NYC-WTC_000223708

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 7447 Filter Type / Filter Area: MCE 385 mm- Lab Sample#: 1 Grid Opening Size: 0.01124

Client Sample #: 01 Area Examined: 0.04-196 mtn-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating V^oltage: 100 KeV # Grid Openings: 4 Analysis Date: 4,17; 02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Nor v CDS iNonadb No F B C M >=05 p :>=5(J Chrys Amphibole Nonasb Ambig/NO No Coord <5p cements;

JI - J

Struct = > 0.5n > 5:1 Aspect Ratio Grid aaeptance: v' = Positive diffraction pattern properties conforming to undissolved filter, overlapped or folded Totals laboratory identification criteria observed :10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% i F i B j C I M i Nd EDS spectrum conforming to laborator/ holes or opaque areas identification critena observed Chrysotile I A.MPHiBOLES Amphibole | F = Single Fiber Amosite 5 = Bundle (<3 fibers < 1 fiber diameier apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos T remolite M = Matnx Non-Identified Actinolite NSD - No Structures detected

CITY_21MC100_002919794

NYC-WTC_000223708