NYC-WTC_000200897

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volnme filters): 1840 Lab Group #: 7731 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 7 Grid Opening Size: 0.01124

Client Sample #: 07 Area Examined: 0.04496

GRID BOX: Magnification: , 20,000 GRID ID: # Grid Openings: 4 Wr Accelerating Voltage: Analysis Date: 100 KeV 5/13/02

Analysis Performed By: ROMAN PEYSAKHOV

GO- Structure I Structure Type ■■ Length ID of .Structure Not N ■ EDS - No >=05 fj T Amphibole Nonasb : Ambig/ND (Nonadb F ' B C M Chrys Elements) No ' Coord <5p i .1

/ L

Struct * > 0'.5n >5:1 Aspect Ratio Grid acceptance: • If 4= Positive diffraction pattern properties conforming to) <50% undissolvedtiter, overlapped or folded Totals laooratory identification criteria observed <10% particulate coverage >50% cove-age ate least 20 unfolded or overlapped grid squares <5% F |. B C M >Ep 7= EDS spectrum conforming to iscorarcy holes or opaque areas Identificabor criteria observed Chrysotile AMPHIBOLES i Amphibole F = Single Fiber . r Amosite B = Bundle (<3 liters <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 iniersections) . Anthophyllite Non-Asbestos Tremolite M - Matrix Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_011275228

NYC-WTC_000200903