NYC-WTC_000202534

NYC 9/11 Public Portal Document

TEM Asbestos (airV Count Sheet Client Name: NYG BOE Volume (liters): 1920 . 7 7 Lab Group #: 8759-' I Filter Type / Filter Area: MCE TlSS rnni^ Lab Sample #: 1 7/ Grid Opening Size: 0;Q1124 Client Sample #: •01 ■•17 ' Area Examined: 0.04496/ mm- GRID BOX: MaHnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 8/25/02

Analysis Performed Bv: 7 ROMAN PEYSAKHOV

- GO, ■• Structure Structure Type Length ID of Structure _N or V EOS . 7 . (Nonadb •) - Mo 7 F B M >=95 p >=5u Chrys Amptiiboie Nonasb AirbigW No Coord <5u Elements)

AW' J i

1

Struct = > 0.5p-> 5:1 Aspect Ratio 7 f Grid acceptance: , 7= Positive diffraction pattern properties conforming to ■'50% undissolved filter, overiapped orfolded Totals ■ ................... laboratory .................... ■■ criteria identification observed ' <10% particulate coverage >50% coverage ate

>/= EDS speclrum conforrriing to laboratory least 20 unfolded ot overlapped grid squares <5% holes or opaque areas '1 F B e M >5U- identification criteria observed Chrysotile ' AMPHIBOLES Amphibole F = SingleMber ; Amosite I B = 3undle(<3tibers<1fiberdiameterapart- Crocidolite Ambiguous G = Cluster (>3 Intersections) Anthophyllite Non-Asbestos = Matrix 77 ; Tremolite / Actinolite Non-Identified NSD = No Structures Detected 7

-.-r.v =-

CITY_21MC100_003273171

NYC-WTC_000202534