HYPODERMIC NEEDLE WITH ATTACHED REPORT TITLED METALLOGRAPHIC STUDY OF HYPODERMIC NEEDLE
Document Type:
Collection:
Document Number (FOIA) /ESDN (CREST):
00190742
Release Decision:
RIPPUB
Original Classification:
U
Document Page Count:
10
Document Creation Date:
January 21, 2025
Document Release Date:
January 15, 1983
Sequence Number:
Case Number:
Publication Date:
November 26, 1961
File:
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Body:
,MEMO
From
Subject 1.117PODERMIC NEEDLE
Answering
Your Memo I
The examination of the samples sUbmj.tted de-
monstrated that the brans cap from the collapsible tdbe�
contained a fragment of a steel hypodermic needle and.
that this fragment was identical in every respect.to the
section of hypodermic needle submitted separately.
. .
Spectrographic comparison showed that the rel-
ative amounts of residual impurities such as Cr, Ni,
Cu, Mo, etc. are the same in the two sections. They were
also found to be identical in outer diameter and structure
as determined metallographically.
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