| Standard No. |
Title |
Price(USD) |
Delivery |
Status |
Add to Cart |
| DB31/T 25-1999 |
|
|
via email in business day |
superseded,, |
|
| DB31/T 25-2020 |
Energy saving monitoring and economical operation of heat-treatmentelectric heating equipment |
$165.00 |
via email in 1~3 business day |
valid,,2020-5-1 |
|
| DB31/T 251-2000 |
|
|
via email in business day |
abolished2018-03-16 ,, |
|
| DB31/T 254.3-2000 |
|
|
via email in business day |
abolished2018-03-16 ,, |
|
| DB31/T 255-2003 |
|
|
via email in business day |
superseded,2020-11-1,2003-5-1 |
|
| DB31/T 255-2020 |
Technical requirement for energy-efficient operation and management of centralair-conditioning systems |
$315.00 |
via email in 1~5 business day |
valid,,2020-11-1 |
|
| DB31/T 256.1-2001 |
|
|
via email in business day |
superseded,, |
|
| DB31/T 256.1-2010 |
|
|
via email in business day |
abolished2018-03-16 ,, |
|
| DB31/T 256.2-2001 |
|
|
via email in business day |
superseded,, |
|
| DB31/T 256.2-2010 |
|
|
via email in business day |
abolished2018-03-16 ,, |
|
| DB31/T 256.3-2001 |
|
|
via email in business day |
abolished2018-03-16 ,, |
|
| DB31/T 260-2001 |
|
|
via email in business day |
abolished2024-12-10 ,,2001-9-1 |
|
| DB31/T 261-2001 |
Code for setting of commercial classification |
$120.00 |
via email in 1~3 business day |
abolished2024-12-10 ,,2001-9-1 |
|
| DB31/T 267-2015 |
|
|
via email in business day |
valid,,2016-1-1 |
|
| DB31/T 271-2002 |
|
$360.00 |
via email in 1~5 business day |
valid,,2002-3-1 |
|
| DB31/T 272-2002 |
general technical specification for security testing and evaluation of computer information system |
$225.00 |
via email in 1~3 business day |
superseded,2008-7-1,2002-6-15 |
|
| DB31/T 272-2008 |
General Technical Specification for Security Testing and Evaluation of Computer Information System |
|
via email in business day |
abolished2019-12-27 ,,2008-7-1 |
|
| DB31/T 273-2002 |
|
|
via email in business day |
abolished2018-03-16 ,, |
|
| DB31/T 274-2002 |
|
|
via email in business day |
abolished2018-03-16 ,, |
|
| DB31/T 278-2002 |
|
|
via email in business day |
abolished2018-03-16 ,, |
|
|
|
|
