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[General] DSH 1055

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发表于 2017-1-7 21:59 | 显示全部楼层 |阅读模式
广东安规检测
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Question
' f) g; p( G, ?* @* B. P. XFor the Standard IEC 60730-1 4th Ed. there is required:0 ?( J  I0 S( n: a- W
The solvents used are:* U3 V' [  K! T- _+ K
– neutral liquid detergent blended from alkyl benzene sulphonate and non-ionic detergents;! ]/ F: p* ~8 W" P0 Z  Z" m& `
– petroleum spirit (aliphatic solvent hexane with a content of aromatics of maximum 0,1 volume %, a+ s: V6 r5 p) l
Kauributanol value of 29, initial boiling point of approximately 65 °C and dry point approximately 69 °C, and/ ?* D, P9 x0 R, I8 N+ C/ r
specific gravity of approximately 0,68 g/cm3); and water.
+ t. v4 K, G( C4 Q  E* `/ VFor the standard IEC 60335-1 5th Ed. There is now required:
8 \  u' \: h( n8 z  Q4 i) MThe petroleum spirit to be used for the test is aliphatic solvent hexane.9 F. l$ P( U1 e* R
- For the standard IEC 60598-1 7th Ed. There is required:
; _' N6 v1 f6 Q/ z0 v% A! `" ?3 jNOTE The petroleum spirit used should consist of a solvent hexane with a content of aromatics of2 V! y1 z! c1 ^* S
maximum 0,1 % by volume, a value of 29 % for kauri-butanol, an initial boiling-point of approximately 65, q9 P9 c: C  y$ Q2 F* e* p: Y
°C, a dry-point of approximately 69 °C and a densit y of approximately 0,68 g/cm3.
& d' i3 W7 `" O5 l- For the standard IEC 60950-1 2nd Ed. There is required:
5 U: o( d( V9 C' i3 kThe petroleum spirit to be used for the test is aliphatic solvent hexane having a maximum aromatics
1 b! j0 L) W# Q) }content of 0,1 % by volume, a kauributenol value of 29, an initial boiling point of approximately 65 °C, a dry- L4 s% s2 C: j: R
point of approximately 69 °C and a mass per unit vo lume of approximately 0,7 kg/l.
$ r  k! }2 U5 i5 J8 D9 yAs an alternative, it is permitted to use a reagent grade hexane with a minimum of 85 % as n-hexane.: s* A% }8 K/ j# J4 ^" y
NOTE The designation “n-hexane” is chemical nomenclature for a "normal" or straight chain hydrocarbon.
+ f# L( Y7 B8 H' w- j& EThis petroleum spirit may further be identified as a certified ACS (American Chemical Society) reagent
6 C  u5 Q8 h, x+ xgrade hexane
0 D6 v  x* F, N" w4 `(CAS# 110-54-3).
2 _2 D4 H5 n' }7 GThe exact chemical solvent formula is difficult to find in the marketplace.
, a4 v# l$ r7 ?+ ^7 ~4 WThe various TCs are kindly requested to consider "harmonizing" the solvent accordingly.
8 L. ]0 {5 N" k* H. M- ?/ ADecision  q- S( w9 I8 D( H
The petroleum spirit to be used for the test is aliphatic solvent hexane. As an alternative, it is permitted to% H! G& H6 ]* j5 P, B& W
use a reagent grade hexane with a minimum of 85% as n-hexane.
! U% q) X0 H+ \9 WNote: the designation “n-hexane” is chemical nomenclature for a “normal” or straight chain hydrocarbon.( ^- z, D% M, G5 c! B/ @
This petroleum spirit may further be identified as a certified ACS (American Chemical Society) reagent* P6 h& i: u, I7 e% Z$ }1 v
grade hexane (CAS# 110-54-3).6 S- a3 G' f6 d! z
 楼主| 发表于 2017-1-7 22:01 | 显示全部楼层
DSH 1055附件

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