NYC-WTC_000031870
Index or cover sheet page for the GCMS folder covering the period from November 7 to December 6, 2001.
1 shared topics · Same agency, volume and box · similarity 0.992
machine-extracted · confidence unavailable · Check page ↗Chromatogram and calibration data for DFTPP standard used to verify GC/MS instrument performance during environmental analysis.
NYC-WTC_000030680–000030684Folder label: “GCMS SCAN X 10/31/01 AN 11/21/01”

OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document ! I
Method 608 Date Extracted /93 / /21 Page i
Lab# Description Sample Drip rate Surr Spk IS Final T.V. pH Count m• vol/wt mi/min add add add vol. pos. = 7 Re chicC qoL aL cm . 4ml 5o Pes+ PLL 125% 2584S SPK chi 25845 80* Do?cht 05893 SPK 05873 sK -DvPToX 05894 SPK Pes+ 2s877 &PK. DoP (osi 2589S ( 25873 3 5938. f 4 059 40J 7 0S94%. k 251945. 7 r 5246— &‘s 9920 9 25998 4 25999, h Gi 20005. 03 $ / 2 6 00 7 / 1/ /
Remarks ob 008 7 0 6 009 7 J K of
th 600 12 -- es 9
e drip rate must be between 5-15 ml/min for liq-liq extractors drip rate - Naci lot# Extraction type - See Poanel Solv.lot# V33617 Na2S04 lot# V 326 O3 i STANDARD INT STD LOG# CALIBRATION REF/SPIKE 7sk, /92 a $ 1273 vao+ : 0039 b MDL/MDRF 4 Q. CHECK INT. STD. SURROGATE Q 069C LPC ENDRIN/DDT
PJ Analyst Cm/AC /mL Reviewed by /L \ revision 4/12/01 ’ Verified by Date 1 3 i
NYC-WTC_000030681
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_000031870
Index or cover sheet page for the GCMS folder covering the period from November 7 to December 6, 2001.
1 shared topics · Same agency, volume and box · similarity 0.992
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000032588
Technical document outlining GCMS method parameters, drip rates, and calibration values for environmental testing.
1 shared topics · Same agency, volume and box · similarity 0.990
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000031662
Index or cover sheet page for the GCMS folder covering the period from November 6 to December 7, 2001.
1 shared topics · Same agency, volume and box · similarity 0.990
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000086892
Technical form recording liquid-liquid extraction parameters including drip rates and pH measurements for WTC samples.
1 shared topics · similarity 0.992
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000068556
Log sheet recording liquid-liquid extraction parameters and sample processing details for November 2001.
1 shared topics · similarity 0.991
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000069951
Log sheet recording liquid-liquid extraction parameters and sample processing details for November 2001.
1 shared topics · similarity 0.991
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000069151
Fragmented laboratory data record from a GCMS scan performed in November 2001 regarding environmental samples.
1 shared topics · similarity 0.990
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000035423
Label for a GCMS environmental sample collected between November and December 2001.
1 shared topics · similarity 0.990
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000005147
Multi-page laboratory data sheet containing sample analysis results and metadata for DEP GCMS records from January to February 2002.
1 shared topics · similarity 0.990
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000035515
Fragmented document header containing metadata for gas chromatography-mass spectrometry analysis.
1 shared topics · similarity 0.989
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000068721
Document page containing identification codes for GCMS scans conducted in November 2001 within DEP Box 60.
1 shared topics · similarity 0.989
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000069815
Fragmented page showing laboratory method parameters and sample processing details for November 2001.
1 shared topics · similarity 0.989
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.
Gas chromatography-mass spectrometry scan record from late October to November 2001 regarding environmental sample analysis.
Filed in the same folder
NYC-WTC_000030685
Header page for a gas chromatography-mass spectrometry scan file related to environmental testing at the World Trade Center site.
Filed in the same folder
NYC-WTC_000030698
Gas chromatography-mass spectrometry analysis of sample AD25845, December 12, 2001, identifying other unknown compounds with threshold of 5.0 ug.
Filed in the same folder
NYC-WTC_000030708
Laboratory report documenting GCMS analysis of sample AD25873 conducted on December 12, 2001, noting unknown compounds.
Filed in the same folder
NYC-WTC_000030719
Laboratory commentary on GCMS scan of sample AD25874 dated December 13, 2001, identifying tetrachloroethane and noting a blank analysis.
Filed in the same folder