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JC/T 1074-2021 PDF English

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JC/T 1074-2021: Purificatory performance of coatings with air purification
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JC/T 1074: Historical versions

Standard IDUSDBUY PDFDeliveryStandard Title (Description)Status
JC/T 1074-2021285 Add to Cart Auto, 9 seconds. Purificatory performance of coatings with air purification Valid
JC/T 1074-200870 Add to Cart Auto, 9 seconds. Purificatory performance of coating with air purification Obsolete

Similar standards

GB/T 8627   GB/T 8625   JC/T 2752   

JC/T 1074-2021: Purificatory performance of coatings with air purification

---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/JCT1074-2021
JC BUILDING MATERIAL INDUSTRY STANDARD ICS 91.100 CCS Q 10 Replacing JC/T 1074-2008 Purificatory Performance of Coatings with Air Purification Issued on. DECEMBER 02, 2021 Implemented on. APRIL 01, 2022 Issued by. Ministry of Industry and Information Technology of the People��s Republic of China

Table of Contents

Foreword... 3 1 Scope... 6 2 Normative References... 6 3 Terms and Definitions... 6 4 Classification and Marking... 7 4.1 Classification... 7 4.2 Marking... 7 5 Requirements... 7 6 Test Methods... 8 6.1 Test environmental conditions... 8 6.2 Test instruments and reagents... 8 6.3 Gas collection and analysis... 9 6.4 Sampling... 9 6.5 Test substrate... 9 6.6 Preparation of test sample plate... 9 6.7 Purificatory efficiency... 10 6.8 Purification durability... 10 7 Calculation of Results... 10 8 Test Report... 10 9 Inspection Rules... 11 9.1 Inspection requirements... 11 9.2 Batching and sampling... 11 9.3 Judgment... 11 Appendix A (Normative) Test Cabin System... 12 Appendix B (Normative) Test Method for Purificatory Performance of Non- Photocatalytic Air Purification Coatings... 16 Appendix C (Normative) Test Method for Purificatory Performance of Photocatalytic Air Purification Coatings... 18

1 Scope

This Document specifies the classification and marking, requirements, test methods, result calculations, test reports and inspection rules of indoor air purification coatings. This Document applies to indoor air purification coatings.

2 Normative References

The provisions in following documents become the essential provisions of this Document through reference in this Document. For the dated documents, only the versions with the dates indicated are applicable to this Document; for the undated documents, only the latest version (including all the amendments) is applicable to this Document. GB/T 3186 Paints Varnishes and Raw Materials for Paints and Varnishes - Sampling GB/T 9271 Paints and Varnishes Standard Panels for Testing GB/T 16129 Standard Method for Hygienic Examination of Formaldehyde In Air of Residential Areas - Spectrophotometric Method GB/T 18883 Indoor Air Quality Standard

3 Terms and Definitions

For the purposes of this Document, the following terms and definitions apply. 3.1 Air purification The behavior of reducing the target pollutants in indoor air that affect human health and making the air clean. 3.2 Air purification coating The coating that can reduce or remove one or more targeted pollutants from indoor air. 3.3 Purificatory efficiency Under the specified test conditions, the ability of the coating to reduce the concentration of formaldehyde (or toluene) in the cabin. 3.4 Purification durability Under the specified test conditions, after the indoor air purification coating is applied several times with the specified concentration of formaldehyde (or toluene) within the specified period (or time), the ability of the material��s continuous purification against the target pollutant.

4 Classification and Marking

4.1 Classification 4.1.1 Products are divided into interior decoration (Class I) and treatment (Class II) according to their uses; Class I is further divided into water-based liquid coatings (IS) and powder inorganic coatings (IF)according to the coating form. 4.2 Marking Products shall be marked in order of product name, document number, coating category, and purification principle.

5 Requirements

The indoor air purification coatings should meet the requirements in Table 1 for the purificatory performance against certain target pollutants.

6 Test Methods

6.1 Test environmental conditions 6.1.1 The laboratory environment is. Temperature (23 �� 2) ��C, relative humidity (50 �� 10) %, formaldehyde concentration is less than or equal to 0.02mg/m3, toluene concentration is less than or equal to 0.02 mg/m3. 6.1.2 The environment of the test chamber is. Temperature (25 �� 1) ��C, relative humidity (50 �� 5) %, formaldehyde concentration is less than or equal to 0.02 mg/m3, and toluene concentration is less than or equal to 0.02 mg/m3. 6.2 Test instruments and reagents 6.2.1 Test chamber system. See Appendix A. 6.2.2 Electronic balance. Accuracy of 0.01 g. 6.2.3 Micro-syringe. Volume range 5��L, division value 0.1��L. 6.2.4 Pollution source reagents. 37%~40% formaldehyde solution (analytical pure); toluene (analytical pure). 6.3 Gas collection and analysis 6.3.1 The collection and concentration analysis of formaldehyde gas shall be carried out in accordance with the methods specified in GB/T 16129. 6.3.2 The collection and concentration analysis of toluene gas shall be carried out according to the method specified in GB/T 18883. 6.4 Sampling The product shall be sampled according to the method stipulated in GB/T 3186, and the sampling volume shall be determined according to the test requirements. 6.5 Test substrate Use a glass plate with a size of 500 mm �� 500 mm, and its surface treatment shall be carried out in accordance with the method specified in GB/T 9271. 6.6 Preparation of test sample plate 6.7 Purificatory efficiency 6.7.1 See Appendix B for the test method of purificatory efficiency of coatings with non- photocatalytic air purification. 6.7.2 See Appendix C for the test method of the purificatory efficiency of coatings with photocatalytic air purification. 6.8 Purification durability 6.8.1 See Appendix B for the test method of purification durability of coatings with non- photocatalytic air purification. 6.8.2 See Appendix C for the test method of purification durability of coatings with photocatalytic air purification.

7 Calculation of Results

7.1.1 See Appendix B for the calculation of the purificatory efficiency and purification durability of coatings with non-photocatalytic air purification. 7.1.2 See Appendix C for the calculation of the purificatory efficiency and purification durability of coatings with photocatalytic air purification.

8 Test Report

The test report shall include the following. a) The name, type, proportion, coating amount, manufacturer or sample sending organization, and test date of the sample; b) Test conditions, including lab and test cabin temperature, relative humidity and other sampling environmental conditions; c) For samples of coatings with non-photocatalytic air purification, indicating the target pollutant type, purificatory efficiency, purification durability and test cycle times;

9 Inspection Rules

9.1 Inspection requirements 9.1.1 The inspection items in Clause 5 are all type inspection items. 9.1.2 In one of the following situations, type inspection shall be carried out. 9.2 Batching and sampling 9.2.1 Batching 9.2.2 Sampling Samples shall be randomly selected from the product; and the product shall be sampled according to GB/T 3186. 9.3 Judgment When the inspection results meet all the technical requirements of this Document, this batch of products is judged to be qualified.

Appendix A

(Normative) Test Cabin System A.1 Overview This Appendix specifies the composition, structure and configuration requirements of the standard test system used in the purificatory performance test of indoor air purification coatings. A.3 Schematic diagram of test system A.3.1 The schematic diagram of the test system is shown in Figure A.1. A.4 Verification of effectiveness of test system A.4.1 Calibration of conventional parameters. Calibrate according to the parameters listed in Table A.1. A.4.2 Attenuation requirements for the concentration of target pollutants in a single test cabin. Under the test environment conditions specified in 6.1, the test cabin is sealed. Take formaldehyde (or toluene) gas as the target pollutant; pipette (3��0.1) ��L pollutant with a 5��L micro-syringe, inject it into the gas generator; turn on the gas generator and stirring fan; and start timing. Turn off the gas generator and stirring fan after 2h; and collect and analyze the target pollutant concentration at the same time. After the collection is completed, continue to turn on the stirring fan for 24h; collect the gas in the cabin and test the concentration of target pollutants; and turn off the fan when collecting the gas. If the formaldehyde decay rate RC��25% (or toluene decay rate RC6��20%), the calibrated test cabin is qualified. The attenuation rate R is calculated according to the Formula (A.1). A.4.4 Effectiveness verification should be carried out once a month, and the attenuation rate of the contrast cabins shall be tested every time. A.4.5 After each test, the residue in the cabin shall be cleaned. Before each sample is tested, the background concentration in the cabin shall be tested according to 6.3.If the concentration does not meet the requirements, it shall be cleaned again until the concentration meets 6.1.2. ......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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