Duplicate vs replicate sampling
[DOC File]REFERENCES
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Field blank and replicate sampling results for the discrete water quality sampling (physico/chemical and bacteriological) are provided in Tables A.2-1 through A.2-4. Tables A.2-5 and A.2-6 contain laboratory QA/QC data for organics in tissue analyses and metals in tissue analyses, respectively.
[DOC File]APPENDIX E
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With limited sample mass available for primary TAL analyses, duplicate or replicate sample protocol may not be viable or feasible (if the team leader determines a duplicate sample is viable, he or she will use the extra bags supplied by the field office). If viable, duplicate samples can be taken for 1 in 10-samples. 8.0 SAFETY PRECAUTIONS
[DOC File]State of California
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6. "Replicate test" means an emission test or a set of duplicate tests run on a particular vehicle and a particular fuel as a repetition of another test or set of tests on the same vehicle and fuel, with draining and re-filling the fuel tank and the pre-test dynomometer dynamometer cycles, as described in VII.D., between the tests or sets of tests.
[DOCX File]Equis Lab Standard Operating Procedure
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Matrix spikes and lab duplicate/replicate are "Lab" samples, even though the parent is a "Field" and the base sample came from the field. The spiking or splitting for duplication is done in the lab. Field duplicates as submitted to the lab by field sampling teams are “Field”
Lake Sampling Procedures – LTT Water Quality
Lake Sampling Procedures – LTT Water Quality. REVISED 07/03/2014 – Katie Hein, WT/4. Overview. Water quality monitoring on Long Term Trend lakes includes total phosphorus and Secchi depth during spring overturn and collection of additional parameters 3 times during a summer index period (15 July - …
[DOC File]QUALITY ASSURANCE MANUAL
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When preparing replicate samples for quality control purposes, prepare the replicate at exactly the same dilutions as the original sample. Using a large-tipped pipet for samples less than 50 mL or a graduated cylinder for larger sample volumes, measure the proper amount of well-mixed sample into thoroughly cleaned and rinsed 300 mL bottles.
[DOC File]SAMPLING AND ANALYSIS PLAN GUIDANCE AND TEMPLATE
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SAMPLING AND ANALYSIS PLAN. GUIDANCE AND TEMPLATE. VERSION 3, Brownfields Assessment Projects. R9QA/008.1. August 8, 2012. This Sampling and Analysis Plan (SAP) guidance and template is intended to assist organizations in documenting the procedural and analytical requirements for Brownfields Assessment projects involving the collection of water, soil, sediment, or …
[DOC File]1
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Replicate samples should be taken at reaches that are similar in depth, substrate, composition, and gradient. Be careful to not contaminate one site with the other when disturbing substrate (ie. do not disturb the duplicate site with debris from the first site sampled).
[DOC File]STUDY PROFILE - US EPA
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Sampling Interval (Days after treatment) Transferable Residue Level (μg/cm2) Statistical summary of Transferable Residue Levels Replicate 1 Replicate 2 Replicate 3 Replicate 4 Replicate 5 Arithmetic Mean (μg/cm2) Standard Deviation (μg/cm2) Coefficient of Variation (%) Natural Log of Mean (μg/cm2) 0 hrs 2 hrs 12 hrs 24 hrs 48 hrs
[DOC File]National Analytical Management Program
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TNI EL-V1M6-2009, Section 1.7.3.3 a)iii) 8.10 Replicates / MS Duplicates / LCS Duplicates 8.10.1 Is at least one duplicate sample prepared and analyzed with every analytical batch of samples? QSM Rev. 5.0, Module 6, Section 1.7.2.3 b)vii) 8.10.2 Is the duplicate counted for the same duration of time to meet the required detection limit?
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