NYC-WTC_000207617

NYC 9/11 Public Portal Document

TEM Asbes-tos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 8226 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: • 17 Grid Opening Size: 0.01124 Client Sample #: 17 . : Area Examined: 0.04496 mm^ • GRID BOX: I Magnification: . 20,000; GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: -6/23/02

Analysis Performed By: 2 ROMAN PEYSAKHOV

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

Y- -

■ ■ ■

Struct = >0.5p > 5:1 Aspect Ratio Grid acceptance: = Positive diffraction pattern properties conforming to ^"dissolved 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 >5u ■ EDS spectrum conforming to laboratory holes or opaque areas ■identification criteria observed . Chrysotile ' AMPHIBOLES ’! ■ - Amphibole. F = Single Fiber AtpQSite7.- B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite ' . ■ Ambiguous C = Cluster (>3 Intersections) , Anthophyllite' • Non-Asbestos i Tremolite M = Matrix - ' Actinolite. Non-Identified NSD = No Structures Detected

CITY_21MC100_003015501

NYC-WTC_000207617