DSH 1055

chinatown · 发表于 2017-1-7 21:59

Question
For the Standard IEC 60730-1 4th Ed. there is required:
The solvents used are:
– neutral liquid detergent blended from alkyl benzene sulphonate and non-ionic detergents;
– petroleum spirit (aliphatic solvent hexane with a content of aromatics of maximum 0,1 volume %, a
Kauributanol value of 29, initial boiling point of approximately 65 °C and dry point approximately 69 °C, and
specific gravity of approximately 0,68 g/cm3); and water.
For the standard IEC 60335-1 5th Ed. There is now required:
The petroleum spirit to be used for the test is aliphatic solvent hexane.
- For the standard IEC 60598-1 7th Ed. There is required:
NOTE The petroleum spirit used should consist of a solvent hexane with a content of aromatics of
maximum 0,1 % by volume, a value of 29 % for kauri-butanol, an initial boiling-point of approximately 65
°C, a dry-point of approximately 69 °C and a densit y of approximately 0,68 g/cm3.
- For the standard IEC 60950-1 2nd Ed. There is required:
The petroleum spirit to be used for the test is aliphatic solvent hexane having a maximum aromatics
content of 0,1 % by volume, a kauributenol value of 29, an initial boiling point of approximately 65 °C, a dry
point of approximately 69 °C and a mass per unit vo lume of approximately 0,7 kg/l.
As an alternative, it is permitted to use a reagent grade hexane with a minimum of 85 % as n-hexane.
NOTE The designation “n-hexane” is chemical nomenclature for a "normal" or straight chain hydrocarbon.
This petroleum spirit may further be identified as a certified ACS (American Chemical Society) reagent
grade hexane
(CAS# 110-54-3).
The exact chemical solvent formula is difficult to find in the marketplace.
The various TCs are kindly requested to consider "harmonizing" the solvent accordingly.
Decision
The petroleum spirit to be used for the test is aliphatic solvent hexane. As an alternative, it is permitted to
use a reagent grade hexane with a minimum of 85% as n-hexane.
Note: the designation “n-hexane” is chemical nomenclature for a “normal” or straight chain hydrocarbon.
This petroleum spirit may further be identified as a certified ACS (American Chemical Society) reagent
grade hexane (CAS# 110-54-3).

chinatown · 发表于 2017-1-7 22:01

DSH 1055附件

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