NYC-WTC_000228533

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet ClientName: NY’C BOE Volume /liters): I I Lab Group #: '407 Filter Type Filter Area: MCE 38? mm- Lab Sample #: Grifl Opening Size: iiVi '24

Client Sample #: 06 Area Examined: 0.0562 mn?

GRID BOX: Magnification: 20,000 GRID IP: Accelerating V oltage: too KeV # Grid Openings: 5 Analysis Date: 4/13,02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID or Structure \ or y ^I'sOnsdb j No F B C M >=05 p >=5m Chrys Amphibole Nonasb Ambig/ND Elements) No Cocird •<8p VST

5'2 -U— /f

^2

Struct =• > 0.5p > 5; I Aspect Ratio Grid aocaplanca: v/s Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory idrmtiffcation criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overtapped grid squares <5% F B C M >5u '/« EOS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES I Amphibole F = Single Fiber i Amosite I B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersecfons) Anthophyllite Non-Asbestos Tremolite M = Matnx Actinolite Non-Idcntified NSD = No Structures Detected

CITY_21MC100_002900893

NYC-WTC_000228533