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Significance and Use
5.1 This practice is for use in the preparation of no more than four wipe samples combined to form a composited sample for subsequent determination of lead content.
5.2 This practice assumes use of wipes that meet Specification E1792 and should not be used unless the wipes meet Specification E1792.
5.3 This practice is capable of preparing samples for determination of lead bound within paint dust.
5.4 This practice may not be capable of preparing samples for determination of lead bound within silica or silicate matrices, or within matrices not soluble in nitric acid.
5.5 Adjustment of the nitric acid concentration or acid strength, or both, of the final extract solution may be necessary for compatibility with the instrumental analysis method to be used for lead quantification.
5.6 This sample preparation practice has not been validated for use and must be validated by the user prior to using the practice for client samples.
1.1 This practice covers the extraction of lead (Pb) using ultrasonication, heat and nitric acid from a composited sample of up to four individual wipe samples of settled dust collected from the same space.
1.2 This practice contains notes which are explanatory and not part of mandatory requirements of the practice.
1.3 This practice should be used by analysts experienced in digestion techniques such as hot blocks. Like all procedures used in an analytical laboratory, this practice needs to be validated for use and shown to produce acceptable results before being applied to client samples.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4.1 Exception—Inch-pound units are provided in Note 6 and Note 8 for information.
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Other Document40 CFR Part 745 Lead-Based Paint Poisoning Prevention in Certain Residential Structures
D1129 Terminology Relating to Water
D1193 Specification for Reagent Water
E1605 Terminology Relating to Lead in Buildings
E1613 Test Method for Determination of Lead by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES), Flame Atomic Absorption Spectrometry (FAAS), or Graphite Furnace Atomic Absorption Spectrometry (GFAAS) Techniques
E1728 Practice for Collection of Settled Dust Samples Using Wipe Sampling Methods for Subsequent Lead Determination
E1792 Specification for Wipe Sampling Materials for Lead in Surface Dust
E1979 Practice for Ultrasonic Extraction of Paint, Dust, Soil, and Air Samples for Subsequent Determination of Lead
E2051 Practice for the Determination of Lead in Paint, Settled Dust, Soil and Air Particulate by Field-Portable Electroanalysis
E2239 Practice for Record Keeping and Record Preservation for Lead Hazard Activities
ISO StandardsISO 3585 Borosilicate Glass 3.3 - Properties - Third Edition ISO/IEC 17025:2005 General Requirements for the Competence of Testing and Calibration Laboratories
ICS Number Code 13.040.99 (Other standards related to air quality); 71.040.50 (Physicochemical methods of analysis)
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ASTM E2914-14, Standard Practice for Ultrasonic Extraction of Lead from Composited Wipe Samples, ASTM International, West Conshohocken, PA, 2014, www.astm.orgBack to Top