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( H) e$ Z+ b% m
| Table 3- Temperature limits
F% J+ L3 [" w5 M/ {- U- l | 91 e+ L( U/ X7 m' Q6 h5 F
| 61010-1(ed.1);am1;am21 K6 `+ e* v% _0 q
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3 M8 Q/ E+ p; ~% q; ^0 X3 O
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Standard:
/ n" z# q, n# U4 F2 KIEC 61010-
3 ^9 r$ t$ ], |9 N1:1990+A1:1992+A2:19953 S" C/ }) a3 N; |' i+ b
Sub clause:
( L! V% S% {9 U7 c$ [ l9
2 c$ u6 E' z: o: H/ V8 S" JSheet n. 308
2 H# _7 A/ D! h4 T6 L5 {9 MPage 1(1)
; {' z: z$ H: hSubject:
8 |/ f3 S+ k$ vTable 3 - Temperature limits
+ e5 @( ^6 `% C- ~Key words:
" `* j/ t4 T/ w0 _4 _7 q6 t- Fire point
# E+ a1 ^4 H: A* w- Temperature
; W# t, L7 ~! T1 u: ]' g4 WDecision taken by, [% l, @/ t1 J0 b' [
ETF3 and confirmed
M4 X9 N0 L: ?' \, X; o" gby CTL at its 38th
3 F3 G& v, d6 _) }: y8 U. v: K5 Dmeeting, in Toronto/ Y' x# E, A5 v6 q$ n5 }3 E/ W
Question:
/ X6 r! L. U% p% w0 T9 x# k# DHow can the requirements of this clause be used for parts in contact with liquids. Where can4 Y4 m- u# j( C
the figures for Fire Point be obtained?
) e/ x* U6 s2 e5 V7 {Decision and Explanation
( Q% R. t7 Q2 a% F6 j. zThis requirement should only be applied where a hazard may arise./ b# @$ E- l. V# y+ ^
Figures for fire point are available in ANSI/NFPA 497-1997, published by the National Fire0 A- U* @6 s" R; O+ k( a
Protection Association, Quincy, Massachusetts, USA.8 D+ P9 J' t, q& X/ W
Table 2-1 of NFPA 497 identifies flash points, autoignition temperatures1 J, c) d4 u. L7 D1 C
(fire points), lower and upper flammable limits (in %), vapor densities,- x; _4 _+ a4 e$ ]
vapor pressures, minimum ignition energies, minimum ignition current ratios,9 K) f$ M( {5 V, V
and maximum experimental safe gaps of approximately 225 common liquids and
6 \* q1 a& t; ^gases.
3 ~' j6 {' V0 z' W$ T" M- |
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