NYC-WTC_000214862

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sh it Client Name: NYC BOE VoLv JI .uYH 1928 Lab Group #: 8225 Filter Type /! ter A MCE 385 mm* Lab Sample #: 11 Grid O; .ling t ize: 0.01124 Client Sample #: 11 AtRE Tami I’ll: 0.04496 mm’ GRID BOX: M :i u lien lion: 20,000 GRID ID: Accelerati ' Vo' I'le: 100 KeV # Grid Openings: 4 Al : _si^ .Ue: 6/23/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length IDc' cture NorV EDS No >=05 p :>=5p Amphibc.' (Nonadb F B C M Chrys NC Ambig/ND No Coord <5p Elements)

1 tf—

Z-—

Struct = > 0.5g >5:1 Aspect Ratio Grid acceptance: '/ = Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded ntals laboratory identificatiori criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% B C M >5p 'J= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed c. otilc AMPHIBOLES A ■Ilie F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart All. Crocidolite i C = Cluster (>3 Intersections) Anthophyllite Non-As -stos M = Matrix Tremolite Actinolite Non-!(';. .'.Tied NSD = No Structures Detected

■CITY_21MC1OO_O02871038

NYC-WTC_000214862