| Standard No. |
Title |
Price(USD) |
Delivery |
Status |
Add to Cart |
| DL 420-1991 |
Method of test for refractive index and specific dispersion of electrically insulating liquid |
|
via email in 1~3 business day |
,, |
|
| DL 421-1991 |
Determination of Volume Resistivity of Insulating Oils |
$60.00 |
via email in 1~3 business day |
superseded,2009-12-1, |
|
| DL 422.1-1991 |
Test method for industrial synthetic hydrochloric acid of thermal power plant |
$60.00 |
via email in 1~3 business day |
abolished2015-12-01,2015-12-1,1992-4-1 |
|
| DL 422.2-1991 |
Determination for industrial hydrochloric acid content - Volumetric method |
$60.00 |
via email in 1~3 business day |
abolished2015-12-01,2015-12-1,1992-4-1 |
|
| DL 422.3-1991 |
Determination for iron content in industrial hydrochloric acid - Phenanthroline spectrophotometric method |
$60.00 |
via email in 1~3 business day |
abolished2015-12-01,2015-12-1,1992-4-1 |
|
| DL 422.4-1991 |
Determination for sulfate content in industrial hydrochloric acid - Barium chromate spectrophotometric method |
$90.00 |
via email in 1~3 business day |
abolished2015-12-01,2015-12-1,1992-4-1 |
|
| DL 423-1991 |
Determination of gas content in insulating oil Differential-vacuum-pressure method |
|
via email in 1~3 business day |
,, |
|
| DL 424-1991 |
Test method for industrial sulphuric acid of thermal power plant |
$120.00 |
via email in 1~3 business day |
abolished2017-05-01,2017-5-1,1992-4-1 |
|
| DL 425.1-1991 |
Test method for industrial sodium hydroxide |
$60.00 |
via email in 1~3 business day |
abolished2015-12-01,2015-12-1,1992-4-1 |
|
| DL 425.2-1991 |
Determination for sodium hydroxide and sodium carbonate content in industrial sodium hydroxide - Titrimetry |
$60.00 |
via email in 1~3 business day |
abolished2015-12-01,2015-12-1,1992-4-1 |
|
| DL 425.3-1991 |
Determination for sodium chloride content in industrial sodium hydroxide - Mercurimetry |
$60.00 |
via email in 1~3 business day |
abolished2015-12-01,2015-12-1,1992-4-2 |
|
| DL 425.4-1991 |
Measurement for iron in industrial sodium hydroxide - Phenanthroline spectrophotometric method |
$60.00 |
via email in 1~3 business day |
abolished2015-12-01,2015-12-1,1992-4-1 |
|
| DL 425.5-1991 |
Determination for sodium hydroxide and sodium carbonate content in industrial sodium hydroxide - Volumetric method |
$60.00 |
via email in 1~3 business day |
abolished2015-12-01,2015-12-1,1992-4-1 |
|
| DL 425.6-1991 |
Determination for sodium chloride content in industrial sodium hydroxide - Silver nitrate volumetric method |
$90.00 |
via email in 1~3 business day |
abolished2015-12-01,2015-12-1,1992-4-1 |
|
| DL 426-1991 |
SZH digital frequency relay inspection procedures |
|
via email in 1~3 business day |
,, |
|
| DL 427-1991 |
Technical conditions for ordering indoor generator circuit breakers |
$120.00 |
via email in 1~3 business day |
abolished2015-01-14 ,,1992-4-1 |
|
| DL 428-1991 |
Technical Rules for Power System Automatic Under-frequency Load Shedding |
$190.00 |
via email in 1~3 business day |
superseded,2011-5-1, |
|
| DL 429.1-1991 |
Diapha nometry |
|
via email in 1~3 business day |
,, |
|
| DL 429.2-1991 |
Oil Test Method of Power System—Color Measurement |
$30.00 |
via email in 1~3 business day |
superseded,2016-6-1, |
|
| DL 429.3-1991 |
Water-soluble acid measurement method (acidometer method) |
|
via email in 1~3 business day |
,, |
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