Standards

QC/T 1222.2-2025 Automobile engines—Inspection method for surface treatment of piston rings—Part 2:PVD coating

This document specifies the terms and definitions, types, and names of various parts for PVD-coated piston rings of automotive engines, as well as the inspection methods.
This document is applicable to the inspection of PVD-coated piston rings for automotive engines with a cylinder diameter of less than or equal to 160 mm. The inspection of PVD-coated piston rings of other types and large-diameter cylinders should be carried out with reference to this document.

Publish Date: 2025-05-09

QC/T 1222.1-2025 Automobile engines—Inspection method for surface treatment of piston rings—Part 1:Chromium based ceramic composite coating

This document specifies the terms and definitions, types and compositions, and testing methods for chromium-based ceramic composite coatings on piston rings of automotive engines.
This document is applicable to the testing of chromium-based ceramic composite coatings on piston rings of automotive engines with a cylinder diameter of less than or equal to 160 mm. The testing of other types and large-diameter piston ring composite coatings should be carried out with reference to this document.

Publish Date: 2025-05-09

QC/T 1221-2025 Modified polypropylene door outer panels for automobile

This document mainly stipulates the technical requirements, inspection rules, packaging, marking, transportation, and storage of modified polypropylene car door panels, and describes the product structure and testing methods.
This document is applicable to the production, inspection, sales, and use of modified polypropylene plastic car door panels that are injection-molded and composite-formed.

Publish Date: 2025-05-09

QC/T 1220-2025 Hydraulic hose assembly for commercial vehicle clutch

This document specifies the performance requirements, test methods, inspection rules, marking, packaging, transportation, and storage requirements for hydraulic hose assemblies used in commercial vehicle clutches, and describes the corresponding test methods.
This document is applicable to the production, inspection, sales, and use of hydraulic hose assemblies used in commercial vehicle clutches with a nominal inner diameter of 6.3mm, a pressure range of 0 MPa to 9 MPa, and a temperature range of -43 ℃ to 120 ℃ (hereinafter referred to as "hoses and hose assemblies").

Publish Date: 2025-05-09

QC/T 1219-2025 Composite integrated pedal for autotruck

This document specifies the technical requirements, inspection rules, packaging, marking, transportation, and storage requirements for integrated vehicle boarding steps made of composite materials (long glass fiber reinforced polypropylene) used in commercial vehicles, and describes the test methods.
This document applies to integrated vehicle boarding steps made of long glass fiber reinforced polypropylene composite materials used in commercial vehicles for drivers and passengers to get on and off the vehicle.

Publish Date: 2025-05-09

QC/T 1229-2025

Publish Date: 2025-04-10

QC/T 531-2025 Car mirror

Publish Date: 2025-04-10

QC/T 1227-2025 Car Cornering Gear Technology Specification

Publish Date: 2025-04-10

QC/T 222-2025 Dump truck

Publish Date: 2025-04-10

QC/T 326-2025 Numbering rules for automotive standardized parts

This document specifies the numbering rules for standard parts products used in automobiles.
This document is applicable to the numbering of automotive standard parts products in the development, design, production, procurement, and circulation of products for automobile and motorcycle enterprises and their parts.

Publish Date: 2025-04-10

QC/T 502-2025 Steel automotive parts induction hardening metallographic inspection

Publish Date: 2025-04-10

QC/T 273-2025 Aluminum Alloy Die-casting Specification for Automotive Components

Publish Date: 2025-04-10