The MAK Collection for Occupational Health and Safety

What's New

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Substances in the lists of MAK values and BAT values reviewed in 2010/2011

(* in Sections IIa, IIb, III, IV, V, XII, XIII, XIV and XV; 8 dismissed from consideration)

MAK Values

Changes

• * Amitrole [61-82-5]
  carcinogen category 4   previous classification: 3B
  additional designation H
• * Aniline [62-53-3]
  review of classification: no change
• * tert-Butyl-4-hydroxyanisole (BHA) [25013-16-5]
  MAK value 20 mg/m³ E   previous value: section IIb
  peak limitation II (1)
  pregnancy risk group C
  carcinogen category 3B
• * n-Butyltin compounds (as Sn [7440-31-5])
  pregnancy risk group C is split:
  Mono-n-butyl tin compounds:
  pregnancy risk group C
  Di-n-butyltin compounds: pregnancy risk group B Tri-n-butyltin compounds: pregnancy risk group B
  Tetra-n-butyltin: pregnancy risk group C
• * Butynediol [110-65-6]
  MAK value 0,1 ml/m³ equivalent to 0,36 mg/m³   previous value: 0,2 mg/m³ E
• * Calcium cyanamide [156-62-7]
  review of classification: no change
• * Carbon monoxide [630-08-0]
  peak limitation II (2)   previous classification: II (1)
• * Chlordecone [143-50-0]
  carcinogen category 2   previous classification: 3B
  additional designation H
• * Chromium(VI) compounds
  Classifications are adopted for barium chromate and lead chromate
  footnote: “the chromates of barium, lead, strontium and zinc are not designated with H”
  footnote: “barium chromate and lead chromate are not designated with Sh”
• * Cyanamide [420-04-2]
  MAK value 0,2 ml/m³ equivalent to 0,35 E mg/m³   previous value: 1 mg/m³ E
  peak limitation II (1)   previous value: II (2)
  footnote: “can also be found as vapour”
• * Cyclohexylamine [108-91-8]
  review of classification: no change
• * 2,6-Di-tert-butyl-p-cresol [128-37-0]
  MAK value 10 mg/m³ E   previous value: 20 mg/m³ E
  peak limitation II (4)   previous value: II (2)
• * 1,2-Dichlorobenzene [95-50-1]
  review of classification: no change
• * 1,3-Dichlorobenzene [541-73-1]
  review of classification: no change
• * Diethylene glycol [111-46-6]
  review of classification: no change
• * Dimethylformamide [68-12-2]
  peak limitation II (2)   previous classification: II (4)
• * 1,3-Dioxolane (Dioxacyclopentane) [646-06-0]
  pregnancy risk group B previous classification: C
• * Dipropylene glycol [25265-71-8]
  MAK value 100 mg/m³ E   previous value: 200 mg/m³ E
  additional designation H
• * Dusts, general threshold limit value (respirable fraction)
  changes see Granular biopersistent dusts (respirable fraction)
• * Endrin [72-20-8]
  MAK value 0,05 mg/m³ E   previous value: 0,1 mg/m³ E
• * Ethylbenzene [100-41-4]
  MAK value 20 ml/m³ equivalent to 88 mg/m³
  peak limitation II (2)
  pregnancy risk group C
  carcinogen category 4   previous classification: 3A
• * Ethylene glycol dinitrate [628-96-6]
  footnote: “only applies for work areas where skin contact with the substance does not occur” is withdrawn
• * 2-Ethyl-1-hexanol [104-76-7]
  MAK value 10 ml/m³ equivalent to 54 mg/m³   previous value: 20 ml/m³ equivalent to 110 mg/m³
  pregnancy risk group B   previous value: C
• * Granular biopersistent dusts (respirable fraction)
  Dusts, general threshold limit value (respirable fraction)
  MAK value 0,3 mg/m³ A   previous value: 1,5 mg/m³ A
  peak limitation II (8)
  pregnancy risk group C
  carcinogen category 4
  footnote: “for dusts with a density of 1 g/cm³”
  footnote: “with the exception of ultrafine particles”
• * Heptachlor [76-44-8]
  review of classification: no change
• * Hexamethylene bis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate] [35074-77-2]
  MAK value 10 mg/m³ E   previous value: 50 mg/m³ E
• * Iron pentacarbonyl [13463-40-6]
  peak limitation I (2)   previous classification: II (2)
  additional designation H
• * Isopropyl alcohol [67-63-0]
  review of classification: no change
• * D-Limonene [5989-27-5]
  MAK value 5 ml/m³ equivalent to 28 mg/m³   previous value: 20 ml/m³ equivalent to 110 mg/m³
  peak limitation II (4)   previous value: II (2)
  additional designation H
• * N-Methyl-2-pyrrolidone (vapour) [872-50-4]
  review of classification: no change
• * Naled [300-76-5]
  review of classification: no change
• * Nickel and nickel compounds
  footnote: “There is sufficient evidence of sensitizing effects on the repiratory tract only for water-soluble nickel compounds”
• * n-Octyltin compounds (as Sn [7440-31-5])
  MAK value 0,002 ml/m³ equivalent to
  0,0098 E mg/m³   previous value: 0,004 ml/m³ equivalent to 0,02 E mg/m³
  peak limitation II (2)   previous value: I (1)
• * Perfluorooctanoic acid [335-67-1]
  pregnancy risk group B   previous classification: C
• * Phosphorus, white/yellow [7723-14-0; 12185-10-3]
  MAK value 0,01 mg/m³ E   previous value: 0,05 mg/m³ E
• * o-Phthalic acid [88-99-3]
  review of classification: no change
• * m-Phthalic acid [121-91-5]
  MAK value 5 mg/m³ E   previous value: 2 mg/m³ E
• * p-Phthalic acid [100-21-0]
  MAK value 5 mg/m³ E   previous value: 0,1 mg/m³ E
• * Portland cement [65997-15-1]
  carcinogen category 3B
  MAK value has been withdrawn   previous value: 5 mg/m³ E
  footnote: “quartz and chromate fractions must be evaluated as such”
  footnote to no designation with Sa/Sh: “Is valid only for low-chromate cement containing less than 2 ppm (2 mg/kg) of chromium(VI).
  Refer to the chromium(VI) compounds for cement with a higher chromium(VI) content.”
• * Propylene glycol dinitrate [6423-43-4]
  footnote: “only applies for work areas where skin contact with the substance does not occur” is withdrawn
• * Sodium fluoroacetate [62-74-8]
  pregnancy risk group B   previous value: C
• * Sodium pyrithione [3811-73-2; 15922-78-8]
  pregnancy risk group B   previous value: C
• * TEDP [3689-24-5]
  MAK value 0,01 ml/m³ equivalent to 0,13 E mg/m³   previous value: 0,0075 ml/m³ equivalent to 0,1 mg/m³
  footnote: “Can also be found as vapour.”
• * Thiabendazole [148-79-8]
  review of classification: no change
• * Thiram [137-26-8]
  review of classification: no change
• * Tributyl phosphate [126-73-8]
  peak limitation II (2) previous classification: II (4)
• * 2,4,5-Trichlorophenoxyacetic acid [93-76-5]
  MAK value 2 mg/m³ E   previous value: 10 mg/m³ E
• * Triethylene glycol [112-27-6]
  pregnancy risk group B previous classification: C
• ° Zinc chloride fume [7646-85-7]
• ° Zinc oxide [1314-13-2]

New Entries

• * 2-Chloroacetamide [79-07-2]
• * Desflurane [57041-67-5]
• * 2,2-Dibromo-2-cyanoacetamide [10222-01-2]
• * Di(tert-dodecyl) pentasulfide [31565-23-8] Di(tert-dodecyl) polysulfide [68583-56-2; 68425-15-0]
• * Dipentamethylenethiuram disulfide [94-37-1]
• * Ethyl vinyl ether [109-92-2]
• * Isobutyl vinyl ether [109-53-5]
• * Methenamine 3-chloroallylochloride [4080-31-3]
• * Methyl vinyl ether [107-25-5]
• ° Mirex [2385-85-5]
• * Petroleum distillates, hydrotreated light [64742-47-8]
• * Uranium [7440-61-1] and its compounds
• * Zinc pyrithione [13463-41-7]

Biological Values

BAT Values Changes

• ° 1,2-Dichlorobenzene [95-50-1] Exposure Equivalents for Carcinogenic Substances, EKA changes
• * Acrylamide [79-06-1] establishment of EKA previous: no EKA

BLW Changes

• * Acrylamide [79-06-1] 550 pmol/g Globin 15 mg/l
• ° 2,2-Bis(4-hydroxyphenyl)propane (Bisphenol A) [80-05-7]
• * 4,4'-Diaminodiphenylmethane [101-77-9] BLW has been withdrawn   previous value: 10 mg/l

BAR Changes

• ° 4-Aminobiphenyl [92-67-1]

BAT Values New Entries

• * Ethylbenzene [100-41-4]
• * 1,6-Hexamethylene diisocyanate [822-06-0]
• * Vitamin K antagonists

Exposure Equivalents for Carcinogenic Substances, EKA New Entries

BLW New Entries

BAR New Entries

• * Acrylamide [79-06-1]
• * Polychlorinated biphenyls [1336-36-3]
• * Propylene oxide [75-56-9]
• * Uranium [7440-61-1] and its compounds [7440-61-1]