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GB/T 27946-2011: Limited value of hazardous substance in the air of heat treatment working place
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 27946-2011 | English | 259 |
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Limited value of hazardous substance in the air of heat treatment working place
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GB/T 27946-2011
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Basic data | Standard ID | GB/T 27946-2011 (GB/T27946-2011) | | Description (Translated English) | Limited value of hazardous substance in the air of heat treatment working place | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J36 | | Classification of International Standard | 25.200 | | Word Count Estimation | 11,112 | | Date of Issue | 2011-12-30 | | Date of Implementation | 2012-10-01 | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 23 of 2011 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the treatment of harmful substances in the air of workplace terms and definitions, technical requirements and so on. This standard applies to heat treatment production process, the heat treatment of harmful substances in the air of workplace occupational exposure limits. | GB/T 27946-2011: Limited value of hazardous substance in the air of heat treatment working place---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.
Limited value of hazardous substance in the air of heat treatment working place
ICS 25.200
J36
National Standards of People's Republic of China
Heat treatment of hazardous substances in workplace air limit
Issued on. 2011-12-30
2012-10-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard by the National Standardization Technical Committee heat treatment (SAC/TC75) and focal points.
Drafting of this standard. Shanghai Institute of Machinery Manufacturing Technology Co., Ltd., Anhui Ou Sa Health Laboratory Technology Co.,
On Ousa Environmental Resources Management Consulting Co., Ltd., Beijing Institute of Electrical.
Participated in the drafting of this standard. Guangdong Siltronic Metal Technology Co., Ltd. Xi'an Follett heat treatment, heat treatment Tianjin Research
Limited.
The main drafters of this standard. Cai red leaves Jian, Tian Jing Mei, Xu Yueming, Wang Xiaobing, Lu Jun, Sun Xiaodong, Wang Zhiqiang, any praise.
Participate drafters of this standard. Su Yuhui, Wanggui Mao, Yang Hongfei, Song Baojing, Xingzhi Song.
Heat treatment of hazardous substances in workplace air limit
1 Scope
This standard specifies the terms and definitions, technical requirements for heat treatment in the workplace and other harmful substances in the air.
This standard applies to the production process of heat treatment, heat treatment in the workplace air of harmful substances in the occupational exposure limits.
2 Terms and definitions
The following terms and definitions apply to this document.
2.1
Hazardous substances hazardoussubstance
Gases in the air, dust, smoke and fog, etc., respiratory or contact with the skin, eyes, and via a substance harmful to human health.
2.2
Concentrationofhazardoussubstance concentration of harmful substances
Contained in the mass per unit volume of harmful substances in workplace air.
2.3
Workplace workplace
Laborers with professional activities of all locations.
2.4
Occupational exposure limits occupationalexposurelimits, OELs
Repeated exposure of workers in professional activities and long-term process, the vast majority of people who are exposed does not cause harmful health effects Permissible Exposure
Level.
2.5
Time weighted average allowable concentration permissibleconcentration-timeweightedaverage, PC-TWA
Time-weights specified 8h workday, Permissible Exposure 40h average work week.
2.6
Short-term exposure allowable concentration permissibleconcentration-shorttermexposurelimit, PC-STEL
Allowable concentration short time (15min) contact in compliance with the PC-TWA premise.
2.7
Maximum allowable concentration maximumalowableconcentration, MAC
In the workplace, a working day, any time can not exceed harmful substances concentration.
2.8
Total dust totaldust
You can enter the respiratory tract (nose, pharynx and larynx, chest bronchi, bronchioles and alveoli) in the dust. Technically the total dust sampler according to standard
Registration of all dust in the breathing zone measured.
2.9
Respirable dust respirabledust
Dust particles can enter the alveoli by respirable dust standard method collected, which were 7.07μm aerodynamic diameter with
, The sampling efficiency of dust particles of aerodynamic diameter 5μm is 50% of the dust.
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