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.
NYC-WTC_000055132
Laboratory sampling record for Method 5.25 showing flow rates, volumes, and collection parameters.
Similarity score 0.987 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000056893
Laboratory record documenting drip rates, pH levels, and particle counts for environmental samples processed in October 2001.
Similarity score 0.987 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000015739
Record of Method 508d GCMS analysis parameters, calibration checks, and extraction notes for June 2002.
Similarity score 0.987 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000056221
Administrative record or cover sheet for environmental samples analyzed between November and December 2001 by the Department of Environmental Protection.
Similarity score 0.987 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000013310
Header page from a DEP laboratory document containing identification codes and method parameters for May 2002 records.
Similarity score 0.987 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000037217
Partial record from the Department of Environmental Protection showing water quality parameters including drip rates and pH levels.
Similarity score 0.986 (not a probability)
machine-extracted · confidence unavailable · Check page ↗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