NYC Law Department release
Independent mirror · updated as the City releases more · v1.2.6
← Document results/DEP Box 50/99 CHURCH STREET Block: 123 Lot: 10 BIN: 1001396 26/42 PARK PL, 23-41 BARCLAY ST
Document / 309 pages

Asbestos air sample TEM analysis report for 99 Church Street,

Machine-extracted title · confidence 95%

Laboratory report from ATC Associates providing transmission electron microscopy results for air samples collected at 99 Church Street.

NYC-WTC_000124304–000124612

Folder label: “99 CHURCH STREET Block: 123 Lot: 10 BIN: 1001396 26/42 PARK PL, 23-41 BARCLAY ST

Page image
Scanned page image, NYC-WTC_000124331
OCR text

OCR status: ok · source: pdftotext

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: ATC Volume (liters: 1300 Lab Group #: 6804 Filter Type / Filter Area: MCE 385 mm= Lab Sample #: 4 Grid Opening Size: 0.01124 Client Sample #: 4 Area Examined: 0.06744 mm'

GRID BOX: •.~ Magnification: 20.000 GRID ID: c,4/') Accelerating Voltage: 100 KeV # Grid Openings: 6 Analysis Date: 2/24/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or EDS No F B C M (Nonadb No Coord >05i >=5p Chrys Amphibole Nonasb Anrbig/ND <5u Elements)

/0

Struct => 0.5i. > 5:1 Aspect Ratio Grid acceptance: 1= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10°' particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5t I- EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Arnosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthopnyllite Non-Asbestos M = Matrix Tremolite Actinolite Non-Identified NSD = No Structures Detected

NYC-WTC 000124331

OCR can misread numbers and units. Confirm readings against the page image before using them.

NYC-WTC_000124331Source: NYC Law Department, mirrored locally

Related records

Browse subjects →

Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.

Same-box records

Filed elsewhere

More like this page

Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.

Page similarity is temporarily unavailable or this page has no indexed vector.

Buildings in this record

Machine-extracted building matches; verify each source. Buildings, never households.

Others also read

Readers open these alongside this record — through an Ask answer, the same folder, or indexed similarity. Not a claim they are about the same event.

Compare copies and versions →