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SN/T 4742-2017 English PDF

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US$149.00 · In stock
Delivery: <= 2 days. True-PDF full-copy in English will be manually translated and delivered via email.
SN/T 4742-2017: Technical requirements for environmental friendly device of cotton classing
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 4742-2017	149	Add to Cart	2 days	Technical requirements for environmental friendly device of cotton classing	Valid

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Basic data

Standard ID: SN/T 4742-2017 (SN/T4742-2017)
Description (Translated English): Technical requirements for environmental friendly device of cotton classing
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: W10
Word Count Estimation: 5,580
Date of Issue: 2017-05-12
Date of Implementation: 2017-12-01
Quoted Standard: GB/T 13786; GB 50736-2012; GBZ 2.1; GBZ 2.2; GBZ 159; GBZ/T 189.8; GBZ/T 192.1
Regulation (derived from): State-Quality-Inspection-Accreditation (2017) 228
Issuing agency(ies): General Administration of Customs
Summary: This standard stipulates the technical requirements for the appearance structure, work surface design, air circulation mode and flow rate, dust removal effect, noise control and dust recovery of cotton grading and environmental protection classifier. This standard applies to the development, design, production and use of ventilated dust-removing cotton grading and environmental protection devices.

SN/T 4742-2017: Technical requirements for environmental friendly device of cotton classing

---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.
Technical requirements for environmental friendly device of cotton classing People's Republic of China entry and exit inspection and quarantine industry standards Technical requirements for cotton grading and environmental protection devices Released on.2017-05-12 2017-12-01 implementation People's Republic The General Administration of Quality Supervision, Inspection and Quarantine issued

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed and managed by the National Certification and Accreditation Administration. This standard was drafted. Hebei Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China, Guangdong Entry-Exit Inspection and Quarantine Bureau, People's Republic of China Huanghua Port Entry-Exit Inspection and Quarantine Bureau, Jiangsu Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China, the People's Republic of China Entry and Exit Inspection and Quarantine Bureau of Zhangjiagang, Shandong Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China, and Zhanjiang Exit and Entry Inspection of the People's Republic of China Quarantine Bureau. The main drafters of this standard. Lian Sumei, Li Shurong, Chen Baoxi, Dong Shaowei, Shen Yi, Li Jing, Wang Dong, Li Qing, Li Peng, Hao Dongsheng, Li Yucai. Technical requirements for cotton grading and environmental protection devices

1 Scope

This standard specifies the appearance structure, work surface design, air circulation mode, flow rate, dust removal effect of cotton grading and environmental protection classifier. Technical requirements such as noise control and dust recovery. This standard applies to the development, design, production and use of ventilated dust-removing cotton grading environmental protection devices.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only the dated version applies to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. Simulated neon lighting of GB/T 13786 cotton classification room GB 50736-2012 Code for design of heating, ventilation and air conditioning for civil buildings GBZ 2.1 Occupational exposure limits for workplace hazards Part 1. Chemically harmful factors GBZ 2.2 Occupational exposure limits for workplace hazards Part 2. Physical factors GBZ 159 Sampling specification for monitoring of hazardous substances in the workplace air GBZ/T 189.8 Physical measurement of workplaces - Part 8. Noise GBZ/T 192.1 Determination of dust in workplace air - Part 1. Total dust concentration

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Total dust totaldust Dust that can enter the entire respiratory tract (nose, pharynx and larynx, thoracic bronchus, bronchioles and alveoli), referred to as total dust. Technically used total powder The dust sampler measures all dust in the breathing zone according to standard methods. 3.2 Time-weighted average allowable concentration permissibleconcentration-timeweightedaverage; PC-TWA The average allowable contact concentration for 8h working days and 40h working weeks specified by time. 3.3 Overrun multiple excursionlimits In the case of a weighted average allowable concentration of 8h, the concentration of any short-term (15min) contact should not exceed The multiple of PC-TWA. 3.4 Primary filter primaryfilter A filter for filtering dust particles of 5 μm or more. 3.5 Steady-state noise steadynoise During the observation time, when the sound level meter "slow block" dynamic characteristics are measured, the sound level fluctuates by < 3dB (A). ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of SN/T 4742-2017_English be delivered?

Answer: Upon your order, we will start to translate SN/T 4742-2017_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 2 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of SN/T 4742-2017_English with my colleagues?

Answer: Yes. The purchased PDF of SN/T 4742-2017_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.