T/CCTAS 140-2025 Active Group standards

T/CCTAS 140-2025 The technical requirements for the after-treatment device of a railway internal combustion locomotive

Publish Date: 2025-02-05 Implement Date: 2025-03-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CCTAS 140-2025

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Locomotive

Publish Date: 2025-02-05

Implement Date: 2025-03-01

Scope

Main technical content: Establishing technical standards for exhaust after-treatment systems of in-service railway diesel locomotives, effectively eliminating the phenomenon of black smoke from in-service diesel locomotives and efficiently purifying CO and HC toxic gases during operation, which is of great significance for standardizing the industry and market applications and improving the efficiency of energy conservation and emission reduction tasks in the railway industry. The group standard stipulates the general requirements, device composition and functions, performance requirements, installation requirements, and testing and inspection of in-service railway diesel locomotive exhaust after-treatment devices. It is applicable to the design, manufacture, and inspection of exhaust after-treatment devices for pollutants (CO, HC, and particulate matter) from in-service railway diesel locomotives. Through the study of the modification of various models of diesel locomotives from railway bureaus under the China Railway Group and non-railway enterprises, the emission reduction rate of pollutants is tested using dedicated detection instruments under specified operating conditions, achieving no visible black smoke and high-efficiency purification of harmful gases.