NYC-WTC_000227848

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1840 Lab Group #: 6685 Filter Type / Filter Area: MCE 385 mm* Lab Sample #: 2 Grid Opening Size: 0.01124

Client Sample #: 02 Area Examined: 0.04496 mm-

GRH).RQX; Magnification: 20,000 GSJTOID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2/15/02

Analysts Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Norv EDS Mo (Nonadb F B C M >«05p >=5p Chrys Amphibole Nonasb Ambig/NO No Coord <5u Elements)

2^ I 1 1

..

Struct »■ > 0.5p > 5; 1 Aspect Ratio Grid acceptance: Positive diffraction pattern properties conforming to <50% undlssotvsd flttar, overlapped or folded Totals laboratory identification criteria observed <10% particulatB coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5p ■/= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile ~ AMPHIBOLES Amphibole F = Single Fiber i Amosite B = Bundle (<3 Abets <1 Aber diameter apart Crocidolite I Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matnx Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_002899376

NYC-WTC_000227848