Document Qg1zzkXa1mBEGJZRbJd4kwg9v
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dirbctioie for test no. 14-43-41
SUBJECT: Color of Aroclor on N.P.A. Seale
^method^
Comparator
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nArocloM '4i!^5i*'<t0^6O|mm
ing N.PA* colors la the range 1 to 5
_.... _ ___ ....................
; Procedure
___
! Warm the Aroclor is necessary to obtain pouring consistency. .
Till the test cup of the Hellige Pocket Comparator, Model 605, with
Aroclor, insert cup in the comparator, and compare against the color
disc (No 6200-60, Lubricating Oils and Petrolatum) which has NP*A*
-colors from A'to-5 in one-half, steps#. Report color to nearest 1/4. '%
Clean; .the test cup with Jfotosolve with final rinse of benzol*
' AeSTM color numbers"'coincide with National Petroleum Asso-- , elation color number (1915). The relation of the N.P.A. color num bers to other color scales is tabulated below:
NPA Color ... Nos* (1915)
NPA Names
1/4 1/2 ^ 3/4/
1 1-1/2
2 2-1/2
3
4-1/2
mil
Lily white '/
Cream white ^
Extra pale
'
Extra lemon pale
Lemon pale .
Extra orange
Orange pale
Pale .
w
^igit/red
Darkred '
dlaret red
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Union Petro--. ...ASTM leum Color Co* * Nos*
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O H I J K L H h; -o p
ft R
-- --
1*5 2 2*5 3 3*5 4 ,4*5
Lovibond Analysis....
Red 1 Yellow Blue
200 5 510 1180
; -- 0,6 r-
. ". 4 .
1*1 / !' 1*7 1 .-;;V --
0,12
2.4 -
0,60 / 2*5 $
4*6:i
6,9 ; 9*4
14,0! 21*0 35.0, 60,0:. 60*0
8,0 26,0 27.0 32*0 -i 35.0 50.0 .55 56,0 .55 93.0 '/fega feO.O *5% .06*0 .1*80
166*0
64*0 , --
ABO-p 9/25/41
DSW 330697 STLCOPCB4077341
)
Page Ho. 2 Test Ho. 14ri0-41 -- Specific Gravity of Liquid Aroclors
*.jr**9t Caleulation Odft oSppewemifiqo WOrTaITvIl^tyJ
Rxamplei /'Assume readings as' ifoXlOip -&
</%/ =V Westphal i reading `with plummet ift-i
4 *- ** fZ'k'Lsr-'Si&ihrf (.;y^v
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.9992 Report to third decimal place, e.g. 1.504.
HotCB
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.... 1. Since the reading in water is constant, provided there are no errors in weights or Vestphal, its determination at monthly in
tervals should suffice.
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. 2* The waists used with the balance should be Checked monthly
by weighing on an analytical balance*. %--
3. The exact adjustment of the liquid to the test temperature is important. Do not cool too rapidly. Stir frequently enough to maintain a uniform temperature thruout.
. 4* Instead of .adjusting exactly to test temperature, readings may be taken at one or more temperatures near that specified and corrected if the temperature coefficient is known.
Aroelor
1142 1148 1154 1160 1162
TEMPERA.TPRE CQSFFICIMTS (RJ5F: PIAHT B) {
Correction for 1*0.
Range of Application
.0009 .0009 .00095 .0010 .0010
50 - 105*0. 50-100 55 - 105 75-130 85-120
ABG-p 10/2/41
'j --T i* --
Dsw 330698
)
STLCOPCB4077342