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ASTM E2451-2008 从火灾残留碎片样本中保存可燃液体和可燃液体残留提取物的标准实施规程

ASTM E2451-2008 从火灾残留碎片样本中保存可燃液体和可燃液体残留提取物的标准实施规程

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【英文标准名称】: Standard Practice for Preserving Ignitable Liquids and Ignitable Liquid Residue Extracts from Fire Debris Samples
【原文标准名称】: 从火灾残留碎片样本中保存可燃液体和可燃液体残留提取物的标准实施规程
【标准号】: ASTM E2451-2008
【标准状态】: 现行
【国别】: 美国
【发布日期】: 2008
【实施或试行日期】:
【发布单位】: 美国材料与试验协会(US-ASTM)
【起草单位】: E30.01
【标准类型】: (Practice)
【标准水平】: ()
【中文主题词】:
【英文主题词】: analysis; archiving; extract preservation; fire debris; forensic science; ignitable liquid residue; sample extract; sample preservation; storage
【摘要】: The archiving of extracts recovered from fire debris or liquids submitted in a fire investigation provides a mechanism to preserve extracts and liquids for reanalysis in the event that sample loss, sample degradation, or failure of the fire debris container occurs during post-analysis storage of fire debris evidence. The nature of some extraction procedures, which may preclude reanalysis, is considered. Changes to a preserved sample extract and the length of time it remains viable under storage conditions are unknown. The concentration and composition of the ignitable liquid residue or the use of an alternate extraction/concentration technique used to preserve a sample extract of the fire debris sample may result in different findings between the analysis of the preserved sample and the original analysis.1.1 This practice describes procedures for preserving residues of ignitable liquids in extracts obtained from fire debris samples and questioned ignitable liquid samples. Extraction procedures are described in the Referenced Documents. 1.2 This practice does not attempt to address all the issues regarding the short-term or long-term storage of ignitable liquid samples and ignitable liquid extracts from fire debris samples. The changes that may occur under various storage conditions have not been fully documented. 1.3 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.
【中国标准分类号】: C80
【国际标准分类号】: 13_220_40
【页数】: 2P.;A4
【正文语种】: 英语

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