|
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 | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 4742-2017 | English | 149 |
Add to Cart
|
2 days [Need to translate]
|
Technical requirements for environmental friendly device of cotton classing
| Valid |
SN/T 4742-2017
|
PDF similar to SN/T 4742-2017
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).
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+ countriesQuestion 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 [email protected]. 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.
|