Chapter 3 of this standard is mandatory, and the rest are recommended. The "Hygiene Standard for Design of Industrial Enterprises" (TJ 36-79) is divided into two standards after revision: Hygiene Standard for Design of Industrial Enterprises and Occupational Exposure Limits for Hazardous Factors in the Workplace. This standard is revised and formulated based on the physical and chemical properties of occupational hazardous substances, domestic and foreign toxicology and on-site labor hygiene or occupational epidemiological survey data, and with reference to the occupational exposure limits and their formulation basis in the United States, Germany, the former Soviet Union, Japan and other countries. It is a hygiene standard used for industrial enterprise design and preventive and regular supervision and monitoring. GBZ 2-2002 Occupational Exposure Limits for Hazardous Factors in the Workplace GBZ2-2002 Standard Download Decompression Password: www.bzxz.net

Occupational exposure limits for harmful factors in the workplace GBZ2—2002
All clauses except Chapter 2 of this standard are mandatory. The revised "Hygiene Standard for Industrial Enterprise Design" (TJ3679) is divided into two standards: Hygiene Standard for Industrial Enterprise Design and Occupational Exposure Limits for Harmful Factors in the Workplace. This standard is revised and formulated based on the physical and chemical properties of occupational hazardous substances, domestic and foreign toxicology and on-site labor hygiene or occupational epidemiological survey data, and with reference to occupational exposure limits and their formulation basis in countries such as the United States, Germany, the former Soviet Union, and Japan. It is a hygiene standard used for industrial enterprise design, preventive and regular supervision and monitoring. Compared with TJ36-79, this standard has the following changes: 1. It is divided into two standards
2. The standard values ​​of 111 toxic substances and 9 dusts have been revised 3. 119 national standards promulgated later have been included
119 standards have been added
Appendix A of this standard is the appendix of the standard
This standard is proposed and managed by the Ministry of Health of the People's Republic of China This standard is approved by the Ministry of Health of the People's Republic of China The drafting units of this standard are: China Center for Disease Control and Prevention, School of Public Health of Fudan University, Shanghai Center for Disease Control and Prevention, Beijing Center for Disease Control and Prevention, School of Public Health of Harbin Medical University, Tongji School of Public Health of Huazhong University of Science and Technology.
The main drafters of this standard are: Wu Wei, Lü Boqin, Liang Youxin, Meng Deshan, Gu Jingyu, Gang Baoqi, Fu Weizu, Yang Lei, Yu Yongzhong, Yu Dongmei, Pang Yingfa, Cheng Xiurong The Ministry of Health of the People's Republic of China is responsible for interpreting this standard. Original standards: GB38691983, GB/T42001997, GB8773~87801988, GB10328~10333-1989, GB10434~10439—1989, GB11516~11522—1989, GB11524~11532—1989, GB11719~..In case of any inconsistency between GB11726-1989, GB1618216250-1996, GB3869-1997, GB1705217055-1997 and GB18528~18563-2001 and this standard, this standard shall prevail. GB 3869-1997
GB/T4200-1997
GB 8773-1988
GB 8774-1988
GB8775-1988
GB8776-1988
GB 8777-1988
GB 8778-1988
GB 8779-1988
GB8780-1988
GB10328-1989
GB10329-1989
GB 10330-1989
GB10331-1989
GB10332-1989
GB10333-1989
GB 10434-1989
GB10435-1989
GB 10436-1989
GB10437-1989
GB 10438-1989
GB 10439-1989
GB 11516-1989
GB 11517-1989
GB 11518-1989
GB 11519-1989
GB11520-1989
GB11521-1989
GB 11522-1989
GB 11524-1989
GB 11525-1989
GB11526-1989
GB 11527-1989
GB 11528-1989
GB 11529-1989
GB11530-1989
GB 11531-1989
GB 11532-1989
GB11719-1989
GB11720-1989
GB11721-1989
Classification of physical labor intensity
Classification of high temperature work
Sanitary standard for methyl acrylate in workshop airSanitary standard for antimony and its compounds in workshop airSanitary standard for allyl chloride in workshop air
Sanitary standard for methyl methacrylate in workshop airSanitary standard for sulfur hexafluoride in workshop air
Sanitary standard for phosphamide in workshop air
Workshop air Hygienic standard for lithium hydride
Hygienic standard for dimethylacetamide in workshop airHygienic standard for graphite dust in workshop air
Hygienic standard for fur dust in workshop air
Hygienic standard for carbon black dust in workshop airwwW.bzxz.Net
Hygienic standard for perlite dust in workshop airHygienic standard for mica dust in workshop air
Hygienic standard for activated carbon dust in workshop airHygienic standard for local vibration in the workplace
Hygienic standard for laser radiation in the workplace
Hygienic standard for microwave radiation in the workplace
Hygienic standard for ultra-high frequency radiation in the workplace
Health standards for meteorological conditions at underground coal mine excavation sites Health standards for fluorite mixed dust in workshop air Health standards for phosphorus trichloride in workshop air
Health standards for ethylenediamine in workshop air
Health standards for liquefied petroleum gas in workshop air Health standards for resorcinol in workshop air
Health standards for glycidyl methacrylate in workshop air Health standards for vermiculite dust in workshop air
Health standards for titanium dioxide dust in workshop air Health standards for chloroethanol in workshop air
Health standards for acrylamide in workshop air||tt| |Sanitary standard of chlorothalonil in workshop air
Sanitary standard of silicon carbide dust in workshop airSanitary standard of grinding wheel dust in workshop air
Sanitary standard of drill and its oxide in workshop airSanitary standard of trimethylol phosphate in workshop airSanitary standard of copper dust (smoke) in workshop air
Sanitary standard of raffinate oil (50~220℃) in workshop airSanitary standard of solvent gasoline in workshop air
Sanitary standard of trichlorfon in workshop air
Sanitary standard of ethylene oxide in workshop air
GB11722-1989
GB 11723-1989
GB 11724-1989
GB 11725-1989
GB11726-1989
GB 16183-1996
GB 16184-1996
GB16185-1996
GB16186-1996
GB 16187-1996
GB 16188-1996
GB16189-1996
GB16190-1996
GB16191-1996
GB 16192-1996
GB 16193-1996
GB16194-1996
GB16195-1996
GB16196-1996
GB 16197-1996
GB 16198-1996
GB 16199-1996
GB16200-1996
GB16201-1996
GB16202-1996
GB 16203-1996
GB16204-1996
GB16205-1996
GB16206-1996
GB 16207-1996
GB16208-1996
GB 16209-1996
GB16210-1996
GB 16211-1996
GB16212-1996
GB16213-1996
GB16214-1996
GB16215-1996
GB16216-1996
GB16217-1996
GB16218-1996
GB16219-1996
GB16220-1996
GB16221-1996
Hygienic standard for vanadium and its compounds in workshop airWorkshop air 1,Hygienic standards for 2-dichloroethaneHygienic standards for workshop air containing 50%~80% free silica dustHygienic standards for workshop air containing more than 80% free silica dustHygienic standards for aluminum, aluminum oxide, and aluminum alloy dust in workshop airHygienic standards for workshop air
Hygienic standards for sulfuryl fluoride in workshop air
Hygienic standards for Cai in workshop air
Hygienic standards for deltamethrin in workshop air
Hygienic standards for hydrazoic acid and sodium azide in workshop airHygienic standards for omethoate in workshop air
Hygienic standards for isothiocyanate in workshop air
Health standard for ethylene glycol in workshop air
Health standard for trifluoromethyl hypofluorite in workshop airHealth standard for chloromethane in workshop air
Health standard for toluene diisocyanate (TDI) in workshop airHealth standard for welding smoke in workshop air
Health standard for magnesium oxide (smoke) in workshop airHealth standard for condensed silica dust in workshop airHealth standard for wood dust in workshop air
Health standard for cotton dust in workshop air
Health standard for dibutyltin dilaurate in workshop airHealth standard for cypermethrin in workshop air Standard
Health standard of carbon dioxide in workshop air
Health standard of chloroprene in workshop air
Health standard of power frequency electric field in workplace
Health standard of tetrachloroethylene in workshop air
Health standard of chlorpyrifos in workshop air
Health standard of diatomite dust in workshop airHealth standard of marble dust in workshop airHealth standard of polyethylene in workshop air
Health standard of polypropylene in workshop air
Health standard of nickel and its inorganic compounds in workshop airHealth standard of long-acting phosphorus in workshop air||t t||Sanitary standard for nitroglycerin in workshop air
Sanitary standard for acrylic acid in workshop air
Sanitary standard for ethylamine in workshop air
Sanitary standard for phthalic anhydride in workshop airSanitary standard for tin dioxide in workshop air
Sanitary standard for selenium in workshop air
Sanitary standard for dichloromethane in workshop air
Sanitary standard for chloroform in workshop air
Sanitary standard for Beauveria bassiana spores in workshop airSanitary standard for hydrazine in workshop air
GB16222-1996
GB 16223-1996
GB16224-1996
GB16225-1996
GB16226-1996
GB 16227-1996
GB16228-1996
GB16229-1996
GB16230-1996
GB 16231-1996
GB16232-1996
GB 16233-1996
GB16234-1996
GB16235-1996
GB16236-1996
GB 16237-1996
GB16238-1996
GB16239-1996
GB16240-1996
GB16241-1996
GB16242-1996
GB 16243-1996
GB16244-1996
GB16245-1996
GB16246-1996
GB 16247-1996
GB16248-1996
GB16249-1996
GB16250-1996
GB 17052-1997
GB17053-1997
GB17054-1997
GB17055-1997
GB18528-2001
GB18529-2001
GB18530-2001
GB18531-2001
GB18532-20 01
GB18533-2001
GB18534-2001
GB18535-2001
GB18536-2001||GB18537-2001
GB18538-2001
Car Hygienic standard for monomethylhydrazine in workshop air
Hygienic standard for dimethylpyrolyzate in workshop airHygienic standard for dolomite dust in workshop airHygienic standard for respirable silica dust in workshop airHygienic standard for limestone dust in workshop airHygienic standard for mercury in workshop air
Hygienic standard for fluoride in workshop air
Hygienic standard for tungsten in workshop air
Hygienic standard for isopropyl alcohol in workshop air
Hygienic standard for tetrahydrofuran in workshop air
Hygienic standard for gypsum dust in workshop air
Hygienic standard for acetic acid in workshop air
Hygienic standard for isophorone diisocyanate in workshop airHygienic standard for furan in workshop air
Car Hygienic standard for trimethyltrinitramine (RHT) in workshop airHygienic standard for grain dust in workshop air
Hygienic standard for respirable cement dust in workshop airHygienic standard for mulberry silk dust in workshop air
Hygienic standard for rare earth dust in workshop air
Hygienic standard for asbestos fiber in workshop air
Hygienic standard for p-nitroaniline in workshop airHygienic standard for dibutyl phthalate in workshop airHygienic standard for hemp dust (flax, jute and ramie) in workshop airHygienic standard for oxalic acid in workshop air
Hygienic standard for dimethyl sulfate in workshop airHygienic standard for zinc chloride (smoke) in workshop air
Hygienic standard for respirable coal dust in workplace air Hygienic standard for cresol in air
Hygienic standard for pine in workshop air
Hygienic standard for rock wool dust in workshop air
Hygienic standard for sodium carbonate in workshop air
Hygienic standard for coke oven emissions in workshop airHygienic standard for arsenic and its inorganic compounds in workshop airOccupational exposure limit for ultraviolet radiation in the workplaceOccupational exposure limit for acetaldehyde in workshop air
Occupational exposure limit for carbon fiber dust in workshop airOccupational exposure limit for phosphoric acid in workshop air
Occupational exposure limit for polyacrylonitrile fiber dust in workshop airOccupational exposure limit for polymethyl polyphenyl polyisocyanate in workshop airOccupational exposure limit for butanone in workshop air
Occupational exposure limits of bentonite dust in air Occupational exposure limits of phosphorus oxychloride in workshop air Occupational exposure limits of maleic anhydride in workshop air Occupational exposure limits of ethanolamine in workshop air GB18539-2001
GB18540-2001
GB18541-2001
GB18542-2001
GB18543-2001
GB18544-2001
GB18545-2001
GB18546-2001
GB18547-2001
GB18548-2001|| tt||GB18549-2001
GB18550-2001
GB18551-2001
GB18553-2001
GB18554-2001
GB18555-2001
GB18 556-2001
GB18557-2001
GB18558-2001
GB18559-2001
GB18560-2001
GB18561-2001
GB18562-2001| |tt||GB18563-2001
Occupational exposure limits of propylene oxide in workshop airOccupational exposure limits of calcium oxide in workshop airOccupational exposure limits of phenolic resin dust in workshop airOccupational exposure limits of zeolite dust in workshop airOccupational exposure limits of hydrogen aldehyde in workshop airOccupational exposure limits of barite dust in workshop airOccupational exposure limits of glass fiber reinforced plastic dust in workshop airOccupational exposure limits of wollastonite dust in workshop airOccupational exposure limits of dioctyltin in workshop airOccupational exposure limits of dichlorobenzene in workshop airOccupational exposure limits of 2-ethoxyethanol in workshop airOccupational exposure limits of acetic anhydride in workshop air
Occupational exposure limits of acetone cyanohydrin in workshop air Occupational exposure limit of petroleum asphalt (smoke) in gasOccupational exposure limit of carbon dioxide in workshop air in plateau areasOccupational exposure limit of high-frequency electromagnetic field in the workplaceOccupational exposure limit of norgestrel in workshop airOccupational exposure limit of acephate in workshop airOccupational exposure limit of precipitated silica (white carbon black) dust in workshop airOccupational exposure limit of trinitrotoluene in workshop airOccupational exposure limit of urea in workshop air
Occupational exposure limit of 1,1,1-trichloroethane in workshop airOccupational exposure limit of calcium cyanamide (lime nitrogen) in workshop airOccupational exposure limit of polyvinyl chloride dust in workshop air1Scope
Occupational exposure limit of hazardous agents in the workplaceOccupational ExposureLimit for Hazardous Agents in the WorkplaceGBZ2-2002
This standard specifies the occupational exposure limit of hazardous agents in the workplace. This standard applies to all types of employers that produce, use or generate hazardous agents. 2 Normative references
The clauses in the following documents become the clauses of this standard through reference in this standard. For all references with dates, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, the parties who reach an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For all undated references, the latest versions are applicable to this standard
GBJ19-87 Design Specification for Heating, Ventilation and Air Conditioning in Industrial Enterprises GB934-89 Test Specification for Meteorological Conditions in High Temperature Working Environments GBZ1-2002 Hygiene Standard for Design of Industrial Enterprises 3 Definitions
This standard adopts the following definitions:
3.1 Occupational Exposure Limit (OEL) is the exposure limit value of occupational hazards, which refers to the permissible exposure level that workers can repeatedly contact for a long time in the course of their occupational activities without causing acute or chronic harmful health effects on the body. Occupational exposure limits for chemical factors can be divided into three categories: time-weighted average permissible concentration, maximum permissible concentration and short-term exposure permissible concentration.
3.1.1 Permissible concentration-Time Weighted Average (PC-TWA) refers to the average permissible exposure level for an 8-hour workday with time as the weight. 3.1.2 Maximum Permissible Concentration (MAC) refers to the concentration of toxic chemicals that should not be exceeded at any time in the workplace, during a workday. 3.1.3 Permissible concentration-Short Term Exposure Limit (PC-STEL) refers to the 15-minute time-weighted average permissible exposure level that should not be exceeded for any single exposure during a workday. 3.2 Workplace refers to all places where workers carry out their occupational activities. 3.3 Worksite refers to the place where workers often or regularly stay to carry out their occupational activities or production management processes.
4 Hygiene requirements
4.1 Permissible concentrations of toxic substances in the air of the workplace Table 1 Permissible concentrations of toxic substances in the air of the workplace Time addition
Chinese name CAS No
English name
Maximum permissible concentration
(mg/m3)
Weighted average
Permissible concentration
(mg/m3)
*Short time
Contact permissible concentration
(mg/m3)
Chinese name CAS No.
(86-88-4)
(7664-41-7)
2-aminopyridine
(skin)
504-29-0
ammonium sulfamate
7773-06-0
cyanamide
420-04-2
Octot Today
2691-41-0
Crotonaldehyde
4170-30-3
Chlorothalonil
1897-45-6
Fenthion (skin)
55-38-9
Benzene (skin)
71-43-2
Aniline (skin)||t t||62-53-3
Phenyl ether (diphenyl ether)
101-84-8
Benzene thion (skin)
2104-64-5
Styrene (skin)
100-42-5
110-86-1
Benzyl chloride
100-44-7
71-23-8
79-09-4
67-64-1
Acetone cyanohydrin
(calculated by CN)
Ammonia
English name
2-Aminopyridine (skin)
Ammonium sulfamate
Cyanamide
Octogen
Crotonaldehyde
Chlorothalonile
Fenthion(skin)
Benzene(skin)
Aniline(skin)
Phenyl ether
EPN(skin)
Styene(skin)
Pyridine
Benzylchloride
Propyl alcohol
Propionic Acid
Acetone
Acetonecyanohydrin(skin)
Maximum
permissible
concentration
(mg/m3)
.Time
weighted
permissible
concentration
(mg/m3)
*Short
contact
permissible
concentration
(mg/m3)
Chinese nameCAS No
(skin)
75-86-5
Propylene alcohol (skin)
107-18-6
Acrylonitrile (skin)
107-13-1
Acrolein
107-02-8
Acrylic acid (skin)
79-10-7
Methyl acrylate (skin)
96-33-3
n-Butyl acrylate
141-32-2
Acrylamide (skin)
79-06-1
144-62-7
Raffinate oil
60~220℃||t t||10028-15-6
DDT
50-29-3
Dichlorvos
52-68-6
Diuron
330-54-1
Bismuth telluride (calculated as Bi2Te3)
1304-82-1
7553-56-2
75-47-8
Methyl iodide (skin)
74-88-4
Azoic acid and sodium azide
7782-79-8; 26628-22-8
Azoic acid vapor
English name
Allyl alcohol(skin)
Acrylonitrile(skin)
Acrolein
Acrylic acid(skin)
Methyl acrylate(skin)
n-Butyl acrylate
Acrylamide(skin)
Oxalicacid
Raffinate (60~220℃)
Dichlorodiphenyltrichloro ethane(DDT)Trichlorfon
Diuron
BismuthtellurideasBizTe3
Iodine
Iodoform
Methyl iodide(skin)
Hydrazoic acid and sodium azideHydrazoic acid vapor
Maximum
permissible
concentration
(mg/m3)
.Time
weighted
permissible
contact
permissible
(mg/m3)
Chinese nameCASNo
Sodium azide
71-36- 3
1,3-Butadiene
106-99-0
123-72-8
78-93-3
25167-67-3
Terephthalic acid
100-21-0
Parathion (skin)
56-38-2
P-tert-butyltoluene
98-51-1
(skin)
p-Nitroaniline
100-01-6
p-Nitrochlorobenzene/Dinitrochloro
Benzene (skin)
100-00-5/25567-67-3
Multiple methyl polyphenyl polyisocyanates
57029-46-6
Diphenylamine
122-39-4
Diphenylmethane diisocyanate
10 1-68-8
Dipropylene glycol methyl ether (peel)
34590-94-8
2-N-dibutylaminoethanol (peel)
102-81-8
Dioxane (peel)
123-91-1
Difluorochloromethane
75-45-6
Dimethylamine
124-40-3
sodium azide
Butyl alcohol
1,3-Butadiene
Butyladehyde
English name
Methyl ethylketone
Butylene
Terephthalic acid
Parathion(skin)
p-Tert-butyltoluene
p-Nitroaniline(skin)
p-Nitrochlorobenzene/
Dini trochlorobenzene(skin)
Polymetyhlenepolyphenyl
isocyanate(PMPPI)
Diphenylamine
Diphenylmethane diisocyanateDipropyleneglycolmethylether(skin)2-N-Dibutylaminoethanol(skin)1,1,4-Dioxane(skin)
Chlorodifluoromethane
Dimethylamine
Maximum tolerance
Permissible concentration
(mg/m3)
.Time-weighted average allowable concentration (mg/m3) * Shortest time contact allowable concentration (mg/m3) Chinese name CAS No. Xylene (all isomers) 1330-20-7; 95-47-6; 108-38-3 Xylidine (skin) 121-69- 7
1,3-Dimethylbutyl acetate
(Sec-hexyl acetate)
108-84-9
Dimethyldichlorosilane
75-78-5
Dimethylformamide (peel)
68-12-2
3,3-Dimethylbenzidine (peel)
119-93-7
Dimethylacetamide (peel)
127-19-5
Di Polycyclopentadiene
77-73-6
Carbon disulfide (skin)
75-15-0
1,1-Dichloro-1-nitroethane
594-72-9
Dichlorobenzene
p-Dichlorobenzene (106-46-7)
o-Dichlorobenzene (95-50-1)
1,3-Dichloropropanol (skin)
96-23-1
1,2-Dichloropropane| |tt||78-87-5
1,3-Dichloropropylene (skin)
542-75-6
Dichloroacetylene
7572-29-4
Dichlorodifluoromethane
75-71-8
Dichloromethane
75-09-2
1,2-Dichloroethane
107-06-2
English name
Xylene(all isomers)
Dimethylanilne(skin)
1,3-Dimethylbutylacetate
(sec-hexylacetate)
Dimethyl dichlorosilane
Dimethylformamide(DMF)(skin) 3,3-Dimethylbenzidine(skin)Dimethyl acetamide(skin)
Dicyclopentadiene
Carbon disulfide(skin)
1,1-Dichloro-1-nitroethane
Dichlorobenzene
p-Dichlorobenzene
o-Dichlo robenzene
1,3-Dichloropropanol(skin)
1,2-Dichloropropane
1,3-Dichloropropene(skin)
Dic hloroacetylene
Dichlorodifluoromethane
Dichloromethane
1,2-Dichloroethane
Maximum
allowable
(mg/m3)
Time-weighted
Weighted average
Allowable concentration
(mg/m3)
Shortest
Contact
Allowable concentration
(mg/m3)
Chinese nameCAS No.
1,2-Dichloroethylene
540-59-0
Diglycidyl ether
2238-07-5
Dinitrobenzene (all isomers) (skin)
582-29-0:
100-25-4
99-65-0;
Dinitrotoluene (skin)
25321 -14-6
4,6-Dinitrobenzoic acid
(skin)
534-52-1
Nitrogen dioxide
10102-44-0
Sulfur dioxide
7446-09-5
Chlorine dioxide
10049-04-4
Carbon dioxide
124-38-9
Tin dioxide (calculated as Sn)
1332-29-2
2-Diethylaminoethanol (skin)
100-37-8
Diethylenetriamine (skin)
111-40-0
Diethyl ketone
96-22-0
Divinylbenzene
1321-74-0
Diisobutyl ketone
108-83-8
Toluene diisocyanate (TDI)
584-84-9
Dibutyltin dilaurate (skin)
77-58-7
Vanadium and its compounds (calculated as V)
7440-62-6
English name
1,2-Dichloroethylene
Diglycidyl ether
Dinitrobenzene(all isomers)(skin)Dinitrotoluene(skin)
4,6-Dinitro-o-cresol(skin)
Nitrogen dioxide
Sulfurdioxide
Chlorine dioxide
carbon dioxide
Tin dioxdie, as Sn | V
Maximum
permissible
(mg/m3)
.Time
weighted
permissible
(mg/m3)
*Shortest
Contact
permissible
(mg/m3)
Chinese nameCAS No.
Vanadium pentoxide smoke
Vanadium iron alloy dust
110-00-9
Hydrogen fluoride (calculated as F)
7664-39-3
Fluoride (excluding hydrogen fluoride)
(calculated as F)
Zirconium and its compounds
(calculated as Zr
7440-67-7
Cadmium and its compounds (calculated as Cd
7440-43-9
Mercury (7439-97-6)
Metallic mercury (vapor)
Organic mercury compounds (skin)
Cobalt and its oxides
7440-48-4
75-44-5||tt| |Decaborane (skin)
17702-41-9
Benzoyl peroxide
94-36-0
Hydrogen peroxide
7722-84-1
Cyclohexylamine
108-91-8
Cyclohexanol (skin)
108-93-0
Cyclohexanone (skin)
108-94-1
Cyclohexane
110-82-7
Propylene oxide
75-56-9
English name
Vanadiumpentoxidefume, dust
Ferrovanadium alloy dust
Hydrogen fluoride,as F
Fluorides(except HF),as F
Zirconiumandcompounds,asZi
Cadmiumandcompounds,asCd
Mercury
Element mercury(vapor)
Mercury organic
compounds(skin)as
Cobalt and oxides,as Co
Phosgene
Decaborane(skin)
Benzoylperoxide
Hydrogenperoxide
Cyclohexylamine
Cyclohexanol(skin)
Cyclohexanone(skin)
Cyclohexane
Propylene Oxide
Maximum
allowable
concentration
(mg/m3)
Time
weighted average
allowable concentration
(mg/m3)
*Short-time
contact
allowable concentration
(mg/m3)
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