| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| DL 421-1991 | English | RFQ |
ASK
|
Days<=3
|
Method for determining volume resistivity of insulating oil
|
DL 421-1991
| Obsolete |
DL 421-1991
|