.. -
??-N-105B
1~. ~ 4
August 23. 1977
mm m 2.25x3or
AkmomWf3
Octnbar 4, 1974
~ ~ TCI~NAL SPEC2PIUTION
..
WL5, B-, =AP- Am SP22C3LS:
mu, cur mm -KHT
‘11’iisint-_-imamendment was developed by U.S. by ~ent Resaarch and
Oavelopment Command, AT1’N:
DRDAR-TST, Sock Island, IL 61201, based Upen
currently available technical information.
It in rec~ended that ~ader.al
agencies use it in procu==mnt and fOWard recwunendations for changes ~
the preparing activity at the address shown above.
The General Services
amendment as a valid
MministratiOn has authorized the uae of this interim
exception to !%fer~~ specification ?F-N-105B.
Page 3
Paragraph 2.2: Md the fC.llWin9 AS~ standa~s 1
“x72?I A641 -
zinc-coated (Galvanized) Carbon Steel Wira.
ASTH B487 - measurement of Hetal and OrioleCoating
‘I%icknesms by
Microscopical Examination
of a Croaa Section
ASTM 8499 - Measurement of Coating Thicknesses by the Hagnetk
kfethodz
Nonmagnetic CO.ltingson FIagneticBasis HOtalIi-
Page s
Paragraphs 3.2.1, 3.2.1.1, 3.2.1.2, and 3.2.1.31
Oclete in their entirety
and substitute the following:
‘3.2.1 Zinc coatinq.
● . l!anddriven staples or nails required to be zinc coated shall
be c’utand formed from hot dip galvanized steel wire, alectmg.alvanized
steel wire, mechanically depc.sited
zinc coated ●teal wire, or dnc flakd
chrcmr.atedispersion coated steel wire or cut frc= uncoated (bright) staol
wira and shell ha hot dip galvanized, elrctiodemsited zinc Cdatad, -ch-
anlcally deposited zinc coa;ed or zinc fl.ake/chrc=te dispersion cbatad
●fter forming.
b.
power or -chanically driven
staplea raquirad to be Wtc
coated
●hall ba cut and formed Cran hut dip galvanized, asbostoc wipad
steel wire, electrogalvanized steel wire, mechanically depomited stic
coated steel wire or zinc flakeichranate dispersion coated ●teai wira.
rsc 531s
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