).
1.1 This practice covers the separation of beryllium from other metals and metalloids in acid solutions, by extraction chromatography, for subsequent determination of beryllium by atomic spectroscopy techniques such as inductively coupled plasma atomic emission spectroscopy (ICP-AES).
1.2 This practice is applicable to samples of settled dust that have been collected in accordance with Practices D6966 or D7296.
1.3 This practice is compatible with a wide variety of acid digestion techniques used in digesting settled dust samples, such as those described in Test Method D7035.
1.4 This practice is appropriate for the preparation of settled dust samples where an unacceptable bias is suspected or known because of spectral interferences caused by other metals or metalloids present in the sample. This practice may also be appropriate for the analysis of other types of samples.
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 and health practices and determine the applicability of regulatory limitations prior to use.
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Standard Guide for Accountability and Quality Control in the Chemical Analysis Laboratory (Includes all amendments and changes 10/27/2017). |
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Standard Test Method for Determination of Metals and Metalloids in Airborne Particulate Matter by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) |
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Standard Practice for Collection of Settled Dust Samples Using Wipe Sampling Methods for Subsequent Determination of Metals |
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Standard Terminology Relating to Sampling and Analysis of Atmospheres (Includes all amendments and changes 9/7/2020). |
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Standard Specification for Reagent Water |
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Standard Practice for Collection of Settled Dust Samples Using Dry Wipe Sampling Methods for Subsequent Determination of Beryllium and Compounds |
