NYC-WTC_000024748
Reference document describing Method 509 procedures for laboratory analysis, dated February 14, 1992.
1 shared topics · Same agency, volume and box · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗Record of sample preparation parameters including drip rates and volumes for GCMS analysis conducted in mid-May 2002.
NYC-WTC_000024427–000024436Folder label: “GCMS X 5/13/02 A 5/16/02”

OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
LSC Area Percent Report
Data File : C:\MSDCHEM\1\DATA\020515\0513LB2.D Vial: 4 Acq On : 15 May 2002 2:47 pm Operator: Nefliu Sample : 05/13 lab blk Inst : Instrumen Mise : Multiplr: 1.00 MS Integration Params: rteint.e
Method : C:\MSDCHEM\1\METHODS\SCAN020507.M (RTE Integrator) Title : Method 508 GC/MS Scan Smoothing : ON Filtering: 5 Sampling : 1 Min Area: 0.5 % of largest Peak Start Thrs: 0.2 Max Peaks: 100 Stop Thrs : 0 Peak Location: TOP
If leading or trailing edge < 100 prefer < Baseline drop else tangent > Peak separation: 5
Signal : TIC
peak R.T. first max last PK peak corr. corr. % of # min scan scan scan TY height area % max. total
1 6.152 517 523 563 rBV 750939 1519689 38.54% 6.452% 2 11.376 1400 1412 1434 rBV 1154031 2959486 75.04% 12.564% 3 16.534 2271 2290 2312 rBV 1405032 3689178 93.55% 15.662% 4 24.455 3622 3638 3652 rBV 1394677 3821378 96.90% 16.223% 5 27.545 4146 4164 4177 rBV4 829683 2363595 59.93% 10.035%
6 28.903 4390 4395 4404 rVB7 7792 20546 0.52% 0.087% 7 31.094 4758 4768 4777 rVB3 9669 25407 0.64% 0.108% 8 31.717 4857 4874 4904 rBV2 1282094 3943636 100.00% 16.743% 9 31.964 4907 4916 4925 rVB5 10400 29982 0.76% 0.127% 10 39.931 6260 6272 6297 rBV2 1496078 2897261 73.47% 12.300%
11 40.519 6362 6372 6397 rBV2 104836 275379 6.98% 1.169% 12 43.151 6810 6820 6858 rBV2 978891 2009096 50.95% 8.530%
Sum of corrected areas: 23554633
0513LB2.D SCAN020507.M Thu May 16 14:44:09 2002 Page 1
NYC-WTC_000024430
OCR can misread numbers and units. Confirm readings against the page image before using them.
Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
NYC-WTC_000024748
Reference document describing Method 509 procedures for laboratory analysis, dated February 14, 1992.
1 shared topics · Same agency, volume and box · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000024534
Laboratory report showing blank test results for GCMS analysis of sample AE11282 conducted between May 13 and May 16, 2002.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000022495
Technical log detailing gas chromatography mass spectrometry method parameters and calibration settings from May 2002.
1 shared topics · Same agency, volume and box · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000024652
GCMS analysis for sample AE11157 identifying other unknown compounds with a 2,4-DDD surrogate recovery of 91%, completed May 22, 2002.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000024804
Laboratory report documenting GCMS analysis of sample AE10242 conducted on May 28, 2002, including surrogate recovery data.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000025499
Laboratory report showing non-detect levels for 15 volatile organic compounds in a GCMS method blank processed on May 17-21, 2002.
1 shared topics · Same agency, volume and box · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000022609
Laboratory commentary regarding low recovery and subsequent re-analysis of sample AE10519 conducted on May 29, 2002.
1 shared topics · Same agency, volume and box · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000025568
GCMS analysis report for sample AE11567 showing unknown compounds and surrogate recovery data from May 29, 2002.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000024824
Laboratory report documenting GCMS analysis of sample AE10243 conducted on May 28, 2002, including surrogate recovery data.
1 shared topics · Same agency, volume and box · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000046117
Laboratory report showing GCMS blank results for volatile organic compounds from sample AE10068 dated May 7-13, 2002.
1 shared non-person entities · 1 shared topics · similarity 0.996
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000048602
Laboratory blank analysis results confirming absence of contamination in GCMS testing for volatile organic compounds.
1 shared topics · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000048085
Laboratory report showing non-detect results for volatile organic compounds in a GCMS blank run (Sample AE08323) from April to May 2002.
1 shared topics · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
Page similarity is temporarily unavailable or this page has no indexed vector.
Readers open these alongside this record — through an Ask answer, the same folder, or indexed similarity. Not a claim they are about the same event.
NYC-WTC_000024423
Department of Environmental Protection administrative record sheet for World Trade Center site activities dated May 2002.
Filed in the same folder
NYC-WTC_000024424
Brief log entry or header page from a GCMS analysis record dated between May 13 and May 16, 2002.
Filed in the same folder
NYC-WTC_000024437
Laboratory report showing calibration results for volatile organic compounds using GCMS methods between May 13 and May 15, 2002.
Filed in the same folder
NYC-WTC_000024441
Laboratory record of reference standard analysis for volatile organic compounds using GCMS methods from May 13 to May 15, 2002.
Filed in the same folder
NYC-WTC_000024450
Chain of custody record for GCMS analysis of sample AE10986 on May 22, 2002, including surrogate compound data.
Filed in the same folder