NYC-WTC_000193423

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1824 Lab Group #: 8266 Filter Type / Filter Area: MCE 385 mm" Lab Sample #: 7 Grid Opening Size: 0.01124 Client Sample #: 10 Area Examined: 0.04496 mm"

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openinus: 4 Analysis Date: 6/24/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or '/ EDS No (Nonadb F B C M >=05 p >=5iJ Chrys Amphibole Nonasb Ambig/ND Coord <5p Elements) |

4= -J_

I _______ Struct = > 0.5g >5:1 Aspect Ratio Grid acceptance: 7= 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 EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Inte.'sections) Anthophyllite Non-Asbestos Tremolite MMatrix Actinolite - Non-Identified NSD = No Structures Detected

CITY_21MC100_003094644

NYC-WTC_000193423