NYC-WTC_000199441

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NAT BOE Volume (liters): 1928 Lah Group #: 8760 Filter Type / Filter Area: MCE 385 mm’ Lah Sample #: 1 Grid Opening Size: 0.01124

Client Sample #: Area Examined: 0,04496 mm"

GRID BOX: Magnification: 20,000 GRID ID: £2^ Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 8.'25/02

Analysis Performed By: ROMAN PEYSAKHOV

GO Structure Structure Type Length ID of Structure \ or v EDS ■ - (Nonadb ! No r B C i M AcL I” ■=5m Chrys Amphibole Nonasb Ambig/ND No Coord <5u Elements) | I tc ■ K

I 1-----"

Struct = > 11 5,u > 5,1 Aspect Ratio Grid acceptarce

'1- Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory loentification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% [ F B I C M I >5u \= EDS spectrum conforming to laboratory holes or opaque areas Identification criteria observed Chrysotile AMPHIBOLES . Amphibole F = Single Fioer Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos T remolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_003033974

NYC-WTC_000199441