Standards

Current Category: CN-DB21 - Liaoning Province

Status: Active
All Active Pending Replaced Abolished Abolished (Transferred)
Publish Year: 2021& Before
All 2026 2025 2024 2023 2022 2021& Before
DB21/T 1636-2008 Active

DB21/T 1636-2008

Publish Date: 2008-07-28
DB21/T 1638-2008 Active

DB21/T 1638-2008 Urban rail transit automatic fare collection system standardization guidelines

Publish Date: 2008-07-28
DB21/T 1641-2008 Active

DB21/T 1641-2008 Urban rail transit automatic fare collection system communication data interface specification

Publish Date: 2008-07-28
DB21/T 1635-2008 Active

DB21/T 1635-2008 Liao Xiaoxian Cultivation Technical Specification

Publish Date: 2008-07-17
DB21/T 1455.8-2008 Active

DB21/T 1455.8-2008

Publish Date: 2008-07-03
DB21/T 1455.7-2008 Active

DB21/T 1455.7-2008

Publish Date: 2008-07-03
DB21/T 1455.6-2008 Active

DB21/T 1455.6-2008

Publish Date: 2008-07-03
DB21/T 1454.5-2008 Active

DB21/T 1454.5-2008

Publish Date: 2008-07-03
DB21/T 1454.4-2008 Active

DB21/T 1454.4-2008

Publish Date: 2008-07-03
DB21/T 1632-2008 Active

DB21/T 1632-2008 The forecasting level of meteorological conditions for floods in the watershed of Liaoning Province

Publish Date: 2008-07-03
DB21/T 736-1993 Active

DB21/T 736-1993 Big flat apricot high yield cultivation techniques

Publish Date: 1992-11-30
DB21/T 734-1993 Active

DB21/T 734-1993 The cultivation technology of large flat apricot seedlings

Publish Date: 1992-11-30