Valid

GB/T 42265-2022Test method for air-purification performance of photocatalytic materials - Removal of toluene (English PDF)

Preview PDF

This is a limited preview

Buy now to download the full PDF (24 pages)

Need quotation for your management?

Get a formal quotation for GB/T 42265-2022 in 30 minutes.

Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

December 30, 2022

Implementation date

April 1, 2023

Scope

GB/T 42265-2022 (Test method for air-purification performance of photocatalytic materials - Removal of toluene) is available as an English-translated PDF.

GB/T 42265-2022 is the Chinese standard "Test method for air-purification performance of photocatalytic materials - Removal of toluene". Its scope clause reads: This document describes a method for testing the air purification performance of materials containing or attached to the surface of photocatalysts.

The agent is usually a semiconducting metal oxide such as titanium dioxide (TiO2) or other ceramic material. This test method exposes the sample to ultraviolet light (UV-A) irradiation, continuous exposure to simulated polluted air.

This document applies to different types and uses of panels, such as veneer, wood and other building materials. This document also applies to structured filter materials, such as honeycomb filter panels, knitted or non-woven fabrics.

Also suitable for composite ceramic microcrystals Plastic, paper materials, etc. This document does not apply to powdered or granular photocatalytic materials.

This test method is generally applicable to the detection of air purification of photocatalytic materials, but not to the determination of other properties of photocatalytic materials, such as water Pollutant degradation, self-cleaning, anti-fog or antibacterial, etc. This method only involves the removal of toluene. Its clauses include terms and definitions.

Found what you need?

Document preview — GB/T 42265-2022

National Standard of the People's Republic of China

ICS: 81.060.30
Classification: Q 32

Issued by: State Administration for Market Regulation, China National Standardization Administration

Preface
1 Scope
2 Normative references
3 Terms and Definitions
4 symbols
5 Principle
6 Instruments and equipment
6.1 Test device
6.2 Test gas supply system
6.3 Photocatalytic Reactor
6.4 Light source
6.5 Analysis system
7 Specimen
8 Test step
8.1 General
8.2 Pretreatment of test pieces
8.3 Toluene removal test
9 Result Calculation
10 Test methods for low-performance specimens
11 Test report
Appendix A (informative) Comparative test results

1 Scope

This document describes a method for testing the air purification performance of materials containing or attached to the surface of photocatalysts.

This document applies to different types and uses of panels, such as veneer, wood and other building materials.

This document also applies to structured filter materials, such as honeycomb filter panels, knitted or non-woven fabrics. Also suitable for composite ceramic microcrystals

Plastic, paper materials, etc. This document does not apply to powdered or granular photocatalytic materials.

This test method is generally applicable to the detection of air purification of photocatalytic materials, but not to the determination of other properties of photocatalytic materials, such as water

Pollutant degradation, self-cleaning, anti-fog or antibacterial, etc. This method only involves the removal of toluene.

2 Normative references

The content in the following documents constitutes the essential provisions of this document through normative references in the text, among which, the dated references

For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.

ISO 4892-3 Laboratory light source exposure test methods for plastics Part 3.Fluorescent ultraviolet lamps (Plastics-Methodsofex-

Note. GB/T 16422.3-2022 Plastic laboratory light source exposure test method Part 3.Fluorescent ultraviolet lamp (ISO 4892-3.2016, IDT)

ISO 10677 Fine ceramics (advanced ceramics, advanced technical ceramics) Ultraviolet light source for the detection of semiconductor photocatalytic materials [Finece-

Note. GB/T 27025-2019 General requirements for the competence of testing and calibration laboratories (ISO /IEC 17025.2017, IDT)

ISO 80000-1 Quantities and units Part 1.General (Quantitiesandunits-Part 1.General)

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 Photocatalyst

Under the excitation of a certain light source, it can produce catalytic substances, including decomposition and removal of pollutants in air and water, deodorization, antibacterial, and self-activation.

Cleaning and anti-fog etc.

3.2

A material that contains or uses a photocatalyst and has photocatalytic properties. […]

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 24 pages — is available in the English PDF.

Referenced standards

Normative references

ISO 4892 · ISO 10677 · IEC 17025.2017 · ISO 80000

How to Download GB/T 42265-2022

1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.