NYC-WTC_000217975

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 2016 Lab Group #: 6732 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 13 Grid Opening Size: 0.01124

Client Sample #: 13 Area Examined: 0.04496 mm’

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2,19/02

Analysis Performed By: RP ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Stniclure N or -J EDS I No Nonasb Ambig/r'iD (Nonedb j F B C M >=05 M >=5p Chrys Amphibole Etements) i No Coord <5p

v

Struct = > 0.5(1 > 5:1 Aspect Ratio Grid acceptance: A- Positive diffraction pattern properties conforming to <50% undissolved Oller, overlapped or folded Totals <10% particulate coverage >50% coverage ate laboratoiy identification criteria observed least 20 unfolded oroveitapped grid squares <5% F i B j C j M j >5m EDS specbum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile I ! AMPHIBOLES Amphibole F = Single Fiber Amosite E = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos I ! T remolite M = Matrix Non-Idenhfied T Actinolite rMSD = No Structures Detected

CITY_21MC100_002878166

NYC-WTC_000217975