NYC-WTC_000210567

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: Airtek Volume (liters): 1360 Lab Group #: 6152 Filter Type / Filter Area: MCE 385 mm- Lab Sample 15 Grid Opening Size: 0.01124 Client Sample #: 022 Area Examined: 0.06744 trim- GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 6 Analysis Date: 12/20/01

Analysis Performed By; MARK PEYSAKHOV

GO Structure Structure Type Length ID of Structure N or 'f EDS No (Nonadb F B C M ■=05 J Chrys Amphibole Nonasb AmbigyND Elements) No Coord <5p 4.-

I

Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance: >1= Positive diffraction pattern properties conforming to *=50% undissolved filter, overlapped or folded Totals laboratory identification crnena observed <10% particulate coverage >50% coverage ate least 20 unfolded or overiapped grid squares <5% F B C M >5p t/= EDS spectrum conforming to laboratory holes or opaque areas identification cnteria observed Chrysotile amphiboles' 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 NSD = No Structures Detected

CITY_DEP_WORBY_CANNATA_SUBP_000021404

NYC-WTC_000210567