Standards

DB21/T 3890-2023 Active

DB21/T 3890-2023

Publish Date: 2023-12-30

DB21/T 3891-2023 Active

DB21/T 3891-2023 Software adaptation verification technology specification

Publish Date: 2023-12-30

DB21/T 1793.7-2023 Active

DB21/T 1793.7-2023

Publish Date: 2023-12-30

DB21/T 3892-2023 Active

DB21/T 3892-2023 Industrial data circulation compliance check specification

Publish Date: 2023-12-30

DB21/T 3893-2023 Active

DB21/T 3893-2023

Publish Date: 2023-12-30

DB21/T 3894-2023 Active

DB21/T 3894-2023 Industrial Data Flow and Data Trading Implementation Specification

Publish Date: 2023-12-30

DB21/T 3895-2023 Active

DB21/T 3895-2023

Publish Date: 2023-12-30

DB21/T 3896-2023 Active

DB21/T 3896-2023 Information Security Technology: Guidelines for Implementing Security Inspection of Critical Information Infrastructure Key Information Infrastructure Security Check Implementation Manual

Publish Date: 2023-12-30

DB21/T 3897-2023 Active

DB21/T 3897-2023

Publish Date: 2023-12-30

DB21/T 3898-2023 Active

DB21/T 3898-2023 The standard for geological logging operations of surface coal seam gas wells in coal mining areas with voids

Publish Date: 2023-12-30

DB21/T 3899-2023 Active

DB21/T 3899-2023 Ground coal seam gas well fracturing effectiveness evaluation standard

Publish Date: 2023-12-30

DB21/T 3900-2023 Active

DB21/T 3900-2023 Ground coal seam gas production technology specifications for coal mining void areas

Publish Date: 2023-12-30