当前位置: 首页 >> 危险化学品手册 >> 附录G 1989年废止的OSHA PELs

附录G 

1989年废止的OSHA PELs

英文名称

中文名称

限值

Acetaldehyde

乙醛

TWA 100 ppm (180 mg/m3)
ST 150 ppm (270 mg/m3)

Acetic anhydride

乙酸酐

C 5 ppm (20 mg/m3)

Acetone

丙酮

TWA 750 ppm (1800 mg/m3)
ST 1000 ppm (2400 mg/m3)

Acetonitrile

乙腈

TWA 40 ppm (70 mg/m3)
ST 60 ppm (105 mg/m3)

Acetylsalicyclic acid

乙酰水杨酸

TWA 5 mg/m3

Acrolein

丙烯醛

TWA 0.1 ppm (0.25 mg/m3)
ST 0.3 ppm (0.8 mg/m3)

Acrylamide

丙烯酰胺

TWA 0.03 mg/m3[]

Acrylic acid

丙烯酸

TWA 10 ppm (30 mg/m3)[]

Allyl alcohol

烯丙醇

TWA 2 ppm (5 mg/m3)
ST 4 ppm (10 mg/m3)[
]

Allyl chloride

烯丙基氯

TWA 1 ppm (3 mg/m3)
ST 2 ppm (6 mg/m3)

Allyl glycidyl ether

烯丙基缩水甘油醚

TWA 5 ppm (22 mg/m3)
ST 10 ppm (44 mg/m3)

Allyl propyl disulfide

烯丙基丙基二硫化物

TWA 2 ppm (12 mg/m3)
ST 3 ppm (18 mg/m3)

α-Alumina

α-氧化铝

TWA 10 mg/m3 (总颗粒物)
TWA 5 mg/m3 (
呼吸性颗粒物)

Aluminum (pyro powders & welding fumes, as Al)

铝(热解铝粉和焊接烟,按铝计)

TWA 5 mg/m3

Aluminum (soluble salts & alkyls, as Al)

铝(可溶性盐及烷基铝合物,按铝计)

TWA 2 mg/m3

Amitrole

氨基三唑

TWA 0.2 mg/m3

Ammonia

ST 35 ppm (27 mg/m3)

Ammonium chloride fume

氯化铵烟

TWA 10 mg/m3
ST 20 mg/m3

Ammonium sulfamate

氨基磺酸铵

TWA 10 mg/m3 (总颗粒物)
TWA 5 mg/m3 (
呼吸性颗粒物)

Aniline (and homologs)

苯胺及其同系物

TWA 2 ppm (8 mg/m3)[]

Atrazine

阿特拉津

TWA 5 mg/m3

Barium sulfate

硫酸钡

TWA 10 mg/m3 (总颗粒物)
TWA 5 mg/m3 (
呼吸性颗粒物)

Benomyl

苯菌灵

TWA 10 mg/m3 (总颗粒物)
TWA 5 mg/m3 (
呼吸性颗粒物)

Benzenethiol

()硫醇

TWA 0.5 ppm (2 mg/m3)

Bismuth telluride (doped with selenium sulfide, as Bi2Te3)

碲化铋(混有硫化硒,按Bi2Te3计)

TWA 5 mg/m3

Borates, tetra, sodium salts (Anhydrous)

四硼酸钠(无水)

TWA 10 mg/m3

Borates, tetra, sodium salts (Decahydrate)

十水四硼酸钠

TWA 10 mg/m3

Borates, tetra, sodium salts (Pentahydrate)

五水四硼酸钠

TWA 10 mg/m3

Boron oxide

氧化硼

TWA 10 mg/m3

Boron tribromide

三溴化硼

C 1 ppm (10 mg/m3)

Bromacil

除草定

TWA 1 ppm (10 mg/m3)

Bromine

TWA 0.1 ppm (0.7 mg/m3)
ST 0.3 ppm (2 mg/m3)

Bromine pentafluoride

五氟化溴

TWA 0.1 ppm (0.7 mg/m3)

n-Butane

正丁烷

TWA 800 ppm (1900 mg/m3)

2-Butanone

2-丁酮

TWA 200 ppm (590 mg/m3)
ST 300 ppm (885 mg/m3)

2-Butoxyethanol

2-丁氧乙醇

TWA 25 ppm (120 mg/m3)[]

n-Butyl acetate

乙酸正丁酯

TWA 150 ppm (710 mg/m3)
ST 200 ppm (950 mg/m3)

Butyl acrylate

丙烯酸丁酯

TWA 10 ppm (55 mg/m3)

n-Butyl alcohol

正丁醇

C 50 ppm (150 mg/m3)[]

sec-Butyl alcohol

仲丁醇

TWA 100 ppm (305 mg/m3)

tert-Butyl alcohol

叔丁醇

TWA 100 ppm (300 mg/m3)
ST 150 ppm (450 mg/m3)

n-Butyl glycidyl ether

正丁基缩水甘油醚

TWA 25 ppm (135 mg/m3)

n-Butyl lactate

乳酸正丁酯

TWA 5 ppm (25 mg/m3)

n-Butyl mercaptan

正丁基硫醇

TWA 0.5 ppm (1.5 mg/m3)

o-sec-Butylphenol

邻仲丁基苯酚

TWA 5 ppm (30 mg/m3)[]

p-tert- Butyltoluene

对叔丁基甲苯

TWA 10 ppm (60 mg/m3)
ST 20 ppm (120 mg/m3)

Calcium cyanamide

氰氨化钙

TWA 0.5 mg/m3

Caprolactam

己内酰胺

TWA 1 mg/m3
ST 3 mg/m3

蒸气

TWA 5 ppm (20 mg/m3)
ST 10 ppm (40 mg/m3)

Captafol

敌菌丹

TWA 0.1 mg/m3

Captan

克菌丹

TWA 5 mg/m3

Carbofuran

克百威

TWA 0.1 mg/m3

Carbon dioxide

二氧化碳

TWA 10,000 ppm (18,000 mg/m3)
ST 30,000 ppm (54,000 mg/m3)

Carbon disulfide

二硫化碳

TWA 4 ppm (12 mg/m3)
ST 12 ppm (36 mg/m3)[
]

Carbon monoxide

一氧化碳

TWA 35 ppm (40 mg/m3)
C 200 ppm (229 mg/m3)

Carbon tetrabromide

四溴化碳

TWA 0.1 ppm (1.4 mg/m3)
ST 0.3 ppm (4 mg/m3)

Carbon tetrachloride

四氯化碳

TWA 2 ppm (12.6 mg/m3)

Carbonyl fluoride

羰基氟

TWA 2 ppm (5 mg/m3)
ST 5 ppm (15 mg/m3)

Catechol

儿茶酚

TWA 5 ppm (20 mg/m3)[]

Cesium hydroxide

氢氧化铯

TWA 2 mg/m3

Chlorinated camphene

氯化莰

TWA 0.5 mg/m3
ST 1 mg/m3[
]

Chlorine

TWA 0.5 ppm (1.5 mg/m3)
ST 1 ppm (3 mg/m3)

Chlorine dioxide

二氧化氯

TWA 0.1 ppm (0.3 mg/m3)
ST 0.3 ppm (0.9 mg/m3)

Chloroacetyl chloride

氯乙酰氯

TWA 0.05 ppm (0.2 mg/m3)

o-Chlorobenzylidene malononitrile

邻氯苄叉丙二腈

C 0.05 ppm (0.4 mg/m3)[]

Chlorodifluoromethane

一氯二氟甲烷

TWA 1000 ppm (3500 mg/m3)

Chloroform

氯仿

TWA 2 ppm (9.78 mg/m3)

1-Chloro-1-nitropropane

1--1-硝基丙烷

TWA 2 ppm (10 mg/m3)

Chloropentafluoroethane

一氯五氟乙烷

TWA 1000 ppm (6320 mg/m3)

β-Chloroprene

β-氯丁二烯

TWA 10 ppm (35 mg/m3)[]

o-Chlorostyrene

邻氯苯乙烯

TWA 50 ppm (285 mg/m3)
ST 75 ppm (428 mg/m3)

o-Chlorotoluene

邻氯甲苯

TWA 50 ppm (250 mg/m3)

Chlorpyrifos

毒死蜱

TWA 0.2 mg/m3[]

Coal dust

煤尘

TWA 2 mg/m3 (<5% SiO2)( 呼吸性尘)
TWA 0.1 mg/m3 (
³5% SiO2) (呼吸性石英)

Cobalt metal dust & fume (as Co)

钴金属烟和尘(按钴计)

TWA 0.05 mg/m3

Cobalt carbonyl (as Co)

羰基钴(按钴计)

TWA 0.1 mg/m3

Cobalt hydrocarbonyl (as Co)

羰基氢钴(按钴计)

TWA 0.1 mg/m3

Crag® herbicide

Crag®除草剂

TWA 10 mg/m3 (总颗粒物)
TWA 5 mg/m3 (
呼吸性颗粒物)

Crufomate

育畜磷

TWA 5 mg/m3

Cyanamide

氨基腈

TWA 2 mg/m3

Cyanogen

TWA 10 ppm (20 mg/m3)

Cyanogen chloride

氯化氰

C 0.3 ppm (0.6 mg/m3)

Cyclohexanol

环己醇

TWA 50 ppm (200 mg/m3)[]

Cyclohexanone

环己酮

TWA 25 ppm (100 mg/m3)[]

Cyclohexylamine

环己胺

TWA 10 ppm (40 mg/m3)

Cyclonite

三次甲基三硝基胺

TWA 1.5 mg/m3[]

Cyclopentane

环戊烷

TWA 600 ppm (1720 mg/m3)

Cyhexatin

环己锡

TWA 5 mg/m3

Decaborane

十硼烷

TWA 0.3 mg/m3 (0.05 ppm)
ST 0.9 mg/m3 (0.15 ppm)[
]

Diazinon®

二嗪农®

TWA 0.1 mg/m3 []

2-N-Dibutylaminoethanol

2-N-二丁氨基乙醇

TWA 2 ppm (14 mg/m3)

Dibutyl phosphate

磷酸二丁酯

TWA 1 ppm (5 mg/m3)
ST 2 ppm (10 mg/m3)

Dichloroacetylene

二氯代乙炔

C 0.1 ppm (0.4 mg/m3)

p-Dichlorobenzene

对二氯苯

TWA 75 ppm (450 mg/m3)
ST 110 ppm (675 mg/m3)

1,3-Dichloro-5,5-dimethylhydantoin

1,3-二氯-5,5-二甲基乙内酰脲

TWA 0.2 mg/m3
ST 0.4 mg/m3

Dichloroethyl ether

二氯乙醚

TWA 5 ppm (30 mg/m3)
ST 10 ppm (60 mg/m3)[
]

Dichloromonofluoromethane

二氯一氟甲烷

TWA 10 ppm (40 mg/m3)

1,1-Dichloro-1-nitroethane

1,1-二氯-1-硝基乙烷

TWA 2 ppm (10 mg/m3)

1,3-Dichloropropene

1,3-二氯丙烯

TWA 1 ppm (5 mg/m3)[]

2,2-Dichloropropionic acid

2,2-二氯丙酸

TWA 1 ppm (6 mg/m3)

Dicrotophos

百治磷

TWA 0.25 mg/m3[]

Dicyclopentadiene

二环戊二烯

TWA 5 ppm (30 mg/m3)

Dicyclopentadienyl iron

二茂铁

TWA 10 mg/m3 (总颗粒物)
TWA 5 mg/m3 (
呼吸性颗粒物)

Diethanolamine

二乙醇胺

TWA 3 ppm (15 mg/m3)

Diethylamine

二乙胺

TWA 10 ppm (30 mg/m3)
ST 25 ppm (75 mg/m3)

Diethylenetriamine

二乙烯三胺

TWA 1 ppm (4 mg/m3)

Diethyl ketone

二乙基甲酮

TWA 200 ppm (705 mg/m3)

Diethyl phthalate

邻苯二甲酸二乙酯

TWA 5 mg/m3

Diglycidyl ether

二缩水甘油谜

TWA 0.1 ppm (0.5 mg/m3)

Diisobutyl ketone

二异丁基甲酮

TWA 25 ppm (150 mg/m3)

N,N-Dimethylaniline

N,N-二甲基苯胺

TWA 5 ppm (25 mg/m3)
ST 10 ppm (50 mg/m3)[
]

Dimethyl-1,2-dibromo-2,2-dichlorethyl phosphate

二甲基-1,2-二溴-2,2-二氯乙基磷酸酯

TWA 3 mg/m3[]

Dimethyl sulfate

硫酸二甲酯

TWA 0.1 ppm (0.5 mg/m3)[]

Dinitolmide

二硝托胺

TWA 5 mg/m3

Di-sec octyl phthalate

苯二甲酸二仲辛酯

TWA 5 mg/m3
ST 10 mg/m3

Dioxane

二噁烷

TWA 25 ppm (90 mg/m3)[]

Dioxathion

TWA 0.2 mg/m3[]

Diphenylamine

二苯胺

TWA 10 mg/m3

Dipropylene glycol methyl ether

二丙二醇甲醚

TWA 100 ppm (600 mg/m3)
ST 150 ppm (900 mg/m3)[
]

Dipropyl ketone

二丙基甲酮

TWA 50 ppm (235 mg/m3)

Diquat (Diquat dibromide)

敌草快

TWA 0.5 mg/m3

Disulfiram

戒酒硫

TWA 2 mg/m3

Disulfoton

乙拌磷

TWA 0.1 mg/m3[]

2,6-Di-tert-butyl-p-cresol

2,6-二叔丁基对甲酚

TWA 10 mg/m3

Diuron

敌草隆

TWA 10 mg/m3

Divinyl benzene

二乙烯(基)苯

TWA 10 ppm (50 mg/m3)

Emery

金刚砂

TWA 10 mg/m3 (总颗粒物)
TWA 5 mg/m3 (
呼吸性颗粒物)

Endosulfan

硫丹

TWA 0.1 mg/m3[]

Epichlorohydrin

环氧氯丙烷

TWA 2 ppm (8 mg/m3)[]

Ethanolamine

乙醇胺

TWA 3 ppm (8 mg/m3)
ST 6 ppm (15 mg/m3)

Ethion

乙硫磷

TWA 0.4 mg/m3[]

Ethyl acrylate

丙烯酸乙酯

TWA 5 ppm (20 mg/m3)
ST 25 ppm (100 mg/m3)[
]

Ethyl benzene

乙苯

TWA 100 ppm (435 mg/m3)
ST 125 ppm (545 mg/m3)

Ethyl bromide

溴乙烷

TWA 200 ppm (890 mg/m3)
ST 250 ppm (1110 mg/m3)

Ethylene chlorohydrin

氯乙醇

C 1 ppm (3 mg/m3)[]

Ethylene dichloride

二氯乙烷

TWA 1 ppm (4 mg/m3)
ST 2 ppm (8 mg/m3)

Ethylene glycol

乙二醇

C 50 ppm (125 mg/m3)

Ethylene glycol dinitrate

乙二醇二硝酸酯

ST 0.1 mg/m3[]

Ethyl ether

乙醚

TWA 400 ppm (1200 mg/m3)
ST 500 ppm (1500 mg/m3)

Ethylidene norbornene

亚乙基降冰片烯

C 5 ppm (25 mg/m3)

Ethyl mercaptan

乙硫醇

TWA 0.5 ppm (1 mg/m3)

N-Ethylmorpholine

N-乙基吗啡啉

TWA 5 ppm (23 mg/m3)[]

Ethyl silicate

硅酸乙酯

TWA 10 ppm (85 mg/m3)

Fenamiphos

苯线磷

TWA 0.1 mg/m3[]

Fensulfothion

辛索磷

TWA 0.1 mg/m3

Fenthion

倍硫磷

TWA 0.2 mg/m3[]

Ferbam

福美铁

TWA 10 mg/m3

Ferrovanadium dust

钒铁尘

TWA 1 mg/m3
ST 3 mg/m3

Fluorotrichloromethane

氟三氯甲烷

C 1000 ppm (5600 mg/m3)

Fonofos

地虫磷

TWA 0.1 mg/m3[]

Formamide

甲酰胺

TWA 20 ppm (30 mg/m3)
ST 30 ppm (45 mg/m3)

Furfural

糠醛

TWA 2 ppm (8 mg/m3)[]

Furfuryl alcohol

糠醇

TWA 10 ppm (40 mg/m3)
ST 15 ppm (60 mg/m3)[
]

Gasoline

汽油

TWA 300 ppm (900 mg/m3)
ST 500 ppm (1500 mg/m3)

Germanium tetrahydride

四氢化锗

TWA 0.2 ppm (0.6 mg/m3)

Glutaraldehyde

戊二醛

C 0.2 ppm (0.8 mg/m3)

Glycerin (mist)

丙三醇(雾)

TWA 10 mg/m3 (总颗粒物)
TWA 5 mg/m3 (
呼吸性颗粒物)

Glycidol

缩水甘油

TWA 25 ppm (75 mg/m3)

Graphite (natural)

石墨(天然)

TWA 2.5 mg/m3 (呼吸性颗粒物)

Graphite (synthetic)

石墨(合成)

TWA 10 mg/m3 (总颗粒物)
TWA 5 mg/m3 (
呼吸性颗粒物)

n-Heptane

正庚烷

TWA 400 ppm (1600 mg/m3)
ST 500 ppm (2000 mg/m3)

Hexachlorobutadiene

六氯丁二烯

TWA 0.02 ppm (0.24 mg/m3)

Hexachlorocyclopentadiene

六氯环戊二烯

TWA 0.01 ppm (0.1 mg/m3)

Hexafluoroacetone

六氟丙酮

TWA 0.1 ppm (0.7 mg/m3)[]

n-Hexane

正己烷

TWA 50 ppm (180 mg/m3)

Hexane isomers (except n-Hexane)

己烷异构体(除正己烷外)

TWA 500 ppm (1800 mg/m3)
ST 1000 ppm (3600 mg/m3)

2-Hexanone

2-己酮

TWA 5 ppm (20 mg/m3)

Hexone

异己酮

TWA 50 ppm (205 mg/m3)
ST 75 ppm (300 mg/m3)

Hexylene glycol

己二醇

C 25 ppm (125 mg/m3)

Hydrazine

TWA 0.1 ppm (0.1 mg/m3)[]

Hydrogenated terphenyls

氢化三联苯

TWA 0.5 ppm (5 mg/m3)

Hydrogen bromide

溴化氢

C 3 ppm (10 mg/m3)

Hydrogen cyanide

氰化氢

ST 4.7 ppm (5 mg/m3)[]

Hydrogen fluoride (as F)

氟化氢(按氟计)

TWA 3 ppm
ST 6 ppm

Hydrogen sulfide

硫化氢

TWA 10 ppm (14 mg/m3)
ST 15 ppm (21 mg/m3)

2-Hydroxypropyl acrylate

丙烯酸2-羟丙酯

TWA 0.5 ppm (3 mg/m3)[]

Indene

TWA 10 ppm (45 mg/m3)

Indium

TWA 0.1 mg/m3

Iodoform

碘仿

TWA 0.6 ppm (10 mg/m3)

Iron pentacarbonyl (as Fe)

五羰基铁(按铁计)

TWA 0.1 ppm (0.8 mg/m3)
ST 0.2 ppm (1.6 mg/m3)

Iron salts (soluble, as Fe)

铁盐(可溶,按铁计)

TWA 1 mg/m3

Isoamyl alcohol (primary & secondary)

异戊醇(伯醇和仲醇)

TWA 100 ppm (360 mg/m3)
ST 125 ppm (450 mg/m3)

Isobutane

异丁烷

TWA 800 ppm (1900 mg/m3)

Isobutyl alcohol

异丁醇

TWA 50 ppm (150 mg/m3)

Isooctyl alcohol

异辛醇

TWA 50 ppm (270 mg/m3)[]

Isophorone

异佛尔酮

TWA 4 ppm (23 mg/m3)

Isophorone diisocyanate

异佛尔酮二异氰酸酯

TWA 0.005 ppm
ST 0.02 ppm[
]

2-Iso propoxyethanol

2-异丙氧基乙醇

TWA 25 ppm (105 mg/m3)

Isopropyl acetate

乙酸异丙酯

TWA 250 ppm (950 mg/m3)
ST 310 ppm (1185 mg/m3)

Isopropyl alcohol

异丙醇

TWA 400 ppm (980 mg/m3)
ST 500 ppm (1225 mg/m3)

Isopropylamine

异丙胺

TWA 5 ppm (12 mg/m3)
ST 10 ppm (24 mg/m3)

N-Isopropylaniline

N-异丙基苯胺

TWA 2 ppm (10 mg/m3)[]

Isopropyl glycidyl ether

异丙基缩水甘油醚

TWA 50 ppm (240 mg/m3)
ST 75 ppm (360 mg/m3)

Kaolin

高岭土

TWA 10 mg/m3 (总颗粒物)
TWA 5 mg/m3 (
呼吸性颗粒物)

Ketene

乙烯酮

TWA 0.5 ppm (0.9 mg/m3)
ST 1.5 ppm (3 mg/m3)

Magnesium oxide fume

氧化镁烟

TWA 10 mg/m3

Malathion

马拉硫磷

TWA 10 mg/m3[]

Manganese compounds and fume (as Mn)

锰化合物及其烟(按锰计)

化合物

C 5 mg/m3

TWA 1 mg/m3
ST 3 mg/m3

Manganese cyclopentadienyl tricarbonyl (as Mn)

三羰基环戊二烯合锰(按锰计)

TWA 0.1 mg/m3[]

Manganese tetroxide (as Mn)

四氧化锰按锰计

TWA 1 mg/m3

Mercury compounds, as Hg [except(organo) alkyls]

汞化合物(不包括烷基汞)(按汞计)

汞蒸气

 

TWA 0.05 mg/m3[]

 

非烷基化合物

 

C 0.1 mg/m3[]

Mercury (organo) alkyls compounds as Hg

烷基汞化合物(按汞计)

 

TWA 0.01mg/m3]

C0.03 mg/m3[]

Mesityl oxide

异亚丙基丙酮

TWA 15 ppm (60 mg/m3)
ST 25 ppm (100 mg/m3)

Methacrylic acid

甲基丙烯酸

TWA 20 ppm (70 mg/m3)[]

Methomyl

灭多虫

TWA 2.5 mg/m3

Methoxychlor

甲氧氯

TWA 10 mg/m3

4-Methoxyphenol

4-甲氧基苯酚

TWA 5 mg/m3

Methyl acetate

乙酸甲酯

TWA 200 ppm (610 mg/m3)
ST 250 ppm (760 mg/m3)

Methyl acetylene-propadiene mixture

丙炔-丙二烯混合物

TWA 1000 ppm (1800 mg/m3)
ST 1250 ppm (2250 mg/m3)

Methylacrylonitrile

甲基丙烯腈

TWA 1 ppm (3 mg/m3)[]

Methyl alcohol

甲醇

TWA 200 ppm (260 mg/m3)
ST 250 ppm (325 mg/m3)[
]

Methyl bromide

溴甲烷

TWA 5 ppm (20 mg/m3)[]

Methyl chloride

氯甲烷

TWA 50 ppm (105 mg/m3)
ST 100 ppm (210 mg/m3)

Methyl chloroform

甲基氯仿

TWA 350 ppm (1900 mg/m3)
ST 450 ppm (2450 mg/m3)

Methyl-2-cyanoacrylate

2-氰基丙烯酸甲酯

TWA 2 ppm (8 mg/m3)
ST 4 ppm (16 mg/m3)

Methylcyclohexane

甲基环己烷

TWA 400 ppm (1600 mg/m3)

Methylcyclohexanol

甲基环己醇

TWA 50 ppm (235 mg/m3)

o-Methylcyclohexanone

邻甲基环己酮

TWA 50 ppm (230 mg/m3)
ST 75 ppm (345 mg/m3)[
]

Methyl cyclopentadienyl manganese tricarbonyl (as Mn)

甲基环戊二烯三羰基锰(按锰计)

TWA 0.2 mg/m3[]

Methyl demeton

甲基内吸磷

TWA 0.5 mg/m3[]

4,4'-Methylenebis(2-chloroaniline)

4,4'-亚甲基双(2-氯苯胺

TWA 0.02 ppm (0.22 mg/m3)[]

Methylene bis(4-cyclohexylisocyanate)

亚甲基二4-环己基异氰酸酯

C 0.01 ppm (0.11 mg/m3)[]

Methyl ethyl ketone peroxide

过氧化甲乙酮

C 0.7 ppm (5 mg/m3)

Methyl formate

甲酸甲酯

TWA 100 ppm (250 mg/m3)
ST 150 ppm (375 mg/m3)

Methyl iodide

碘甲烷

TWA 2 ppm (10 mg/m3)[]

Methyl isoamyl ketone

甲基异戊基甲酮

TWA 50 ppm (240 mg/m3)

Methyl isobutyl carbinol

甲基异丁基甲醇

TWA 25 ppm (100 mg/m3)
ST 40 ppm (165 mg/m3)[
]

Methyl isopropyl ketone

甲基异丙基甲酮

TWA 200 ppm (705 mg/m3)

Methyl mercaptan

甲(基)硫醇

TWA 0.5 ppm (1 mg/m3)

Methyl parathion

甲基对硫磷

TWA 0.2 mg/m3[]

Methyl silicate

硅酸甲酯

TWA 1 ppm (6 mg/m3)

α-Methyl styrene

α-甲基乙烯

TWA 50 ppm (240 mg/m3)
ST 100 ppm (485 mg/m3)

Metribuzin

嗪草酮

TWA 5 mg/m3

Mica

云母

TWA 3 mg/m3 (呼吸性颗粒物)

Molybdenum (insoluble compounds, as Mo)

钼(不溶性化合物,按钼计)

TWA 10 mg/m3

Monocrotophos

久效磷

TWA 0.25 mg/m3

Monomethyl aniline

甲基苯胺

TWA 0.5 ppm (2 mg/m3)[]

Morpholine

吗啉

TWA 20 ppm (70 mg/m3)
ST 30 ppm (105 mg/m3)[
]

Naphthalene

TWA 10 ppm (50 mg/m3)
ST 15 ppm (75 mg/m3)

Nickel metal & other compounds (as Ni)

金属镍及其化合物(按镍计)

金属镍及其不溶性化合物

 

TWA 1 mg/m3

 

可溶性化合物

TWA 0.1 mg/m3

Nitric acid

硝酸

TWA 2 ppm (5 mg/m3)
ST 4 ppm (10 mg/m3)

p-Nitroaniline

硝基苯胺

TWA 3 mg/m3[]

Nitrogen dioxide

二氧化氮

ST 1 ppm (1.8 mg/m3)

Nitroglycerine

硝化甘油

ST 0.1 mg/m3[]

2-Nitropropane

2-硝基丙烷

TWA 10 ppm (35 mg/m3)

Nitrotoluene (o-, m-, p-isomers)

硝基甲苯(邻异构体

TWA 2 ppm (11 mg/m3)[]

Nonane

壬烷

TWA 200 ppm (1050 mg/m3)

Octachloronaphthalene

八氯萘

TWA 0.1 mg/m3
ST 0.3 mg/m3[
]

Octane

辛烷

TWA 300 ppm (1450 mg/m3)
ST 375 ppm (1800 mg/m3)

Osmium tetroxide (as Os)

四氧化锇(按锇计)

TWA 0.002 mg/m3 (0.0002 ppm)
ST 0.006 mg/m3 (0.0006 ppm)

Oxalic acid

草酸

TWA 1 mg/m3
ST 2 mg/m3

Oxygen difluoride

二氟化氧

C 0.05 ppm (0.1 mg/m3)

Ozone

臭氧

TWA 0.1 ppm (0.2 mg/m3)
ST 0.3 ppm (0.6 mg/m3)

Paraffin wax fume

石蜡烟

TWA 2 mg/m3

Paraquat

百草枯

TWA 0.1 mg/m3 (呼吸性颗粒物)[]

Pentaborane

戊硼烷

TWA 0.005 ppm (0.01 mg/m3)
ST 0.015 ppm (0.03 mg/m3)

Pentaerythritol

季戊四醇

TWA 10 mg/m3 (总颗粒物)
TWA 5 mg/m3 (
呼吸性颗粒物)

n-Pentane

正戊烷

TWA 600 ppm (1800 mg/m3)
ST 750 ppm (2250 mg/m3)

2-Pentanone

2-戊酮

TWA 200 ppm (700 mg/m3)
ST 250 ppm (875 mg/m3)

Perchloryl fluoride

氟化过氯氧

TWA 3 ppm (14 mg/m3)
ST 6 ppm (28 mg/m3)

Petroleum distillates (naphtha)

石油馏出物(石脑油)

TWA 400 ppm (1600 mg/m3)

Phenothiazine

吩噻嗪

TWA 5 mg/m3[]

Phenyl glycidyl ether

苯基缩水甘油醚

TWA 1 ppm (6 mg/m3)

Phenylhydrazine

苯肼

TWA 5 ppm (20 mg/m3)
ST 10 ppm (45 mg/m3)[
]

Phenylphosphine

苯膦

C 0.05 ppm (0.25 mg/m3)

Phorate

甲拌磷

TWA 0.05 mg/m3
ST 0.2 mg/m3[
]

Phosdrin

速灭磷

TWA 0.01 ppm (0.1 mg/m3)
ST 0.03 ppm (0.3 mg/m3)[
]

Phosphine

磷化氢

TWA 0.3 ppm (0.4 mg/m3)
ST 1 ppm (1 mg/m3)

Phosphoric acid

磷酸

TWA 1 mg/m3
ST 3 mg/m3

Phosphorus oxychloride

三氯氧磷

TWA 0.1 ppm (0.6 mg/m3)

Phosphorus pentasulfide

五硫化二磷

TWA 1 mg/m3
ST 3 mg/m3

Phosphorus trichloride

三氯化磷

TWA 0.2 ppm (1.5 mg/m3)
ST 0.5 ppm (3 mg/m3)

Phthalic anhydride

邻苯二甲酸酐

TWA 6 mg/m3 (1 ppm)

m-Phthalodinitrile

间酞二甲腈

TWA 5 mg/m3

Picloram

毒莠定

TWA 10 mg/m3 (总颗粒物)
TWA 5 mg/m3 (
呼吸性颗粒物)

Piperazine dihydrochloride

哌嗪二盐酸盐

TWA 5 mg/m3

Platinum metal (as Pt)

铂金属按铂计)

TWA 1 mg/m3

Portland cement

硅酸盐水泥

TWA 10 mg/m3 (总颗粒物)
TWA 5 mg/m3 (
呼吸性颗粒物)

Potassium hydroxide

氢氧化钾

TWA 2 mg/m3

Propargyl alcohol

炔丙醇

TWA 1 ppm (2 mg/m3)[]

Propionic acid

丙酸

TWA 10 ppm (30 mg/m3)

Propoxur

残杀威

TWA 0.5 mg/m3

n-Propyl acetate

乙酸正丙酯

TWA 200 ppm (840 mg/m3)
ST 250 ppm (1050 mg/m3)

n-Propyl alcohol

丙醇

TWA 200 ppm (500 mg/m3)
ST 250 ppm (625 mg/m3)

Propylene dichloride

二氯丙烷

TWA 75 ppm (350 mg/m3)
ST 110 ppm (510 mg/m3)

Propylene glycol dinitrate

二硝酸丙二酯

TWA 0.05 ppm (0.3 mg/m3)

Propylene glycol monomethyl ether

丙二醇甲醚

TWA 100 ppm (360 mg/m3)
ST 150 ppm (540 mg/m3)

Propylene oxide

环氧丙烷

TWA 20 ppm (50 mg/m3)

n-Propyl nitrate

硝酸正丙酯

TWA 25 ppm (105 mg/m3)
ST 40 ppm (170 mg/m3)

Resorcinol

间苯二酚

TWA 10 ppm (45 mg/m3)
ST 20 ppm (90 mg/m3)

Ronnel

皮蝇磷

TWA 10 mg/m3

Rosin core solder, pyrolysis products (as formaldehyde)

松香焊接剂,高温分解产物(按甲醛计)

TWA 0.1 mg/m3

Rouge

三氧化二铁

TWA 10 mg/m3 (总颗粒物)
TWA 5 mg/m3 (
呼吸性颗粒物)

Silica, amorphous

无定型二氧化硅

TWA 6 mg/m3
TWA 0.1 mg/m3 (
熔融的)

Silica, crystalline (as respirable dust)

结晶型二氧化硅(按呼尘计)

TWA 0.05 mg/m3 (方石英)
TWA 0.05 mg/m3 (
磷石英)
TWA 0.1 mg/m3 (
石英)
TWA 0.1 mg/m3 (
硅藻土)

Silicon

TWA 10 mg/m3 (总颗粒物)
TWA 5 mg/m3 (
呼吸性颗粒物)

Silicon carbide

碳化硅

TWA 10 mg/m3 (总颗粒物)
TWA 5 mg/m3 (
呼吸性颗粒物)

Silicon tetrahydride

四氢化硅

TWA 5 ppm (7 mg/m3)

Soapstone

皂石

TWA 6 mg/m3 (总颗粒物)
TWA 3 mg/m3 (
呼吸性颗粒物)

Sodium azide

叠氮化钠

C 0.1 ppm (HN3)[]
C 0.3 mg/m3 (
NaN3)[]

Sodium bisulfite

亚硫酸氢钠

TWA 5 mg/m3

Sodium fluoroacetate

氟乙酸钠

TWA 0.05 mg/m3
ST 0.15 mg/m3[
]

Sodium hydroxide

氢氧化钠

C 2 mg/m3

Sodium metabisulfite

焦亚硫酸钠

TWA 5 mg/m3

Stoddard solvent

史图达溶剂

TWA 525 mg/m3 (100 ppm)

Styrene

苯乙烯

TWA 50 ppm (215 mg/m3)
ST 100 ppm (425 mg/m3)

Subtilisins

枯草杆菌蛋白酶

ST 0.00006 mg/m360min)

Sulfur dioxide

二氧化硫

TWA 2 ppm (5 g/m3)
ST 5 ppm (13 mg/m3)

Sulfur monochloride

一氯化硫

C 1 ppm (6 mg/m3)

Sulfur tetrafluoride

四氟化硫

C 0.1 ppm (0.4 mg/m3)

Sulfuryl fluoride

硫酰氟

TWA 5 ppm (20 mg/m3)
ST 10 ppm (40 mg/m3)

Sulprofos

硫丙磷

TWA 1 mg/m3

Talc

滑石

TWA 2 mg/m3 (呼吸性颗粒物)

Temephos

双硫磷

TWA 10 mg/m3 (总颗粒物)
TWA 5 mg/m3 (
呼吸性颗粒物)

Terphenyl (o-, m-, p-isomers)

三联苯对异构体

C 5 mg/m3 (0.5 ppm)

1,1,2,2-Tetrachloroethane

1,1,2,2-四氯乙烷

TWA 1 ppm (7 mg/m3)[]

Tetrachloroethylene

四氯乙烯

TWA 25 ppm (170 mg/m3)

Tetrahydrofuran

四氢呋喃

TWA 200 ppm (590 mg/m3)
ST 250 ppm (735 mg/m3)

Tetrasodium pyrophosphate

焦磷酸四钠

TWA 5 mg/m3

4,4'-Thiobis(6-tert-butyl-m-cresol)

4,4'-硫代双(6-叔丁基间甲酚

TWA 10 mg/m3 (总颗粒物)
TWA 5 mg/m3 (
呼吸性颗粒物)

Thioglycolic acid

巯基乙酸

TWA 1 ppm (4 mg/m3)[]

Thionyl chloride

亚硫酰氯

C 1 ppm (5 mg/m3)

Tin (organic compounds, as Sn)

有机化合物,按

TWA 0.1 mg/m3[]

Tin(II) oxide (as Sn)

一氧化锡(II价,按锡计)

TWA 2 mg/m3

Tin(IV) oxide (as Sn)

二氧化锡(IV价,按锡计)

TWA 2 mg/m3

Titanium dioxide

二氧化钛

TWA 10 mg/m3

Toluene

甲苯

TWA 100 ppm (375 mg/m3)
ST 150 ppm (560 mg/m3)

Toluene-2,4-diisocyanate

甲苯-2,4-二异氰酸酯

TWA 0.005 ppm (0.04 mg/m3)
ST 0.02 ppm (0.15 mg/m3)

m-Toluidine

间甲苯胺

TWA 2 ppm (9 mg/m3)[]

p-Toluidine

甲苯胺

TWA 2 ppm (9 mg/m3)[]

Tributyl phosphate

磷酸三丁酯

TWA 0.2 ppm (2.5 mg/m3)

Trichloroacetic acid

三氯乙酸

TWA 1 ppm (7 mg/m3)

1,2,4-Trichlorobenzene

1,2,4-三氯苯

C 5 ppm (40 mg/m3)

Trichloroethylene

三氯乙烯

TWA 50 ppm (270 mg/m3)
ST 200 ppm (1080 mg/m3)

1,2,3-Trichloropropane

1,2,3-三氯丙烷

TWA 10 ppm (60 mg/m3)

1,1,2-Trichloro-1,2,2-trifluoroethane

1,1,2-三氯-1,2,2-三氟乙烷

TWA 1000 ppm (7600 mg/m3)
ST 1250 ppm (9500 mg/m3)

Triethylamine

三乙胺

TWA 10 ppm (40 mg/m3)
ST 15 ppm (60 mg/m3)

Trimellitic anhydride

偏苯三甲酸酐

TWA 0.005 ppm (0.04 mg/m3)

Trimethylamine

三甲胺

TWA 10 ppm (24 mg/m3)
ST 15 ppm (36 mg/m3)

1,2,3-Trimethylbenzene

1,2,3-三甲基苯

TWA 25 ppm (125 mg/m3)

1,2,4-Trimethylbenzene

1,2,4-三甲基苯

TWA 25 ppm (125 mg/m3)

1,3,5-Trimethylbenzene

1,3,5-三甲基苯

TWA 25 ppm (125 mg/m3)

Trimethyl phosphate

亚磷酸三甲酯

TWA 2 ppm (10 mg/m3)

2,4,6-Trinitrotoluene

2,4,6-三硝基甲苯

TWA 0.5 mg/m3[]

Triorthocresyl phosphate

磷酸三邻甲苯酯

TWA 0.1 mg/m3[]

Triphenylamine

三苯胺

TWA 5 mg/m3

Tungsten (insoluble compounds, as W)

不溶性化合物,按钨计

TWA 5 mg/m3
ST 10 mg/m3

Tungsten (soluble compounds, as W)

钨(可溶性化合物,按钨计)

TWA 1 mg/m3
ST 3 mg/m3

Tungsten carbide (cemented)

碳化钨(烧结的)

TWA 5 mg/m3 (按钨计)
ST 10 mg/m3 (
按钨计)
TWA 0.05 mg/m3
按钴计)
TWA 1 mg/m3 (
按镍计)

Uranium (insoluble compounds, as U)

铀(不溶性化合物,按铀计)

TWA 0.2 mg/m3
ST 0.6 mg/m3

n-Valeraldehyde

正戊醛

TWA 50 ppm (175 mg/m3)

Vanadium dust

钒尘

TWA 0.05 mg /m3 (V2O5)(呼吸性颗粒物)

Vanadium fume

钒烟

C 0.05 mg /m3   (V2O5)

Vinyl acetate

乙酸乙烯酯

TWA 10 ppm (30 mg/m3)
ST 20 ppm (60 mg/m3)

Vinyl bromide

溴乙烯

TWA 5 ppm (20 mg/m3)

Vinyl cyclohexene dioxide

二氧化环己烯乙烯

TWA 10 ppm (60 mg/m3)[]

Vinylidene chloride

1,1-二氯乙烯

TWA 1 ppm (4 mg/m3)

VM & P Naphtha

VM & P石脑油

TWA 1350 mg/m3 (300 ppm)
ST 1800 mg/m3 (400 ppm)

Welding fumes

焊接烟

TWA 5 mg/m3

Wood dust (all wood dusts except Western red cedar)

木尘(除西方红雪松外的所有木尘)

TWA 5 mg/m3
ST 10 mg/m3

Wood dust (Western red cedar)

木尘(西方红雪松)

TWA 2.5 mg/m3

Xylene (o-, m-, p-isomers)

二甲苯(邻对异构体)

TWA 100 ppm (435 mg/m3)
ST 150 ppm (655 mg/m3)

m-Xylene α, α'-diamine

二甲苯α,α-二胺

C 0.1 mg/m3[]

Xylidine

二甲苯胺

TWA 2 ppm (10 mg/m3)[]

Zinc chloride fume

氯化锌烟

TWA 1 mg/m3
ST 2 mg/m3

Zinc oxide

氧化锌

TWA 5 mg/m3 ()
ST 10 mg/m3 (
)
TWA 10 mg/m3 (
总颗粒物)
TWA 5 mg/m3 (
呼吸性颗粒物)

Zinc stearate

硬脂酸锌

TWA 10 mg/m3 (总颗粒物)
TWA 5 mg/m3 (
呼吸性颗粒物)

Zirconium compounds (as Zr)

锆化合物(按锆计)

TWA 5 mg/m3
ST 10 mg/m3