NYC-WTC_000181709
Documentation of asbestos fiber analysis by TEM performed on samples from P.S. 234M received on April 6, 2002.
13 shared non-person entities · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗Document / 23 pages
Asbestos air analysis results, H.S., March 2002
Machine-extracted title · confidence 95%Chain of custody and laboratory report for transmission electron microscopy asbestos fiber analysis at a high school received March 31, 2002.
NYC-WTC_000179496–000179518Page image
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NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1928 Lab Group #: 7280 Filter Type / Filter Area: MCE 385 Lab Sample #: 12 Grid Opening Size: 0.01124 Client Sample #: 15 Area Examined: 0.04496 mm^
GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/31/02
Analysis Performed By: MARK PEYSAKHOV
GO, Structure Structure Type Length ID of Structure Norv EDS (Nonadb No F B C M >=05 p >=5p Ctirys Amphibole Nonasb Ambig/ND ‘ No Coord <5p Elements)
T i I Struct = > O.Sp > 5:1 Aspect Ratio Grid acceptance: '/= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5m '/= EDS spectrum conforming to laboratory holes or opaque areas identification criteria obsen/ed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections! Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003459793 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000179510
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NYC-WTC_000179510Source: NYC Law Department, mirrored locally
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Chain of custody and laboratory report for transmission electron microscopy asbestos fiber analysis at a high school received April 5, 2002.
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Documentation of asbestos fiber analysis by TEM performed on samples from P.S. 234M received on May 15, 2002.
14 shared non-person entities · similarity 0.996
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000181750
Documentation of asbestos fiber analysis by TEM performed on samples from P.S. 234M received on May 21, 2002.
14 shared non-person entities · similarity 0.996
machine-extracted · confidence unavailable · Check page ↗15 shared non-person entities · 1 shared topics · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗13 shared non-person entities · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗13 shared non-person entities · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗13 shared non-person entities · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗13 shared non-person entities · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗13 shared non-person entities · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗Filed elsewhere
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