NYC-WTC_000228536

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BCE Volume (liters): <928 Lab Group 7412 Filter Type / Filter Area: MCE ; Lab Sample #: 6 Grid Opening Size: J.01124

Client Sample #: 06 Area Examined: 0.04456 mm’

GRID BOX: Magnification: 20.001} GRID n): Accelerating Voltage: 100 KeV t Grid Openings; 4 Analysis Date: 4; 14. 02

Analysis Performed By: MARK PEYSaKHOV

GO. Structure Structure Type Length iD oi Strucrure N or < EOS iNonado No F B C M >=05 u :>-5p Chrys Amphibole Nonasb AmbigyND No Coord <5m Elements) i -------------- j

I

Struct = > 0.5(1 _> 5:1 Aspect Ratio Grid acceptance: '/= Positive diffraction pattern properties conforming to <S0% undlssolved filter, overlapped or folded Totals laboratory idantification criteria observed <10% particulate coverage >50% coverage ate

9= EOS spectrum conforming to laboratory least 20 unfolded or overlapped grid squares <5% holes or opaque areas F : B c M >5p identification criteria observed Chrysotile i AMPHIBOLES Amphibole F = Single F ber Amosite 8 = Bunate (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster |>3 Intersections) Anthophyllite Non-Asbestos ) Tremolite M = Matrix Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_002900912

NYC-WTC_000228536