NYC-WTC_000218048

NYC 9/11 Public Portal Document

TEM Asbestos Uiri Lount Sheer Client Name: NYC BOE lime ■’ Lab 'Group #: 6,^29 Filter T .pv ,• Fiiter Area .1

Lab Sample #: o Grid Opening Size Area Examined 0.(1449(5 Client Sample #: Ob GRID BOX: Magnification 20.000 ( GRID ID: Accelerating Voltage NYi KeV' i # Grid Openings: 4 Analysis Date 2'26/02

Analysis Performed By: ROMAN PEYSAKHOV

GO, Structure : Structure Type Length iD of jtruc!U!6 Ci

No mraat fTb C M >=05 p :>=5p Chrys Amphibole ! NonasP> : Amoig/Nu E Yemenis i No Coord <5p

/C

t

Struct =>0.5p >5 1 Aspect Ratio Grid acceptance: Positive diffraction pattern properties conforming to <50% undissolved filler, overlapped or folded Totals <10% particulate coverage >50% coverage ate laboratory identification criteria observed least 20 unfolded or overlapped gnd squares <5% F ' B I C ; M I Yp '/= EDS spectrum conforming tc laboratory holes or opaque areas identification criteria observed Chrysotile | I i AMPHIBOLES Amphibole ■--------- T

F = Single Fiber Amosite Crocidolite Ambiguous B = Bundle (<3 fibers <1 fiber diameter apart C = Cluster (>3 intersections) Anthophyllite Non-Asbestos i Tremolite M = Matrix Actinolite I Non-ldentified i

CITY_2IMCl00_000465789 NYC-WTC_000218048