NYC-WTC_000210552

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: Airtek Volume (liters): 1300 Lab Group #: 6149 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 14 Grid Opening Size: 0.01124 Client Sample #: 024 Area Examined: 0.06/44 mm^ GRID BOX: Magnification: 20,000 GRIDED: Accelerating Voltage: 100 KeV Grid Openings: 6 Analysis Date: 12/19/01

Analysis Performed By: ROMAN PEYSAKHOV

C-Q. Structure Structure type Length ID of Structure N or 4 EDS ! (Nonadb i No F B C M >=05 u >=5(j Chrys Amphibote Nonasb Ambig/ND No Coorc <5u Elements)

"’"Si t/ A “I

IW (I

1 Struct = > O.P.u > 5:1 Aspect Ratio Grid acceptance; >1= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals latioratory identification criteria observed <10% particulate 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 obsetvea Chrysotile AMPHIBOLES I 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_000021388

NYC-WTC_000210552