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Standard Practice for Ultrasonic Extraction of Paint, Dust, Soil, and Air Samples for Subsequent Determination of Lead
Přeložit název
NORMA vydána dne 1.11.2021
Označení normy: ASTM E1979-21
Datum vydání normy: 1.11.2021
Kód zboží: NS-1099559
Počet stran: 7
Přibližná hmotnost: 21 g (0.05 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Ostatní normy týkající se akustiky
Fyzikálně chemické analytické metody
Keywords:
airborne particulate matter, dry paint film, lead, sample preparation, settled dust, soils, ultrasonic extraction,, ICS Number Code 17.140.99 (Other standards related to acoustics),71.040.50 (Physicochemical methods of analysis)
Significance and Use | ||||||||||||||||||||||||||
5.1?Ultrasonic extraction using dilute nitric acid is a simpler and easier method for extracting lead from environmental samples than are traditional digestion methods that employ hot plate or microwave digestion with concentrated acids 5.2?In contrast with hot plate or microwave digestion techniques, ultrasonic extraction is field-portable, which allows for on-site sample analysis. |
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1. Scope | ||||||||||||||||||||||||||
1.1?This practice covers an ultrasonic extraction procedure for the extraction of lead from environmental samples of interest in lead abatement and renovation (or related) work, for analytical purposes. 1.2?Environmental matrices of concern include dry paint films, settled dusts, soils, and air particulates. 1.3?Samples subjected to ultrasonic extraction are prepared for subsequent determination of lead by laboratory analytical methods. 1.4?This practice includes, where applicable, descriptions of procedures for sample homogenization and weighing prior to ultrasonic extraction. 1.5?The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6?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. 1.7?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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2. Referenced Documents | ||||||||||||||||||||||||||
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