NYC-WTC_000217634

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sh Client Name: NYC BOE VoL 182 - Lab Group #: 8213 Filter Type / 1 M' ■: 385 mm^ Lab Sample #: 13 Grid Qi 0.' !24 Client Sample #: 16 0.'' 196 mm^

GRID BOX: IS!-.! 2C 70 GRID ID: Accelern! 10: KeV # Grid Openings: 4 Al- 6/2 -02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length 10 c: EDS No >=05 p (Nonadb F B- C M >=5p Chrys Amphibt. Ambi 7 ' No ■ 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 or ovenapped grid squares <5% J M >5p o/= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chi AMPHIBOLES | Ami F = Single Fiber Amosite B = Bundle {<3 fibers <1 fiber diameter apart Crocidolite Amb C = Cluster (>3 Intersections) Anthophyllite Non-At Tremolite M = Matrix Non-Ide Actinolite NSD = No Structures Detected

CITY_21MC100_002877474

NYC-WTC_000217634