NYC-WTC_000228568

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1864 Lab Group #: 7460 Filter Type / Filter Area: .MCE 385 mm- Lab Sample #: 17 Grid Opening Size: 0.01124

Client Siiipple #: 19 Area Examined: 0.04496 nmi-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: loO KeV # Grid Openings: 4 Analysis Date: 4 18 02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Struclure N or No •AcnaaD F B C M ’=05 p Chrys Amphiboie Nonasb ■ Amdig«\D z-prrgf’ts'i No Coord <5m x-Tjr

Struct = > 0.5n >5:1 Aspect Ratio Grid acceptance: 8= Positive diffraction pattern properties conforming to <50% undissolved fitter, overlapped or folded Totals latxjratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B 1 C ! M 8= EDS speYrum conforming to laboratory holes or opaque areas identirication criteria observed Chrysotile AMPHIBOLES Amphibole ■ F = Single Fiber Amosite 3 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguou.s C = Cluster {>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified NSO = No Stuctures Detected

CITY_21MC100_002901019

NYC-WTC_000228568