NYC-WTC_000229004

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: ..NYC BOE Volume (liters): 1816 Lab Group 7807 Filter Type / Filter Area: MCE 385 mm’ Lab Sample #: 15 Grid Opening Siiee: 0.01124 Client Sample #; 17 Area Examined; 0.04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV a Grid Openings: 4 Analysis Date: 5/20/02

Analysis Performed By) ROMAN PEYSAK.HOV

GO. Structure Structure Type LengUi fOofStruciure N or N eSs , (NonaSb j Mo F B C u >=05 M Chrys Amohibofe Nonasb Ambig/NO Elements] ] No Coord <5m 7 ------- 1

i 1

Struct = >0.5n >5:i Aspect Ratio Gtid acceptance: Totals laboiatoiy jdentificaticn cfitena observed feast 20 unfolded or overiapped grid squares <5% F B C M >5u EOS spectrum conforming to laboratory holes or opaque areas identification criteria nbserved Chrysotile AMPHIBOLES Amphibole F = Singie Fiber Amosite B = Buncle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolile M = Madix Actinolite Non-Identified NSD - No Structures Detected

CITY_21MC100_002902032

NYC-WTC_000229004