标题: DSH 1055 [打印本页] 作者: chinatown 时间: 2017-1-7 21:59 标题: DSH 1055 Question , M1 g# H8 R% v' g9 @ tFor the Standard IEC 60730-1 4th Ed. there is required:& R+ O [! C' F/ {6 J# ^' L, P
The solvents used are:1 f2 |; C3 `) F U! D) O/ u" u
– neutral liquid detergent blended from alkyl benzene sulphonate and non-ionic detergents; ; Z1 l( {7 u; C% F– petroleum spirit (aliphatic solvent hexane with a content of aromatics of maximum 0,1 volume %, a 4 \8 r1 z2 a, X9 v. aKauributanol value of 29, initial boiling point of approximately 65 °C and dry point approximately 69 °C, and ( X( w9 e" \/ [- w* x- rspecific gravity of approximately 0,68 g/cm3); and water. ! e9 Y7 w& _( t) T' I$ QFor the standard IEC 60335-1 5th Ed. There is now required: ; O t9 b/ R8 Y/ f: FThe petroleum spirit to be used for the test is aliphatic solvent hexane.% i- J) k- X9 b. p$ O3 x+ O" G
- For the standard IEC 60598-1 7th Ed. There is required: L2 N6 U* T: O: ?. ^NOTE The petroleum spirit used should consist of a solvent hexane with a content of aromatics of ) m! z- t3 e r+ @6 B omaximum 0,1 % by volume, a value of 29 % for kauri-butanol, an initial boiling-point of approximately 65( U0 Y" v* ]5 {
°C, a dry-point of approximately 69 °C and a densit y of approximately 0,68 g/cm3. , F& K n2 n& k, ^% m6 i8 G& ~% m- For the standard IEC 60950-1 2nd Ed. There is required: 2 n" b; {9 u/ wThe petroleum spirit to be used for the test is aliphatic solvent hexane having a maximum aromatics0 l( E' H: M) R/ M5 ^
content of 0,1 % by volume, a kauributenol value of 29, an initial boiling point of approximately 65 °C, a dry ! S5 w9 y5 Y/ ^" I' D; Lpoint of approximately 69 °C and a mass per unit vo lume of approximately 0,7 kg/l. 6 W$ w" r1 ~$ g7 n1 @; @& jAs an alternative, it is permitted to use a reagent grade hexane with a minimum of 85 % as n-hexane.& y0 f1 y4 ` [5 o1 O* k9 B9 \4 d+ W
NOTE The designation “n-hexane” is chemical nomenclature for a "normal" or straight chain hydrocarbon.1 U. D+ d% |) y/ e" w# \/ P \
This petroleum spirit may further be identified as a certified ACS (American Chemical Society) reagent% H" `$ U5 W, Y6 y0 ?( X; l/ ]
grade hexane$ n# |, i0 M, f s& i, L, u# R9 D
(CAS# 110-54-3).$ f3 w4 n0 p' ?) I7 w
The exact chemical solvent formula is difficult to find in the marketplace. 9 n3 `6 u+ u8 ]" K' F' L7 IThe various TCs are kindly requested to consider "harmonizing" the solvent accordingly.: R! g' @# d& a* `# j
Decision1 K6 p; o9 P% h" ]2 N
The petroleum spirit to be used for the test is aliphatic solvent hexane. As an alternative, it is permitted to 3 ?; T, [5 O& R) i" f8 f3 z+ }7 ]use a reagent grade hexane with a minimum of 85% as n-hexane.6 H* J; n5 g$ S- p, m
Note: the designation “n-hexane” is chemical nomenclature for a “normal” or straight chain hydrocarbon.) T) g; g9 k* G6 x3 V: V
This petroleum spirit may further be identified as a certified ACS (American Chemical Society) reagent $ ~1 j/ o" w& y9 [# u- Rgrade hexane (CAS# 110-54-3).6 u. Y3 E7 J0 O3 ] 作者: chinatown 时间: 2017-1-7 22:01
DSH 1055附件