DSH 308 Table 3- Temperature limits

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DSH 308 : p, M' Y1 F. o; g2 m% I

Table 3- Temperature limits 4 w7 ]* l6 o- F/ z3 O5 [0 P# F

9

61010-1(ed.1);am1;am2

Standard:
IEC 61010-
1:1990+A1:1992+A2:1995
# `3 X) _1 d* G6 Z" C; H# N5 dSub clause:
% @2 _" o; @0 H- B* L9
Sheet n. 308
Page 1(1)
Subject:
6 R' u; n: `2 Y( dTable 3 - Temperature limits
Key words:
& A# q/ V& }( p8 a) x( C2 J- Fire point
- Temperature
Decision taken by
ETF3 and confirmed
by CTL at its 38th
! T% C$ H4 M+ |6 h0 t- P5 R+ e  g  ]meeting, in Toronto
Question:
How can the requirements of this clause be used for parts in contact with liquids. Where can
the figures for Fire Point be obtained?
% s1 v, J# J8 p4 I( E8 U/ iDecision and Explanation
This requirement should only be applied where a hazard may arise.
Figures for fire point are available in ANSI/NFPA 497-1997, published by the National Fire
+ d2 p0 m2 \. p+ LProtection Association, Quincy, Massachusetts, USA.
3 k" D5 \: M# z# ^# MTable 2-1 of NFPA 497 identifies flash points, autoignition temperatures
/ P/ g1 f  _7 V; I1 S8 @' h(fire points), lower and upper flammable limits (in %), vapor densities,
6 A1 f' v, L) ?( M0 Cvapor pressures, minimum ignition energies, minimum ignition current ratios,
and maximum experimental safe gaps of approximately 225 common liquids and
& y0 c$ M& w/ ?4 m: vgases.
+ E3 ?4 ]5 x% W( h; d7 t; p
5 a4 I5 r6 O  c2 }) O- B/ w