DSH 308 Table 3- Temperature limits

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DSH 308

Table 3- Temperature limits 4 V4 r& i6 W, d" ~5 _5 Y# R6 r

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61010-1(ed.1);am1;am2 ' G* R1 T& ]7 k

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  ]* t! M9 N  a% sStandard:
- q2 a0 H& y& N" h+ jIEC 61010-
7 w; Y6 q2 M9 `; I! w4 o1:1990+A1:1992+A2:1995
! g- Y; R, B5 Y4 Z: p1 o' K- MSub clause:
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$ `- s, r( K" _$ a9 d( C- cSheet n. 308
2 j' G- S1 S; l. p  y' W8 ?Page 1(1)
: U, B% _7 s4 u% @' SSubject:
) b$ ~5 x2 `" W% wTable 3 - Temperature limits
Key words:
- Fire point
- Temperature
Decision taken by
+ k. n4 `- V) a, H0 Y* [ETF3 and confirmed
; A( l, z5 Z5 xby CTL at its 38th
5 J( M9 B1 m- j3 b/ q% ?meeting, in Toronto
4 |. V" n4 u8 [: b% b4 g7 C$ H; bQuestion:
8 \: s% x! p3 M2 `How can the requirements of this clause be used for parts in contact with liquids. Where can
* e; l0 M4 L, I5 A3 _  K0 xthe figures for Fire Point be obtained?
3 k# A" w  w- X. |/ f2 U6 h; gDecision and Explanation
3 m$ }" w1 I: ^9 V0 J6 w8 GThis 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
Protection Association, Quincy, Massachusetts, USA.
Table 2-1 of NFPA 497 identifies flash points, autoignition temperatures
(fire points), lower and upper flammable limits (in %), vapor densities,
1 r3 E8 `3 A; z  r  S: C) e7 jvapor pressures, minimum ignition energies, minimum ignition current ratios,
and maximum experimental safe gaps of approximately 225 common liquids and
7 T* w- _) A& Q4 l/ agases.



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