GB/T 29914-2025Oxidation catalysts for diesel vehicle exhaust purification (English PDF)

1 Scope

This document specifies the product marking, technical requirements, and inspection rules for diesel vehicle exhaust purification oxidation catalysts, and describes the corresponding requirements.

Experimental methods.

This document applies to diesel fuels that use cordierite honeycomb ceramic materials as a carrier and load active components such as rare earth elements, precious metals, or other metals.

Vehicle exhaust purification oxidation catalyst.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are listed below.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

GB/T 5181 Automobile Emissions Terms and Definitions

GB/T 8170 Rules for rounding off numerical values and the representation and determination of limiting values

GB 17691 Emission Limits and Measurement Methods for Pollutants from Heavy-Duty Diesel Vehicles (China VI Stage)

GB/T 18881-2017 Catalysts for Exhaust Purification in Light-Duty Gasoline Vehicles

GB/T 25994-2010 Cellular ceramics

HJ451-2008 Technical Requirements for Environmental Protection Products. Diesel Vehicle Exhaust Aftertreatment Devices

Determination of Platinum, Palladium, and Rhodium in HJ509 Automotive Ceramic Catalytic Converters. Inductively Coupled Plasma Atomic Emission Spectrometry and Inductively Coupled Plasma Spectrometry, etc.

Inductively coupled plasma mass spectrometry

QC/T 829-2019 Technical Requirements for Exhaust Aftertreatment Systems of Diesel Vehicles

3 Terms and Definitions

The terms and definitions defined in GB/T 5181 and QC/T 829-2019, as well as the following terms and definitions, apply to this document.