| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SY/T 6661-2024 | English | 499 |
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4 days [Need to translate]
|
(Calibration Method of Petroleum Geophone)
| Valid |
SY/T 6661-2024
|
| SY/T 6661-2012 | English | 439 |
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3 days [Need to translate]
|
Calibration methods for geophone
| Obsolete |
SY/T 6661-2012
|
| SY/T 6661-2006 | English | 439 |
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|
4 days [Need to translate]
|
Geophone calibration method
| Obsolete |
SY/T 6661-2006
|