NYC-WTC_000201127

NYC 9/11 Public Portal Document TEM Asbestos (air) Count Sheet Client Name: = NYC BOE Volume (liters): 1805 . \ Lab Group #: 7887 Filter Tvpe/ Filter Area: MCE 385 mm? Lab Sample #: 16 Grid Opening Size: 0.01124 | Client Sample #: 16 Area Examined: 0.04496 mm? GRID BOX: an Magnification: 39 990 | GRID ID: Af ZA. Accelerating Voltage: 100KeV # Grid Openings: 4 Analysis Date: 5/27/02 - Analysis Performed By: LE eo MARK PEYSAKHOV , GO. Structure Struc:ure Type Length ID of Structure) Nor ¥ tan a — f NOU FY BPC TM] >=05p 235 Chrys | Amphibole | Nonasb | AmbignD | {Non@do No Coord | ep is i Element) Er PBS | : iyo AO roe { . Struct => Q.5p > 5:1 Aspect Ratio: 2:1... Grid acceptance: ; ne . , ---\= Positive diffraction patter properties conforming ia <50% undissolved fiter, overlapped or folded . Totals ae laboratory identification criteria observed _. $10% particulate coverage >50% coverage ate : Sot least 20 unfolded or overlapped grid squares <5% FOB) CIT™M |. . V=EDS spectrum conforming to laboratory holes or opaque areas 4 I ; : identification criteria observed - a Chrysotile tiger uy " AMPHIBOLES’ © — 7 F = Single Fiber Amosite Amphibole B= Bundle (<2 fiters <1. fiber diameter apart Crocidolite Ambiguous » C= Cluster (>3 Intersections) . * Anthophyllite Non-Asbestos M = Matrix Tremolite = : Actinolite Non-Identified NSD.= No Structures Detected NYC-WTC_000201142 CITY_21MC100_011275437