Trip blanks definition

Trip blanks means a set of sample containers filled with analyte-free water that originates in the environmental laboratory, travels to the field site and remains unopened. This blank checks for potential contamination sources in sample container preparation, method blank water, and sample transport.
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Examples of Trip blanks in a sentence

  • Trip blanks rendered unacceptable while in the possession of the laboratory shall result in a fifty (50%) percent reduction in the analysis fee for the accompanying field samples.

  • Trip blanks were transported with the other sampling bags to the site and returned to the laboratory for analysis.

  • Trip blanks for VOCs will be filled and sealed by the analytical laboratory with laboratory-controlled, organic-free water.

  • Trip blanks are analyzed for determination of contamination attributable to shipping and handling procedures.

  • Trip blanks are samples of an analyte-free media that are prepared by the analyzing laboratory and transported to field along with other sampling containers.

  • Trip blanks will be submitted for any ▇▇▇▇▇▇▇▇▇▇ site sampled for VOCs, at a frequency of one trip blank per cooler.

  • Trip blanks indicate if any activities after obtaining the trip blank may have contaminated samples during transport.

  • Trip blanks, rinsate blanks, and field duplicates will be used to assess field and transportation contamination, as well as analytical method variation.

  • Trip blanks are kept with the environmental samples collected from the site and are be sent back to the laboratory for the same analysis as the site samples.

  • Trip blanks, consisting of deionized water, will also be submitted for each specified analysis.