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GB/T 14295-2019 English PDF

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Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 14295-2019 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

GB/T 14295: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 14295-2019	285	Add to Cart	Auto, < 3 mins	Air filter	Valid
GB/T 14295-2008	RFQ	ASK	5 days	Air filters	Obsolete
GB/T 14295-1993	359	Add to Cart	3 days	Air filter	Obsolete

Similar standards

GB/T 39976 GB 50243 GB 50738 GB/T 14296 GB/T 14294

Basic data

Standard ID: GB/T 14295-2019 (GB/T14295-2019)
Description (Translated English): Air filter
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: P48
Classification of International Standard: 91.140.30
Word Count Estimation: 26,243
Date of Issue: 2019-06-04
Date of Implementation: 2020-05-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 14295-2019: Air filter

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Air filter ICS 91.140.30 P48 National Standards of People's Republic of China Replace GB/T 14295-2008 air filter 2019-06-04 released 2020-05-01 Implementation State Administration for Market Regulation Issued by China National Standardization Administration

Preface Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Classification and marking 2 5 General requirements 3 6 Requirements 3 7 Test method 5 8 Inspection rules 7 9 Marking, packaging, transportation and storage 9 Appendix A (Normative Appendix) Test methods for air filter resistance, counting efficiency and PMx purification efficiency 10 Appendix B (Normative Appendix) Air filter weight efficiency and dust holding capacity test method 16 Appendix C (Normative Appendix) Air Filter Antistatic Test Method 20 Appendix D (Normative Appendix) Test method for increase in ozone concentration of electrostatic air filter 21

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 14295-2008 "Air Filter". Compared with GB/T 14295-2008, the main technical changes are as follows. ---Modified the classification and marking methods of products; ---Added PMx purification efficiency requirements and test methods; ---Added requirements and test methods for the rated power and working voltage of the electrostatic air filter; ---Modified the limit requirements for the increase in ozone concentration of the electrostatic air filter; ---Added requirements for test instruments; ---Added the performance requirements for the air filter test device; ---Added the antistatic test method of the air filter; ---Modified the requirements of the standard test dust for the air filter dust holding capacity test, and increased the dust holding capacity limit. This standard was proposed by the Ministry of Housing and Urban-Rural Development of the People's Republic of China. This standard is under the jurisdiction of the National Standardization Technical Committee for HVAC and Purification Equipment (SAC/TC143). The organization responsible for drafting this standard. China Academy of Building Research Co., Ltd. Participated in the drafting of this standard. Tsinghua University, Academy of Military Sciences Chemical Defense Research Institute, National Environmental Protection Equipment Quality Supervision and Inspection Center (Jiangsu), Beijing Oriental Measurement and Testing Institute, Suzhou Huatai Air Filter Co., Ltd., Heshi (Suzhou) Special Materials Co., Ltd., Zhejiang Jinhaihuan Environmental Technology Co., Ltd., Honeywell Environmental Automation Products (Tianjin) Co., Ltd., Amic Air Filter (Suzhou) Co., Ltd., Ai (China) Environmental Purification Co., Ltd., Guangzhou Industrial Microbiology Testing Center, Nanjing Tianjia Environmental Technology Co., Ltd., TSI China Company, Zhejiang Manruid Environmental Technology Co., Ltd., Zhejiang Dunan Artificial Environment Co., Ltd., Dandong Shifa Industrial Filter Cloth Co., Ltd., Dandong Tianhao Purification Material Co., Ltd., Suzhou Beian Electronic Technology Co., Ltd., Shanghai Jiefeiran Environmental Technology Co., Ltd., Hefei Midea Warm Tong Equipment Co., Ltd., Apollo Environmental Protection Equipment Co., Ltd., Shunde District, Foshan City, Hebei Zhongkangweier Environmental Technology Co., Ltd., Jiangsu Shengwei Filtration Equipment Co., Ltd., Shandong Xuesheng Electric Co., Ltd., Guangdong Microbial Analysis and Testing Center, Zhongshan Shangpin Environmental Purification Technology Co., Ltd., Sichuan Yimikang Environmental Technology Co., Ltd., Guangdong Guohua Civil Air Defense Technology Co., Ltd. The main drafters of this standard. Wang Zhichao, Xu Zhaowei, Han Hao, Zhang Zhenzhong, Xu Xiaohao, Xiao Yiqun, Huang Luying, Li Jiandong, Wang Zhiyong, Yang Yingxia, Hou Yinyan, Zheng Yu, Ji Qizheng, Jiang Longhao, Zheng Hui, Feng Weihao, Du Shaoping, Wu Xiaoquan, Zhang Jianhua, Chen Wei, Li Li, Gao Shan, Xing Chunshuang, Wang Weiran, Zhou Ye, Chen Zhan, Zhong Yaowu, Chen Long, Luo Fan, Zhang Lisong, Xie Xiaobao, Huang Hai, Huang Cunyong, Guo Fusong, Chen Weizhong. The previous versions of the standard replaced by this standard are as follows. ---GB/T 14295-1993, GB/T 14295-2008. air filter

1 Scope

This standard specifies the terms and definitions, classification and marking, general requirements, requirements, test methods, inspection rules, signs, and Packaging, transportation and storage. This standard applies to air filters for ventilation, air conditioning and air purification systems or equipment. This standard does not apply to air filters with high efficiency and above.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB/T 191 Packaging, storage and transportation pictorial signs GB/T 1019 General rules for packaging of household and similar electrical appliances GB/T 1236 Standardized air duct performance test for industrial ventilators GB/T 2828.1 Sampling inspection procedure by attributes Part 1.Batch inspection sampling plan retrieved by acceptance quality limit (AQL) GB 4706.1 Safety of household and similar electrical appliances Part 1.General requirements GB 8624 Classification of burning performance of building materials and products GB/T 18204.2 Hygienic inspection methods for public places Part 2.Chemical pollutants GB 50243 Ventilation and air conditioning engineering construction quality acceptance code JG/T 404 filter material for air filter

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Equipment that uses filtration, adhesion or charged capture to remove particulate matter in the air. 3.2 After the particles are charged by a high-voltage electrostatic field, they are captured by the dust collecting plate to achieve the removal of airborne particles in the air. filter. 3.3 Rated air volume In the standard air state, the air volume flow through the air filter in the nominal unit time.

4 Classification and marking

4.1 Classification 4.1.1 According to the efficiency level, it is divided into coarse efficiency filters, medium efficiency filters, high and medium efficiency filters and sub-high efficiency filters, and the codes are C, Z, GZ respectively And YG. Among them, coarse-effect filters are divided into coarse-effect type 1, coarse-effect type 2, coarse-effect type 3 and coarse-effect type 4, and the codes are C1, C2, C3 and C4; Medium-efficiency filters are divided into medium-efficiency type 1, medium-efficiency type 2 and medium-efficiency type 3.The codes are Z1, Z2 and Z3 respectively. 4.1.2 According to the structure type, it is divided into flat type, bag type, folding type, winding type, barrel type, pole plate type and honeycomb type, and the codes are PB, DS, ZZ, JR, TS, JB and FC. 4.2 Marking Example 1.Air filter with medium efficiency type 2, bag type, 592mm×592mm×600mm and rated air volume of 3400m3/h, marked as K-Z2-DS-592×592×600-3400. Example 2.An air filter with coarse-effect type 3, flat plate, 610mm×610mm×80mm, and rated air volume of.2000m3/h, marked as K-C3-PB-610×610×80-2000. Note. The principle of expression of air filter dimensions is. the air flow direction is the depth, and the air flow direction is the vertical length of the vertical section as the height and level. Length is width.

5 General requirements

5.1 The application of air filter should meet the environmental protection and fire resistance requirements of the occasion. 5.2 The electrostatic air filter should meet the following requirements. a) The single-phase rated voltage should not be greater than 250V, the three-phase rated voltage should not be greater than 480V, and the rated frequency should be 50Hz; b) Power-off protection should be provided to ensure that when the unit structure is opened for repair or maintenance, its internal devices are automatically powered off; c) The electrical safety performance should meet the relevant requirements of GB 4706.1. 5.3 The filter material for the air filter should meet the relevant requirements of JG/T 404. 5.4 The shear strength and tensile strength of the air filter binder should not be lower than the strength of the filter material used, and its temperature and humidity resistance should be the same as the filter material used. 5.5 The sealant for the air filter should be able to ensure that the filter will not crack or degummed during operation under the maximum operating air volume or final resistance condition, and It is elastic, and its temperature and humidity resistance should be the same as the filter material used. 5.6 The structure of the air filter should meet the following requirements. a) The frame or support body should have the required strength and rigidity, and should be able to withstand the weight and pressure required for installation, operation and maintenance; b) The four corners and joints of the frame should not be loose or cracked, and the filter material should not be loose or deformed in the frame; c) The gasket and the frame should be firmly bonded, and the inner and outer edges of the gasket should not exceed the inner and outer edges of the frame.

6 requirements

6.1 Appearance 6.1.1 The surface of the air filter should be smooth and flat, free of scratches, rust spots, indentations and damage. 6.1.2 The filter material, gasket, protective net and other parts should not be deformed. 6.1.3 The shell of the electrostatic air filter should be marked with electrical safety warnings and electrical terminal wiring diagrams. 6.2 Dimensional deviation 6.2.1 Dimensions The allowable deviation of the external dimensions is shown in Table 1. Table 1 The allowable deviation of external dimensions in millimeters 6.2.2 Flatness The flatness of the end face and side plate of the sub-high efficiency filter should not be greater than 1.6mm. 6.3 Resistance and efficiency 6.3.1 In the initial state, the air filter resistance, weighing efficiency and counting efficiency should meet the requirements of Table 2. Table 2 Resistance and efficiency of air filter under rated air volume 6.3.2 For products with a nominal PMx purification efficiency, the difference between the nominal efficiency value and the measured efficiency value should not exceed 5%. 6.4 Dust holding capacity The air filter should have a nominal dust holding capacity index, the actual measured value should not be less than 90% of the nominal value, and should not be less than 36mg/(m3/h). 6.5 Cleaning The efficiency of the cleanable air filter after cleaning should not be less than 85% of the efficiency before cleaning, and the resistance should not be greater than the resistance before cleaning 150% of it. 6.6 Antistatic For air filters with charged filter media, the efficiency after antistatic treatment should be nominal, and the difference between the nominal efficiency value and the measured efficiency value should not be large Less than 5%. 6.7 Fire protection When the air filter has fire protection requirements, it should meet the relevant regulations of GB 8624. 6.8 Rated power For an electrostatic air filter with a nominal value not greater than 30W, the actual measured value should not be greater than 120% of the nominal value; for the nominal value greater than For a 30W electrostatic air filter, the measured value should not be greater than 110% of the nominal value. 6.9 Working voltage For the ionization voltage and dust collection voltage of the electrostatic air filter, the deviation between the measured value and the nominal value should be within ±5%. 6.10 Increase in ozone concentration Under the rated air volume and working voltage, the 1h average value of the increase in ozone concentration of the electrostatic air filter should not exceed 0.05mg/m3. 6.11 Electrical safety 6.11.1 Electric strength After applying the test voltage to the electrostatic air filter, there should be no breakdown or flashover. 6.11.2 Leakage current The cold leakage current value between the exposed metal part of the electrostatic air filter and the power cord should not be greater than 0.75mA (Class I) or 0.25mA (Class II). 6.11.3 Grounding resistance The resistance value between the exposed metal part of the electrostatic air filter and the ground terminal should not be greater than 0.1Ω.

7 Test method

7.1 Test instrument The test instrument should meet the requirements of Table 3. Table 3 Test instrument 7.2 Appearance Apply visual inspection. 7.3 Dimensional deviation 7.3.1 Dimensions Use vernier calipers to check. 7.3.2 Flatness Check with flat plate and feeler gauge 7.4 Resistance and efficiency Resistance, counting efficiency and PMx purification efficiency should be tested according to the method specified in Appendix A, and the weight efficiency should be tested according to the method specified in Appendix B. 7.5 Dust holding capacity The dust holding capacity should be tested according to the method specified in Appendix B. 7.6 Cleaning The cleaning should be carried out according to the cleaning method given by the manufacturer, and the efficiency and resistance after cleaning should be tested according to the method specified in Appendix A or Appendix B. 7.7 Antistatic Static elimination should be tested according to the method specified in Appendix C, and the efficiency and resistance after static elimination should be tested according to the method specified in Appendix A. 7.8 Fire protection Air filters with fire protection requirements shall be tested for fire protection according to the method specified in GB 8624. 7.9 Rated power The rated power of the electrostatic air filter shall be tested according to the method specified in GB 4706.1. 7.10 Working voltage The working voltage of the electrostatic air filter should be tested according to the method specified in GB 4706.1. 7.11 Increase in ozone concentration The increase in ozone concentration should be tested in accordance with the method specified in Appendix D. 7.12 Electrical safety 7.12.1 Electric strength The electric strength should be tested according to the method specified in GB 4706.1. 7.12.2 Leakage current The leakage current should be tested according to the method specified in GB 4706.1. 7.12.3 Grounding resistance The grounding resistance should be tested according to the method specified in GB 4706.1.

8 Inspection rules

8.1 Inspection classification The air filter inspection is divided into factory inspection and type inspection. 8.2 Factory inspection 8.2.1 The air filter shall be inspected by the quality inspection department of the manufacturer before leaving the factory. 8.2.2 The factory inspection shall be carried out item by item according to the provisions of Table 4. Table 4 Inspection items 8.3 Type inspection 8.3.1 Type inspection shall be carried out in one of the following situations. a) When the new product is finalized or the old product is transferred to the factory to produce trial products; b) When there are major changes in product structure, manufacturing processes or materials; c) When production is resumed after the product has been discontinued for more than one year; d) There is a big difference between the factory inspection result and the last type inspection. 8.3.2 Sampling for type inspection shall be randomly selected from the samples that have passed the factory inspection, and the sampling method shall comply with the relevant provisions of GB/T 2828.1. 8.3.3 Type inspection items are shown in Table 4. 8.3.4 Judgment rules. if any item is unqualified, double sampling, if it is still unqualified, it is a substandard product, otherwise it is a qualified product. 9 Marking, packaging, transportation and storage 9.1 Logo Each air filter should have a label fixed at an obvious position, and the label should be firmly fixed to the filter frame. The direction of the airflow or air inlet/outlet should be marked The location of the mouth, the content should at least include. a) The manufacturer's name, trademark or logo; b) Product name, mark and model; c) Basic performance parameters (dimensions, rated air volume, resistance, efficiency, efficiency after static elimination, weight efficiency, dust holding capacity, rated power, Ionization voltage, dust collection voltage, increase in ozone concentration, etc.); d) Factory date and factory number. 9.2 Packaging 9.2.1 The air filter should be packaged according to the relevant regulations of GB/T 191 and GB/T 1019. 9.2.2 The product certificate and installation instructions should be attached in the packing box. 9.2.3 The content of the product certificate shall include at least. a) Product name and model; b) Product factory number; c) Inspection conclusion; d) Inspector's signature or seal; e) Date of inspection. 9.2.4 The content of the product installation and operation manual should at least include. a) Product name and model; b) working principle; c) Implementation standards; d) Main technical parameters; e) Attachment catalog; f) Installation instructions and requirements; g) Instructions for use, maintenance and maintenance precautions. 9.3 Transportation The air filter should not be collided, squeezed, thrown or thrown during transportation, and should not be subjected to strong vibration, rain, dampness and sun exposure. 9.4 Storage The air filter should be stored in a normal temperature, dry, ventilated, non-corrosive and explosive gas warehouse, and should be protected from product collision Measures.

Appendix A

(Normative appendix) Test method for air filter resistance, counting efficiency and PMx purification efficiency A.1 Test device A.1.1 Air duct system A.1.1.1 Structure The structure and size diagram of the air duct system is shown in Figure A.1.The production and installation of the air duct system should comply with the relevant regulations of GB 50243, and The following requirements should be met. a) When the air filter section size is different from the test air duct section, the pipe section used to install the tested air filter should adopt a reduced diameter The structure and size of the tube are shown in Figure A.2; b) When measuring efficiency, the structure and size of the sampling tube are shown in Figure A.3.The selection of the diameter of the sampling tube mouth should consider the approximate isokinetic force. The flow conditions, that is, the suction speed of the sampling nozzle and the wind speed in the air duct should be similar, and the deviation should not be greater than ±10%. When the wind speed in the duct When the speed of the sampling nozzle is similar, the sampling pipe should adopt the type of Figure A.3a); when the wind speed in the air duct is lower than the speed of the sampling nozzle, the sampling The sample tube should adopt the type shown in Figure A.3b); when the wind speed in the air duct is higher than the speed of the sampling nozzle, the sampling tube should adopt the type shown in Figure A.3c); c) The structure of the static pressure ring shall comply with the relevant regulations of GB/T 1236; d) The air duct system of the test device can be positive pressure or ne......

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 14295-2019_English be delivered?

Answer: Upon your order, we will start to translate GB/T 14295-2019_English as soon as possible, and keep you informed of the progress. The lead time is typically in 9 seconds (download/delivered in 9 seconds). The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 14295-2019_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 14295-2019_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 14295-2019?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 14295-2019 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.