Field blank definition

Field blank means an aliquot of reagent water exposed to the environment during field sample collection and processed in the laboratory as an environmental sample. A field blank is used to document that contamination is not introduced during sample collection.
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Field blank means a new, unused dust wipe that has been exposed to the on-site sampling conditions and analyzed to determine whether the sampling media is lead free or contaminated.
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Field blank means a sample of water which, prior to use, is known to be free of contaminants, and which is processed through the sampling equipment in the field in the same manner as the actual water sample to determine if field procedures intro- duce contaminants into the samples. This is also known as a “rinse blank.”
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Examples of Field blank in a sentence

  • Field blank results: Criteria for field blanks are that analyte concentrations must be below the PQL, or below 10% of the lowest associated sample concentration.

  • To avoid analytical bias, all analyses for a given class of contaminant were conducted by the same reference laboratory,i.e. Nantes for metals, Paris for BPA, APnEOs and PBDEs, Strasbourg for pesticides and Lyon for PAHs.Table 3: Pollutants analyzed and analytical methods Field blank results indicate no particular contamination from sampling devices and/or sample pre-treatment procedure for most pollutants monitored (n=77).

  • Field blank filters will be collected that are transported to the sampling site and placed in the sampler for the duration of sampling without sampling.

  • The following items should be included when using USEPA Methods:  Initial calibration; Daily calibration/continuing calibration; Laboratory control spike; Internal standards; Surrogates; Method blank; and Field blank.

  • Field blank samples will be obtained by pouring deionized water into a sampling container at the sampling point.

  • Field blank filters (N = 6) were similarly collected, processed (i.e. 3 filters extracted in Milli-Q water and 3 in methanol) and analyzed30 for the DTT activity.

  • Therefore anyone, from manufacturer to user, can conduct the testing needed to verify conformance to the standard.✦ Field blank samples.

  • Field blank samples will be obtained by pouring High Performance Liquid Chromatography (HPLC) organic-free water (for organics) and/or deionized water (for inorganics) into a sampling container at the sampling point.

  • Field blank allocations were then increased, beginning with PTFE and nylon filter samples from March 2017 and quartz filter samples from May 2017, to collect approximately one field blank per filter type at each site per month.

  • Field blank samples will be obtained by pouring deionized water into a sampling container at the sampling point.The field blanks that are collected will be analyzed for metals.


More Definitions of Field blank

Field blank means a new, unused dust wipe that has been exposed to the on­site sampling conditions and analyzed to determine whether the sampling media is below the minimum reporting level of the analyzing laboratory.
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Field blank means a sample that is known not to contain the target analyte and that is used to check for analytical artifacts or
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Related to Field blank

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