NYC-WTC_000193387

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sh Client Name: NYC BOE VoL is: Lab Group #: 8213 Filter Type / 1 M' : 385 mm^ Lab Sample #: 13 GridO] 0.' Y4

Client Sample #: 16 Are:> 0.'' ■96 mm^

GRID BOX: 2G )0 GRID ID: Accelera: 10^ # Grid Openings: 4 Al 6/2 C2

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID- 1 EDS No -I (Nonadb F B C M >=05 u Chrys Amphibc. Amu ' b0 Coord <5m Elements)

Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded orovedapped grid squares <5% i- I J xM >5p V= EDS spectrum conforming to labc ratory holes or opaque areas Chi identification criteria observed AMPHIBOLES i - j ~ Amj F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diamete r apal Crocidolite A mb C =■ Cluster (>3 Intersections) Anthophyllite Non-At Tremolite M = Matrix Non-Ide Actinolite NSD = No Structures Detected

CITY_21MC100_003094575

NYC-WTC_000193387