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GB/T 38398-2019 English PDF

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US$199.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 38398-2019: Textiles - Filtration performance - Determination of most penetrating particle size
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 38398-2019	199	Add to Cart	3 days	Textiles - Filtration performance - Determination of most penetrating particle size	Valid

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Basic data

Standard ID: GB/T 38398-2019 (GB/T38398-2019)
Description (Translated English): Textiles - Filtration performance - Determination of most penetrating particle size
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: W04
Classification of International Standard: 59.080.30
Word Count Estimation: 10,144
Date of Issue: 2019-12-31
Date of Implementation: 2020-07-01
Quoted Standard: GB/T 6682
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration
Summary: This standard specifies the test methods for the most penetrating particle size of textiles and their filtration efficiency. This standard applies to all kinds of air filtration fabrics and their products.

GB/T 38398-2019: Textiles - Filtration performance - Determination of most penetrating particle size

---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.
Textiles--Filtration performance--Determination of most penetrating particle size ICS 59.080.30 W04 National Standards of People's Republic of China Determination of the most easily penetrated particle size for textile filtration performance 2019-12-31 release 2020-07-01 implementation State Administration of Market Supervision Published by the National Standardization Administration

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed by China Textile Industry Federation. This standard is under the jurisdiction of the National Technical Committee for Textile Standardization (SAC/TC209). This standard was drafted. Guangzhou Fiber Product Testing Research Institute, Zhejiang Yanpai Filtration Technology Co., Ltd., Shunde District, Foshan City Technical Supervision Standards and Coding Institute, Jiangsu Dongfang Filter Bag Co., Ltd., China Textile Standards Inspection and Certification Co., Ltd., Fujian Nanfang Co., Ltd. Ren Company, Jiangsu Lantian Environmental Protection Group Co., Ltd., Shenzhen Fanguo Material Technology Co., Ltd., Guangzhou Inspection and Certification Group Limited Company, Xiamen Sanwei Silk Environmental Protection Co., Ltd., Zhejiang Hongsheng Environmental Protection Technology Group Co., Ltd., China Industrial Textile Industry Association. The main drafters of this standard. Wang Xiangqin, Zhu Ruizhang, Liu Feifei, Li Yuhao, Zhang Peng, Wu Gang, Li Chun, Qiu Chunhu, Cai Jianbo, Zhang Xudong, Mao Guorong, Hou Weili, Cai Weilong, Li Gang, He Jianxun. Determination of the most easily penetrated particle size for textile filtration performance

1 Scope

This standard specifies the test method for the most easily penetrated particle size and filtration efficiency of textiles. This standard applies to all types of air filtration fabrics and their products.

2 Normative references

The following documents are essential for the application of this document. For dated references, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB/T 6682 Analytical laboratory water specifications and test methods

3 terms and definitions

The following terms and definitions apply to this document. 3.1 Filtrationefficiency The difference between the aerosol concentration before and after the textile filtration and the aerosol concentration before the filtration reflects the ability of the textile to capture particulate matter. 3.2 Particulate matter Solid or liquid particulate matter in the air. 3.3 Filtration resistance Static pressure difference between the upstream and downstream of the textile under certain test wind speed or volume. 3.4 Particle number concentration The amount of particulate matter per unit volume of gas (air). 3.5 Minimum filtration efficiency The efficiency corresponding to the lowest point of the textile particle size counting efficiency curve at a certain gas flow. 3.6 Most easily penetrated particle size mostpenetratingparticlesize; MPPS The size of the particles that most easily penetrate the textile filter. Note. The most easily penetrated particle size is the particle size corresponding to the lowest point of the particle size counting efficiency curve under certain test conditions.

4 Test principle

Aerosol generator and differential electromobility analyzer to produce aerosols of a certain particle size, using aerosols as particles in simulated environments Test dust source. After the aerosol is filtered by the sample, the aerosol before and after the sample is collected, and measured by a condensing particle counter ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 38398-2019_English be delivered?

Answer: Upon your order, we will start to translate GB/T 38398-2019_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 38398-2019_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 38398-2019_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.