Standards

QC/T 289-2025 Oil pump of automobile engine

This document specifies the terminology and definitions, symbols, technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage of automotive engine oil pumps.
This document is applicable to mechanical oil pumps (referred to as "oil pumps") used in automotive engines.

Publish Date: 2025-05-09

QC/T 544-2025 Camshaft of automobile engine

This document specifies the classification and structural types, technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage of automotive engine camshafts.
This document applies to integral camshafts and mechanical interference-fit combined camshafts (hereinafter referred to as "camshafts") used in automotive engines.

Publish Date: 2025-05-09

QC/T 631-2025 Exhaust muffler assembly of automotive

This document specifies the terms and definitions, technical requirements, test methods, inspection rules, and markings, packaging, transportation, and storage of automotive exhaust mufflers (hereinafter referred to as "mufflers").
This document is applicable to exhaust muffler assemblies for M-class and N-class motor vehicles.

Publish Date: 2025-05-09

QC/T 798-2025 Multi‑layers plastic tubing for automotive fuel system

This document specifies the marking, dimensional specifications, technical requirements, inspection rules, packaging, transportation, and storage requirements for multi-layer plastic fuel pipes used in automobiles (hereinafter referred to as "multi-layer pipes"), and describes the testing methods.
This document is applicable to the production, inspection, sale, and use of multi-layer plastic fuel pipes with a usage temperature range of -40 °C to +135 °C, a working medium of gasoline or gasoline vapor, and a maximum working pressure not exceeding 0.7 MPa.
This document is applicable to straight-wall pipes. For corrugated pipes, refer to the relevant testing methods according to the specific usage environment.

Publish Date: 2025-05-09

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