NYC-WTC_000196690

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1928 Lab Group #: 8759 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 5 Grid Opening Size: 0 01124 Client Sample #: 05 ■ Area Examined: 0 04496 GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 8/25/02

Analysis Performed By: ROMAN PEYSAKHOV

•GO Structure Structure Type Length ID of Stnicture Nory EDS No (Nonadb F B C M '=5|J Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

JW B t:

Stiuct = > 0.5g .> 5.1 Aspect Ratio . Gnd acceptance

Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification critena observed <10% particulate coverage >50% coverage ate least 20 unfolded oroveriapped gnd squares <5% F B C M >5p EDS spectrum conforming to laboratory holes or opaque areas identification cnteria obsen/ed Chrysotile ' a'mphiboles'? Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite , Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSO = No Structures Detected

CITY_21MC100_003042307

NYC-WTC_000196690