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DSH 308/ R2 J) t9 C$ @" Q7 M- r9 N$ Z
| Table 3- Temperature limits/ p% F* U: E, m2 u0 k3 [
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7 X* c2 r3 F( l H) W | 61010-1(ed.1);am1;am21 D6 L( {6 g5 ]: q: A0 A5 T
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% K; l9 w5 u! U. C! `4 p# M6 N8 PStandard:- C: ~8 G1 p8 f8 e& `
IEC 61010-! _9 M) q; v B
1:1990+A1:1992+A2:1995. s( X9 [$ X4 P6 C8 u% H5 q
Sub clause:+ p. F* d+ `9 s0 L$ R& {* l
96 s; H/ e# F0 z- F% Y
Sheet n. 308
9 A9 _# _5 e4 u- m0 JPage 1(1)" Z0 `1 k q( ?. j
Subject:" C0 ?9 G0 \ D* m. M
Table 3 - Temperature limits
+ a# F1 f3 r6 F. I, D: Y6 AKey words:* A$ n' n/ j/ d; l1 c% [
- Fire point
$ V1 g8 P) Y% q9 n" v- Temperature7 O0 D4 X! P- P. |1 Z' ^- z% K
Decision taken by
. Q/ j6 p$ v$ a' VETF3 and confirmed
j! V& [7 w- \$ a4 g% b3 L+ K- Nby CTL at its 38th( w+ R0 d! H' t8 A( y
meeting, in Toronto/ P# t) G) D9 y8 w! \; ^3 F" R
Question:& Y: U* h$ h+ a; m% a# ^, Q6 x
How can the requirements of this clause be used for parts in contact with liquids. Where can' S. O( u8 D- i6 x; N$ z; J
the figures for Fire Point be obtained?; D- e8 W. _+ O" c( Q: S
Decision and Explanation2 K: |+ W1 H% U" D0 g+ D
This requirement should only be applied where a hazard may arise.4 r* [% M% E3 u% |0 n. u/ E
Figures for fire point are available in ANSI/NFPA 497-1997, published by the National Fire7 I$ |+ M0 x/ _/ U6 s4 ^
Protection Association, Quincy, Massachusetts, USA.
a O7 Z, [" ~' A" T1 P5 }Table 2-1 of NFPA 497 identifies flash points, autoignition temperatures
% h& p2 n6 Z1 Y8 V" H8 {(fire points), lower and upper flammable limits (in %), vapor densities,3 l" m: t4 m, P1 `6 C$ b" R9 E8 i' c0 |
vapor pressures, minimum ignition energies, minimum ignition current ratios,
* t1 }# `- u6 e2 T6 b. n5 n) U& ~and maximum experimental safe gaps of approximately 225 common liquids and
6 I, K: D- ?7 zgases.
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