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Database: 365,228(8 Aug 2026)

maintenance work

maintenance work, Total:15 items.

The international standard classification for "maintenance work" includes: Ventilation and air-conditioning systems .

The Chinese standard classification for "maintenance work" includes: Ventilation and air conditioning engineering .


Anhui Provincial Standard of the People's Republic of China

Shaanxi Provincial Standard of the People's Republic of China

Hunan Provincial Standard of the People's Republic of China

Group Standards of the People's Republic of China

  • T/CASME 1494-2024 Code of practice for the maintenance of building ventilation and air conditioning systems
  • T/GMIAAC 001-2022 Maintain code for ventilation and air conditioning systems of medical buildings

Qinghai Provincial Standard of the People's Republic of China

  • DB63/T 2015-2022 Budget indicators for highway maintenance minor repairs and maintenance projects

Professional Standard - Traffic

  • JT/T 27.42-1993 Technical Grade Standards for Workers in the Transportation Industry Road Transport and Road Maintenance Road Maintenance Workers
  • JT/T 27.44-1993 Technical grade standards for workers in the transportation industry Road transport and road maintenance Tunnel maintenance workers

Hebei Provincial Standard of the People's Republic of China

  • DB13/T 3023-2019 Specifications for setting up safety facilities for road maintenance operations

Tianjin Provincial Standard of the People's Republic of China

  • DB12/T 3023-2019 Specifications for setting up safety facilities for road maintenance operations

Beijing Provincial Standard of the People's Republic of China

  • DB11/T 3023-2019 Specifications for setting up safety facilities for road maintenance operations

Professional Standard - Water Conservancy

  • SL/T 595-2023 Maintenance and repair specification of levee project
  • SL 595-2013 Maintenance and repair specification of levee project

CZ-CSN

  • CSN 26 8805-1997 Power trucks - Operation, maintence, repair work and technical inspections