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NOM-028-STPS-2012, System for the occupational administration – Safety in the critical processes and equipment that handle hazardous chemical substances.
Published in the DOF Sept. 6, 2012 – effective date June 6, 2014

 

 

Criteria: does this Standard apply to your company?

 

2. Field of application

2.1 This Official Mexican Standard regulates in the entire national territory and applies to the workplaces that:

a)  Perform specific processes of:

1)  Extraction of petroleum;

2)  Extraction of natural gas;

3)  Storage and distribution of natural gas;

4)  Production of liquid petroleum gas (LP gas);

5)  Storage and distribution of liquid petroleum gas (LP gas);

6)  Production of petrochemicals, or

7)  Refining of crude petroleum and basic petrochemicals, or

b) Handle hazardous chemical substances in critical processes and equipment, in equal or greater volumes than the threshold quantities stipulated in the Appendix A of this Standard.

2.2 The quantification of the hazardous chemical substances must be done according to one or more of the following criteria:

a)  The installed storage capacity and/or the process of the hazardous chemical substance in the workplace, and/or

b)  The quantity of hazardous chemical substances present as raw materials and/or finished product warehoused and/or in process.

2.3  The workplaces remain excluded from the compliance to this Standard that:

a) Handle hazardous chemical substances in critical processes and equipment, in amounts less than those than those listed in Appendix A of this Standard;

b) Warehouse flammable liquids in atmospheric tanks that are maintained below boiling point, without requiring cooling or refrigeration;

c)  Use hydrocarbons only as fuels for their internal consumption;

d) Sell gasoline or gas to the end user, or

e) Make retail sales of hazardous chemical substances or products that contain them.

-------------------------------------------------------

Appendix A

Threshold quantities of hazardous chemical substances

A.1 In order to determine the threshold quantity of each one of the hazardous chemical substances present or available in the workplace, the following must be considered:

1) The storage containers of raw materials and pipes;

2) The train of interconnected equipment considering all the equipment and their pipes;

3) The transport pipe and the storage container of finished product, and

4) Temporary warehouses.

The following table contains the chemical substances in the workplace that are regulated by this Standard - The last column contains the previous threshold amounts from NOM-028-STPS-2004  for your comparison. NOM-024-STPS-2004 is the current standard until June 2014, but the new Standard implies a lot of new procedures, records, and training - I advise an immediate review and study of the new Standard in order to adapt your program before the deadline in 2014. *Glenn McBride

 

Tabla A 1

Listado de sustancias químicas peligrosas

Table A1

List of hazardous chemical substances

#.

Sustancia

Substance

CAS #

Cantidad Umbral  / Threshold quantity (kg)

 NOM-028-STPS-2012

 Previous Threshold  (kg) quantity from

NOM-028-STPS-2004

1.

1,1-Dimetilhidrazina

1,1-DIMETHYLHYDRAZINE

57-14-7

500

20,000

2.

1-Cloro-2,4-Dinitrobenceno

1-CHLORO-2, 4-DINITROBENZENE

97-00-7

2,300

3000

3.

2,4-Dinitroanilina

2,4-DINITROANILINE

97-02-9

2,300

3000

4.

3-Bromapropina (Bromuro de Propargilo)

3-BROMAPROPINE (PROPARGILE OF BROMIDE)

106-96-7

50

1000

5.

Acetaldehído

ACETALDEHYDE

75-07-0

1,200

3000

6.

Acido Nítrico (94.5% por peso o mayor)

NITRIC ACID (94.5% P/P OR GREATER)

7697-37-2

300

1000

7.

Acido Perclórico (Conc. >60% por peso)

PERCHLORIC ACID (CONCENTRATION >60% P/P)

7601-90-3

2,300

3000

8.

Acido Peroxiacético (Conc. >60% de Acido)

PEROXYACETIC ACID

(CONCENTRATION >60% OF ACID)

79-21-0

500

1000

9.

Acrilonitrilo y Derivados

ACRILONITILE AND DERIVATIVES

107-13-1

4,600

20000

10.

Acroleína (2-popenal)

ACROLEIN (2- popenal)

107-02-8

70

10000

11.

Alilamina

ATILAMINE

107-11-9

500

10000

12.

Alquilaluminio

ALKYL ALUMINUMS

Varios

2,300

3000

13.

Amoniaco en Solución (Conc. > 44% de Amoniaco por peso)

AMMONIUM IN SOLUTION (> 44% IN WEIGHT)

7664-41-7

6,900

7000

14.

Amoniaco, Anhidro

ANHYDROUS AMMONIUM

7664-41-7

4,600

5000

15.

Arsina (Hidruro de Arsénico)

ARSINE; ARSENIC HYDRIDE

7784-42-1

50

1000

16.

Benceno

BENZENE

71-43-2

4,600

20000

17.

Bis (Clorometil) Eter

BIS (CHLOROMETHYL) ETHER;

542-88-1

50

1000

18.

Bromo

BROMINE

7726-95-6

700

1000

19.

Bromuro de Hidrógeno

HYDROGEN BROMINE;

10035-10-6

2,300

1000

20.

Bromuro de Metilo

METHYL BROMIDE

74-83-9

1,200

2000

21.

Butadieno

BUTADIEN

106-99-0

4,600

3000

22.

Butano

BUTANE

68476-85-7

4,600

50000

23.

Carbonilo de Níquel (Tetracarbonilo de Níquel)

NICKEL CARBONYL; (NICKEL TETRACARBONYL)

13463-39-3

70

10000

24.

Cetona

KETONE

463-51-4

50

--

25.

Cianógeno

CIANOGENE

460-19-5

1,200

6000

26.

Cianuro de Hidrógeno (Acido Cianhídrico, Anhidro)

HYDROGEN CYANIDE; (ANHYDROUS HYDROCYANIC ACID)

74-90-8

500

3000

27.

Ciclohexano

CICLOHEXANE

110-82-7

4,600

20000

28.

Cloro

CHLORINE

7782-50-5

700

1000

29.

Clorodietilaluminio (Cloruro de Dietil Aluminio)

CHLORODIETHYLALUMINUM (DIETHYL CHLORIDE ALUMINUM)

96-10-6

2,300

6000

30.

Cloroformato de Metilo (Metil Clor Carbonato)

METHYL CHLOROFORMATE

79-22-1

300

1000

31.

Clorometil Metil Eter

CHLOROMETHYL METHYLETHER

107-30-2

300

1000

32.

Cloropicrina

CHLOROPICRINE

76-06-2

300

1000

33.

Cloropicrina y Bromuro de Metilo (Mezcla)

CHLOROPICRINE AND METHYL BROMIDE (MIXTURE)

Ninguno

700

1000

34.

Cloropicrina y Cloruro de Metilo (Mezcla)

CHLOROPICRINE AND MEHTYL CHLORIDE (MIXTURE)

Ninguno

700

1000

35.

Cloruro de Acrililo

ACRILOYL CHLORIDE

814-68-6

120

1000

36.

Cloruro de Alilo

ALYL CHLORIDE

107-05-1

500

10000

37.

Cloruro de Bromo

BROMINE CHLORIDE

13863-41-7

700

1000

38.

Cloruro de Carbonilo (Fosgeno)

CARBONYL CHLORIDE (PHOSGENE)

75-44-5

50

1000

39.

Cloruro de Cianógeno

CYANOGENE CHLORIDE

506-77-4

300

1000

40.

Cloruro de Fosforilo (Oxicloruro de Fósforo)

PHOSPHORYL CHLORIDE

(PHOSPHORUS OXYCHLORIDE)

10025-87-3

500

1000

41.

Cloruro de Hidrógeno (Acido Clorhídrico, Anhidro)

HYDROGEN CHLORIDE; (ANHYDROUS CHLOROHYDRIC ACID)

7647-01-0

2,300

3000

42.

Cloruro de Metacriloilo

METHACRYLOYL CHLORIDE

920-46-7

70

1000

43.

Cloruro de Metilo

METHYL CHLORIDE

74-87-3

6,900

3000

44.

Cloruro de Tionilo

THIONYL CHLORIDE

7719-09-7

120

1000

45.

Cloruro de Vinilo

VINYL CHLORIDE

75-01-4

4,600

3000

46.

Cumeno

CUMENE

98-82-8

4,600

100000

47.

Diazometano

DIAZOMETHANE

334-88-3

300

1000

48.

Diborano

DIABORANE

19287-45-7

50

1000

49.

Dicloro Acetileno

ACETYLENE DICHLORIDE

7572-29-4

120

1000

50.

Dicloroetano

DICHLOROETHANE

75-34-3

4,600

36000

51.

Diclorosilano

DICHLOROSILANE

4109-96-0

1,200

20000

52.

Dietilzinc

DIETHYLZINC

557-20-0

4,600

100000

53.

Difluoruro de Oxígeno (Monóxido de Flúor)

OXYGEN DIFLOURIDE; (FLOURINE MONOXIDE)

7783-41-7

50

1000

54.

Dimetilamina Anhidra

ANHYDROUS DIMETHYLAMINE

124-40-3

1,200

2000

55.

Dimetildiclorosilano

DIMETHYLDICHLOROSILANE

75-78-5

500

34000

56.

Dióxido de Azufre (Líquido)

LIQUID SULFUR DIOXIDE

7446-09-5

500

1000

57.

Dióxido de Cloro

CHLORODIOXIDE

10049-04-4

500

1000

58.

Estibina (Hidruro de Antimonio)

ESTIBINE (ANTIMONY HYDRIDE)

7803-52-3

300

1000

59.

Etano

ETHANOL

74-84-0

4,600

3000

60.

Etilamina

ETHYLAMINE

75-04-7

3,500

5000

61.

Etilbenceno

ETHYLBENZENE

100-41-4

4,600

1000

62.

Etilen Fluorohidrina

FLOUROHYDRIDE EHTYLENE

371-62-0

50

1000

63.

Etilenimina

ETHYLENIMINE

151-56-4

500

20000

64.

Etileno

ETHYLENE

74-85-1

4,600

3000

65.

Flúor

FLOURINE

7782-41-4

500

1000

66.

Fluoroacetato de Metilo

METHYL FLOUROACETATE

453-18-9

50

1000

67.

Fluorosulfato de Metilo

METHYL FLOUROSULPHATE

421-20-5

50

1000

68.

Fluoruro Cianúrico

CYANURIC FLOURIDE

675-14-9

50

1000

69.

Fluoruro de Carbonilo

CARBONYL FLOURIDE

353-50-4

1,200

1500

70.

Fluoruro de Hidrógeno (Acido Fluorhídrico, Anhidro)

HYDROGEN FLOURIDE:(HYDROFLOURIDE ACID ANHYDRIDE)

7664-39-3

500

1000

71.

Fluoruro de Perclorilo

PERCHLORILE FLOURIDE

7616-94-6

2,300

3000

72.

Formaldehído (Formalina)

FORMALDEHYDE (FORMALINE)

50-00-0

500

1000

73.

Fosfina (Fosfuro de Hidrógeno)

PHOSPHINE (HYDROGEN PHOSPHURUS)

7803-51-2

50

1000

74.

Fósforo, Tricloruro de

PHOSPHOR, FURANE TRICHLORIDE

7719-12-2

500

1000

75.

Furano

FURANE

110-00-9

300

10000

76.

Gas Amargo (Azufroso)

BITTER GAS (SULPHUROUS)

-

4,600

50000

77.

Gas Dulce Seco (Gas Natural)

DRY SWEET GAS (NATURAL GAS)

-

4,600

50000

78.

Gasolina Regular

REGULAR GASOLINE

86290-81-5

4,600

500000

79.

Heptano

HEPTANE

142-82-5

4,600

15000

80.

Hexafluoroacetona

HEXAFLOUROACETONE

684-16-2

2,300

3000

81.

Hexafluoruro de Selenio

SELENIUM HEXAFLOURIDE

7783-79-1

500

1000

82.

Hexafluoruro de Telurio

TELURIUM HEXAFLOURIDE

7783-80-4

120

1000

83.

Hexano

HEXANE

110-54-3

4,600

20000

84.

Hidroperóxido de Butilo (Terciario)

BUTYL HYDROPEROXIDE (TERTIARY)

75-91-2

2,300

100000

85.

Hidroperóxido de Cumeno

CUMENE HYDROXIDE

80-15-9

2,300

3000

86.

Hidroxilamina

HYDROXYLAMINE

7803-49-8

1,200

1500

87.

Isopropano

ISOPROPANE

-

4,600

3000

88.

Isopropilamina

ISOPROPYLAMINE

75-31-0

2,300

3000

89.

Metacrilaldehído (Metil Acroleína)

METACRYLALDEHYDE

78-85-3

500

9000

90.

Metacriloiloxietil-Isocianato

METACRYLOYL-OXYETHEL-ISOCYANATE

30674-80-7

50

1000

91.

Metano

METHANE

74-82-8

4,600

50000

92.

Metanol

METHANOL

67-56-1

4,600

30000

93.

Metil Acrilonitrilo

METHYL ACRILONITRILE

126-98-7

120

19000

94.

Metil Hidracina

METHYL HYDRACINE

60-34-4

50

20000

95.

Metil Isocianato

METHYL ISOCYANATE

624-83-9

120

1000

96.

Metil Mercaptano

METHYL MERCAPTANE

74-93-1

2,300

16000

97.

Metil Vinil Cetona

METHYL VINYL KETONE

78-94-4

50

1000

98.

Metilamina Anhidra

ANHYDROUS METHYLAMINE

74-89-5

500

1000

99.

Metiltriclorosilano

METHYL TRICHLOROSILANE

75-79-6

300

10000

100.

Monómero de Estireno

STYRENE MONOMER

100-42-5

4,600

5000

101.

MTBE (Metil Terbutil Eter)

MTBE (METHYL TERBUTYL ETHER)

1634-04-4

4,600

1000

102.

Nitrato de Celulosa (Conc. >12.6% de Nitrógeno)

CELLULOSE NITRATE (>12.6% CONCENTRATION OF NITROGEN)

9004-70-0

1,200

5000

103.

Nitrato Propílico

PROPYLIC NITRATE

627-13-4

1,200

100000

104.

Nitrito de Etilo

ETHYL NITRITE

109-95-5

2,300

1000

105.

Nitroanilina (Para-Nitroanilina)

NITROANILINE (PARA-NITROANILINE)

100-01-6

2,300

3000

106.

Nitrometano

NITROMETHANE

75-52-5

1,200

1500

107.

Oleum (65% a 80% por peso, Acido Sulfúrico Fumante)

OLEUM (65% TO 80% IN WEIGHT OF SO3); (FUMANTE SULFURIC ACID)

8014-95-7

500

10000

108.

Oxido de Etileno

ETHYLENE OXIDE

75-21-8

2,300

4000

109.

Oxido Nítrico

NITRIC OXIDE

10102-43-9

120

1000

110.

Oxidos de Nitrógeno (NO; NO2; N2O4; N2O3)

NITROGEN OXIDES (NO, NO2, N2O4, N2O3)

10102-44-0

120

1000

111.

Ozono

OZONE

10028-15-6

50

1000

112.

Pentaborano

PENTABORANE

19624-22-7

50

2000

113.

Pentacarbonilo de Hierro

IRON PENTACARBONILE

13463-40-6

120

1000

114.

Pentafluoruro de Azufre

SULFUR PENTAFLOURIDE

5714-22-7

120

1000

115.

Pentafluoruro de Bromo

BROMINE PENTAFLOURIDE

7789-30-2

1,200

1000

116.

Pentafluoruro de Cloro

CHLORIDE PENTAFLOURIDE

13637-63-3

500

1000

117.

Pentano

PENTANE

109-66-0

4,600

3000

118.

Perbenzoato de Butilo (Terciario)

BUTYL PERBENZOATE (TERTIARY)

614-45-9

3,500

4000

119.

Perclorato de Amonio

AMMONIUM PERCHLORATE

7790-98-9

3,500

4000

120.

Perclorometil Mercaptano

MERCAPTANE PERCHLOROMETHYL

594-42-3

70

1000

121.

Permanganato de Amonio

AMMONIUM PERMANGANATE

7787-36-2

3,500

4000

122.

Peroxi-di-Carbonato de Diisopropilo

DISOPROPYL PEROXIDICARBONATE

105-64-6

3,500

4000

123.

Peróxido de Diacetilo (Conc. > 70%)

DIACETYL PEROXIDE (CONC.> 70%)

110-22-5

2,300

3000

124.

Peróxido de Dibenzoilo

DIBENZOYL PEROXIDE

94-36-0

3,500

4000

125.

Peróxido de Dibutilo (Terciario)

DIBUTYL PEROXIDE (TERTIARY)

110-05-4

2,300

3000

126.

Peróxido de Dilauroilo

DILAURYL PEROXIDE

105-74-8

3,500

4000

127.

Peróxido de Etil Metil Cetona (Conc. >60%)

ETHYL METHYL KETONE PEROXIDE (METHYL ETHYL KETONE PEROXIDE, CONC. >60%)

1338-23-4

2,300

3000

128.

Peróxido de Hidrógeno (Igual o > 52% por peso)

HYDROGEN PEROXIDE (EQUAL O> 52% IN WEIGHT)

7722-84-1

3,500

4000

129.

Propano

PROPANE

74-98-6

4,600

50000

130.

Propileno

PROPYLENE

115-07-1

4,600

3000

131.

Sarin

SARIN

107-44-8

50

1000

132.

Seleniuro de Hidrógeno

HYDROGEN SELENIUM;

7783-07-5

70

5000

133.

Sulfuro de Hidrógeno

HYDROGEN SULFUR;

7783-06-4

700

1000

134.

Tame (Eter Metil Teramínico)

TAME (ETHER METHYL TERAMINIC)

994-05-8

4,600

1000

135.

Tetrafluoroetileno

TETRAFLOURETHYLENE

116-14-3

2,300

3000

136.

Tetrafluorohidrazina

TETRAFLOUROHYDRAZINE

10036-47-2

2,300

1000

137.

Tetrafluoruro de Azufre

SULFUR TETRAFLOURIDE

7783-60-0

120

1000

138.

Tetrafluoruroetileno

TETRAFLOUROEHTYLENE

116-14-3

4,600

100000

139.

Tetrametilo de Plomo

LEAD TETRAMETHYL

75-74-1

500

1000

140.

Tetraóxido de diNitrógeno (También conocido como Peróxido de Nitrógeno)

NITROGEN TETRAOXIDE (ALSO KNOWN AS NITROGEN PEROXIDE)

10544-72-6

120

1000

141.

Tetraóxido de Osmio

OSMIUM TETRAOXIDE

20816-12-0

50

1000

142.

Tolueno

TOLUENE

108-88-3

4,600

100000

143.

Tricloro (Clorometil) Silano

TRICHLORO SILANE (CHLOROMETHYL)

1558-25-4

50

1000

144.

Tricloro (Diclorofenil) Silano

TRICHLORO SILANE (DICHLOROPHENYL)

27137-85-5

1,200

1500

145.

Triclorosilano

TRICHLOROSILANE

10025-78-2

2,300

10000

146.

Tricloruro de Boro

BORO TRICHLORIDE

10294-34-5

1,200

1500

147.

Trifluorocloroetileno

TRIFLOUROCHLORETHYLENE

79-38-9

4,600

5000

148.

Trifluoruro de Boro

BORO TRIFLOURIDE

7637-07-2

120

1000

149.

Trifluoruro de Bromo

BROMO TRIFLOURIDE

7787-71-5

6,900

7000

150.

Trifluoruro de Cloro

CHLORO TRIFLOURIDE

7790-91-2

500

1000

151.

Trifluoruro de Nitrógeno

NITROGEN TRIFLOURIDE

7783-54-2

2,300

3000

152.

Trimetiloxisilano

TRIMETHYL-OXI-SILANE

2487-90-3

700

1000

153.

Trióxido de Azufre (Anhidro Sulfúrico)

SULFUR TRIOXIDE (ANHYDROUS SULFURIC)

7446-11-9

500

1000

154.

Trióxido de Nitrógeno

NITROGEN TRIOXIDE

10544-73-7

120

1000

155.

Turbosina (Gas Avión)

TURBOSINE (AIRCRAFT FUEL)

-

4,600

500000

156.

Xilenos

XYLENES

1330-20-7

4,600

100000

157.

Yoduro de Metilo

METHYL IODINE

74-88-4

3,500

1000

 

 

 

 

 

 

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