| Standard No. |
Title |
Price(USD) |
Delivery |
Status |
Add to Cart |
| GB 7731.13-1988 |
Methods for chemical analysis of ferrotungsten; The combustion-neutralization titration method for the determination of sulfur content |
$45.00 |
via email in 1~3 business day |
superseded,2008-11-1,1989-3-1 |
|
| GB 7731.14-1988 |
Methods for chemical analysis of ferrotungsten-The polarographic method for the determination of lead content |
$30.00 |
via email in 1~3 business day |
abolished2008-11-01 ,2008-11-1,1990-1-1 |
|
| GB 7731.2-1987 |
Methods for chemical analysis of ferrotungsten-The sodium periodate photometric method for the determination of manganese content |
$30.00 |
via email in 1~3 business day |
valid,,1988-3-1 |
|
| GB 7731.3-1987 |
Methods for chemical analysis of ferrotungsten-The bis (cyclohexanone) oxalyldihydrazone photometric method for the determination of copper content |
$30.00 |
via email in 1~3 business day |
valid,,1988-3-1 |
|
| GB 7731.4-1987 |
Methods for chemical analysis of ferrotungsten-The molybdenum blue photometric method for the determination of phosphorus content |
$45.00 |
via email in 1~3 business day |
superseded,2022-3-1,1988-3-1 |
|
| GB 7731.5-1987 |
Methods for chemical analysis of ferrotungsten - The molybdenum blue photometric method for the determination of silicon content |
$30.00 |
via email in 1~3 business day |
superseded,2022-3-1,1988-3-1 |
|
| GB 7731.6-1987 |
Methods for chemical analysis of ferrotungsten-The molybdenum blue photometric method for the determination of arsenic content |
$30.00 |
via email in 1~3 business day |
abolished2009-04-01 ,2009-4-1,1988-3-1 |
|
| GB 7731.7-1987 |
Methods for chemical analysis of ferrotungsten-The phenylfluorone photometric method for the determination of tin content |
$30.00 |
via email in 1~3 business day |
abolished2008-11-01 ,2008-11-1,1988-3-1 |
|
| GB 7731.8-1987 |
Methods for chemical analysis of ferrotungsten-The tetraethylrhodamine photometric method for the determination of antimony content |
$30.00 |
via email in 1~3 business day |
superseded,2009-4-1,1988-3-1 |
|
| GB 7731.9-1987 |
Methods for chemical analysis of ferrotungsten-The bismuth iodide photometric method for the determination of bismuth content |
$30.00 |
via email in 1~3 business day |
abolished2009-04-01 ,2009-4-1,1988-3-1 |
|
| GB 7732-1987 |
Standard test method for surface-crack fracture toughness Kle of metallie plates |
$165.00 |
via email in 1~3 business day |
superseded,2008-11-1,1988-3-1 |
|
| GB 7733-1987 |
Matals-rotating bar bending corrosion fatigue testing |
$120.00 |
via email in 1~3 business day |
superseded,2009-4-1,1988-3-1 |
|
| GB 7735-1987 |
Eddy current testing for the compactness of steel pipes and tubes |
|
via email in business day |
superseded,1996-3-1,1988-2-1 |
|
| GB 7737-1987 |
Ferroniobium |
|
via email in business day |
valid,,1988-2-1 |
|
| GB 7740-1987 |
Casings for export |
$60.00 |
via email in 1~3 business day |
superseded,2006-6-1,1988-1-1 |
|
| GB 7741-1987 |
Method of inspection for export salted casings |
$75.00 |
via email in 1~3 business day |
abolished2006-06-01,2006-6-1,1988-1-1 |
|
| GB 7743-1987 |
Packing of sodium carbonate for industrial use |
$30.00 |
via email in 1~3 business day |
valid,,1987-12-1 |
|
| GB 7744-1987 |
Hydrofluoric acid for industrial use |
|
via email in business day |
superseded,1999-4-1, |
|
| GB 7744-1998 |
Hydrofluoric acid for industrial use |
$340.00 |
via email in 1~3 business day |
abolished2009-09-01 ,2009-9-1,1999-4-1 |
|
| GB 7744-2008 |
Hydrofluoric acid for industrial use |
$150.00 |
via email in 1~3 business day |
valid,,2009-9-1 |
|
|
|
