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OCCUPATIONAL HEALTH AND SAFETY REGULATIONS 2017 - SCHEDULE 14

Schedule 14—Materials and their threshold quantities

Regulation 5

        1     Relevant materials

The materials that characterise a workplace as a facility for the purposes of these Regulations are—

        (a)     the materials specifically referred to in Table 1; and

        (a)     the materials that belong to the types and categories described in Table 2.

        2     Threshold quantity of one material

    2.1     In relation to each material referred to in clause 1, the threshold quantity column of each Table provides a quantity (in tonnes) that is described as the threshold quantity of that material.

    2.2     If a material is referred to in Table 1, the threshold quantity of the material is that described in Table 1, whether or not the material can also be characterised as being a material described in Table 2.

    2.3     If a material is not referred to in Table 1 but the material can be characterised as a material described in Table 2, the threshold quantity of that material is that set out in Table 2 in the same row as the relevant material.

    2.4     If a material is not referred to in Table 1 but the material can be characterised as more than one material described in Table 2, the threshold quantity of that material is that of the relevant material which has the lower or lowest threshold quantity.

        3     Threshold quantity of more than one material

Sch. 14 cl. 3.1 amended by S.R. No. 176/2018 reg. 8(2).

    3.1     If there is more than one material, a threshold quantity of materials exists where, if a number of materials are present, the result of the following aggregation formula exceeds 1—

17-22sr01600.jpg

Where—

x , y , .… and n     are the materials present or likely to be present;

qx , qy , .... and qn     is the quantity of materials x, y, .… and n present or likely to be present, other than—

              (i)     material that is present or likely to be present in an isolated quantity less than 2% of its individual threshold quantity;

              (ii)     materials that are solely the subject of intermediate temporary storage, while in transit by road or rail;

Qx , Qy , .... and Qn     is the individual threshold quantity for each material x, y, …. and n;

Material is present or likely to be present in an isolated quantity if its location at the facility or the prescribed mine is such that it cannot, on its own, act as an initiator of a major incident.

Note to Sch. 14 cl. 3.1 amended by S.R. No. 176/2018 reg. 8(3).

Note

If the result of the above aggregation formula is greater than 0.1, the operator of a facility or a prescribed mine has a duty to notify the Authority in accordance with regulations 360 and 423A.

Sch. 14 (Table 1) amended by S.R. No. 132/2024 reg. 3.

Table 1

The CAS number or UN number listed against the named or described material is given for information only and is not to be taken to affect the name or description of the material to which the number refers or the operation of these Regulations.

The named or described material also includes materials that fall outside the CAS number or UN number, for example, because they are mixtures of several materials. However, any materials that are covered by the listed CAS numbers or UN numbers must be included in the quantity of the material named or described.

"Special provision" has the same meaning as in the ADG Code
(see regulation 5).



Item



Material


CAS number or UN number

Threshold quantity (tonnes)

1

ACETONE CYANOHYDRIN (also known as PROPANENITRILE,
2-HYDROXY-2-METHYL)

CAS No. 75-86-5

20

2

ACETYLENE (also known as ETHYNE)

CAS No. 74-86-2

50

3

ACROLEIN (also known as 2-PROPENAL; ACRYLALDEHYDE)

CAS No. 107-02-8

200

4

ACRYLONITRILE (also known as
2-PROPENENITRILE; CYANOETHENE)

CAS No. 107-13-1

200













5

ALLYL ALCOHOL (also known as
2-PROPEN-1-OL)

CAS No. 107-18-6

200

6

ALLYLAMINE (also known as
2-PROPEN-1-AMINE)

CAS No. 107-11-9

200

7

AMMONIA (anhydrous, liquefied)

CAS No. 7664-41-7

200

8

AMMONIUM NITRATE BASED FERTILISERS CAPABLE OF SELF‑SUSTAINING DECOMPOSITION that meet special provisions 186 and 193

UN No. 2071

10 000

9

AMMONIUM NITRATE BASED FERTILISERS that meet special provisions 186, 306 and 307

UN No. 2067

5000

10

AMMONIUM NITRATE: TECHNICAL GRADE (including ammonium nitrate and preparations of ammonium nitrate) that meet special provision 252, 306 or 309

UN No. 1942

2500





























11

AMMONIUM NITRATE off‑specification. That is, materials and fertilisers with a detonation hazard that are too dangerous to transport and are not approved for transport under any classification (including ammonium nitrate and preparations of ammonium nitrate and ammonium nitrate-based fertilisers that no longer meet the manufacturer's specifications, due to processing, degradation or contamination)

--

20

12

ANTIMONY PENTACHLORIDE, liquid and solution (also known as ANTIMONY CHLORIDE) [SbCl 5 ]

CAS No. 7647-18-9

500

13

ARSENIC PENTOXIDE, Arsenic (V) Acid or salts (also known as ARSENIC OXIDE [As 2 O 5 ]; ARSENIC ACID ANHYDRIDE; DIARSENIC PENTOXIDE)

CAS No. 1303-28-2

10

14

ARSENIC TRIOXIDE, Arsenious (III) Acid and/or salts (also known as ARSENIC OXIDE [As 2 O 3 ])

CAS No. 1327-53-3

0·1

15

ARSINE (also known as ARSENIC HYDRIDE; HYDROGEN ARSENIDE)

CAS No. 7784-42-1

1

16

BROMINE or BROMINE SOLUTIONS

CAS No. 7726-95-6

100

17

CARBON DISULFIDE (also known as CARBON BISULFIDE)

CAS No. 75-15-0

200

18

CHLORINE

CAS No. 7782-50-5

25

19

ETHYLENE DIBROMIDE (also known as
ETHANE, 1,2-DIBROMO; 1,2-DIBROMOETHANE)

CAS No. 106-93-4

200

20

ETHYLENEIMINE (also known as AZIRIDINE)

CAS No. 151-56-4

20

21

ETHYL NITRATE (also known as NITRIC ACID, ETHYL ESTER)

CAS No. 625-58-1

50

22

ETHYLENE OXIDE (also known as OXIRANE)

CAS No. 75-21-8

50

23

FLUORINE

CAS No. 7782-41-4

20

24

FLUOROSULFURIC ACID (also known as FLUOROSULPHONIC ACID)

CAS No. 7789-21-1

500

25

FORMALDEHYDE equal to or greater than 90% concentration
(Note: Formaldehyde below 90% concentration is captured in either or both of Table 2 Flammable materials and Table 2 Acutely toxic materials. See also clause 2)

CAS No. 50-00-0

50

26

HYDROFLUORIC ACID SOLUTION (also known as HYDROGEN FLUORIDE SOLUTION) greater than 20% concentration

CAS No. 7664-39-3

20

27

HYDROGEN

CAS No. 1333-74-0

50

28

HYDROGEN CHLORIDE (anhydrous or liquefied gas)

CAS No. 7647-01-0

200

29

HYDROGEN
CYANIDE
(also known as HYDROCYANIC
ACID)

CAS No. 74-90-8

20

30

HYDROGEN FLUORIDE (anhydrous)

CAS No. 7664-39-3

20

31

HYDROGEN SULFIDE

CAS No. 7783-06-4

20

32

IODINE MONOCHLORIDE (solid) (also known as IODINE CHLORIDE)

UN No. 1792

500

33

LP GASES

UN No. 1011

UN No. 1012

UN No. 1075

UN No. 1077

UN No. 1978

200

200

200

200

200

34

METHYL BROMIDE (also known as METHANE, BROMO; METHYLBROMIDE)

CAS No. 74-83-9

200









35

METHANE or NATURAL GAS, including biogas upgraded to the equivalent quality of natural gas

CAS No. 74-82-8

200

36

METHANOL (also known as METHYL ALCOHOL) maintained at ambient temperature and pressure

CAS No. 67-56-1

5000

37

METHANOL (also known as METHYL ALCOHOL) maintained above boiling point or equivalent processing conditions including high pressure or high temperature

CAS No. 67-56-1

200

38

METHYLISOCYANATE (also known as METHANE, ISOCYANATO-)

CAS No. 624-83-9

0·15

39

OXYGEN (compressed or refrigerated liquid)

CAS No. 7782-44-7

2000

39A

PARAQUAT DICHLORIDE equal to or greater than 10% concentration

CAS No. 1910-42-5

80

39B

PARAQUAT DICHLORIDE less than 10% concentration

CAS No. 1910-42-5

200

















40

PETROLEUM AND RELATED VAPOUR CLOUD FORMING SUBSTANCES– Gasoline, Naphtha, Benzene, Crude Oils (not of hazard category 1), Reformate (light), Natural Gas condensates (that meet the criteria for hazard category 2), Motor Spirits, Toluene, Acetone, Methyl Ethyl Ketone, Methyl Tert-Butyl Ether and n-Pentane) maintained at ambient temperature and pressure

-

25 000

41

PETROLEUM AND RELATED VAPOUR CLOUD FORMING SUBSTANCES– Gasoline, Naphtha, Benzene, Crude Oils (not of hazard category 1), Reformate (light), Natural Gas condensates (that meet the criteria for hazard category 2), Motor Spirits, Toluene, Acetone, Methyl Ethyl Ketone, Methyl Tert-Butyl Ether and n-Pentane) maintained above boiling point or equivalent processing conditions including high pressure or high temperature

-

200









42

PHENOL

CAS No. 108-95-2

200

43

PHENOL, 2,4-DICHLORO (also known as 2,4-DICHLOROPHENOL)

CAS No. 120-83-2

200

44

PHOSGENE (also known as CARBONIC DICHLORIDE)

CAS No. 75-44-5

0·75

45

PHOSPHINE

CAS No. 7803-51-2

1

46

POLYCHLORO- DIBENZOFURANS AND POLYCHLORODIBENZO-DIOXINS (including 2,3,7,8-
Tetrachlorodibenzo-p-dioxin (TCDD)). Calculated in TCDD equivalents and where concentrations are greater than 0·1% by volume

-

0·1

47

POTASSIUM NITRATE
BASED FERTILISERS (prilled/granular) with the same properties as potassium nitrate

-

10 000

48

POTASSIUM NITRATE
BASED FERTILISERS (in crystalline form) with the same properties as potassium nitrate

-

5000

49

PROPYLENEIMINE (also known as AZIRIDINE,
2-METHYL)

CAS No. 75-55-8

20

50

PROPYLENE OXIDE (also known as OXIRANE, METHYL)

CAS No. 75-56-9

50

51

PYROSULPHURYL CHLORIDE (also known as SULPHURYL CHLORIDE)

UN No. 1817

500

52

SODIUM CHLORATE (also known as CHLORIC ACID, SODIUM SALT) (solid)

CAS No. 7775-09-9

200

53

STANNIC CHLORIDE (also known as STANNANE, TETRACHLORO-) (anhydrous)

CAS No. 7646-78-8

500

54

SULFUR DICHLORIDE (also known as SULFUR CHLORIDE)

CAS No. 10545-99-0

1

55

SULFUR DIOXIDE (liquefied or gas)

CAS No. 7446-09-5

200

56

SULFUR TRIOXIDE (also known as SULFURIC ANHYDRIDE)

CAS No. 7446-11-9

75

57

SULFURIC ACID (fuming)

UN No. 1831

500

58

TITANIUM TETRACHLORIDE (also known as TITANIUM CHLORIDE [TiCl 4 ])

CAS No. 7550-45-0

500

59

TOLUENE – 2,4 DIISOCYANATE (also known as BENZENE, 2,4-DIISOCYANATO-1-METHYL)

CAS No. 584-84-9

200









60

TOLUENE - 2,6 – DIISOCYANATE (also known as BENZENE, 1,3-DIISOCYANATO-2-METHYL)

CAS No. 91-08-7

200

61

VANADIUM OXYTRICHLORIDE (also known as VANADIUM, TRICHLOROXO-)

UN No. 2443

500

Sch. 14 (Table 2) amended by S.R. No. 141/2020 reg. 11.

Table 2

If explosives of different Divisions are present in the same area or storage, then all of the explosives must be classified in accordance with the following table, except if Unstable explosives (that is, explosives determined under 2.1.3.3 of the ADG Code to be not acceptable for Class 1 and explosives of Classification Code 1.1A) are involved.

If Unstable explosives are present in the same area or storage as other explosives, then all of the explosives must be classified as Unstable explosives.

Division

1.1

1.2

1.3

1.4

1.5

1.6

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.2

1.1

1.2

1.1

1.2

1.1

1.2

1.3

1.1

1.1

1.3

1.3

1.1

1.3

1.4

1.1

1.2

1.3

1.4

1.5

1.6

1.5

1.1

1.1

1.1

1.5

1.5

1.5

1.6

1.1

1.2

1.3

1.6

1.5

1.6



Item


Type
of material



Material description

Threshold quantity (tonnes)


Explosive materials
(see note 1)



1


Unstable explosives determined under 2.1.3.3 of the ADG Code to be not acceptable for Class 1 and explosives of Classification Code 1.1A

1

2


All other Explosives of Division 1.1 (other than if prepared or mixed immediately before use in a borehole)

5

3


Explosives of Division 1.2 (other than explosives of Classification Code 1.2G)

10

4


Explosives of Classification Code 1.2G

50

5


Explosives of Division 1.3

200

6


Explosives nominally of Divisions 1.2 to 1.6 but which, due to factors including confinement or compromised packaging, have an increased likelihood of a mass explosion hazard that affects all or most of an entire load virtually instantaneously

5


Compressed and liquefied gases (see note 2)



7


Flammable gases, hazard category 1A, 1B or 2

200













8


Aerosols hazard category 1 (extremely flammable) or category 2 (flammable), containing flammable gases hazard category 1A, 1B or 2 or flammable liquids hazard category 1

500

9


Aerosols hazard category 1 (extremely flammable) or category 2 (flammable), not containing flammable gases hazard category 1A, 1B or 2 nor flammable liquids hazard category 1

50 000

10


Oxidising gases, hazard category 1

200


Flammable materials (see note 2)



11


Flammable liquids, hazard category 1

200

12


Flammable liquids hazard category 2 or 3 maintained above boiling point or if processing conditions (including high pressure or high temperature) may create a vapour cloud explosion
hazard

200

13


Flammable liquids, hazard categories 2 or 3 that, once ignited, sustain combustion

50 000

14


Pyrophoric solids and liquids, and self-heating substances and mixtures of hazard category 1

200

15


Substances and mixtures which, in contact with water, emit flammable gases, hazard category 1 or 2

200

16


Flammable liquids, hazard category 2 or 3 that react violently with water

500

17


Liquids with flashpoints <60°C kept above their boiling points at ambient conditions

200


Oxidising materials (see note 2)



18


Oxidising gases, hazard category 1, or oxidising liquids or solids hazard category 1 or 2

200


Self-reactive substances and mixtures and organic peroxides (see note 2)



19


Self-reactive substances and mixtures, Type A or B or organic peroxides, Type A or B

50

20


Self-reactive substances and mixtures, Type C, D, E
or F or organic peroxides, Type C, D, E or F

200


Acutely toxic materials (see note 2)



21


H1—Acute toxic substances and mixtures, hazard category 1, of any exposure route

20

22


H2—Acute toxic substances and mixtures, hazard category 2, of any exposure route and hazard category 3, inhalation only except, in the case of a mine, sodium cyanide solutions <0.1% by volume

200


Other materials (see note 2)



23


O3—Substances or mixtures that, when in contact with water or damp air, liberate toxic gas (where the toxic gas is classified as an Acute toxic gas of categories 1, 2 or 3) in potentially dangerous amounts

200

24


Substances or mixtures that are skin corrosives of subcategories 1A & 1B that react violently with water

500

Notes

1     The threshold quantities specified in Table 2 for explosive materials relate to the weight of explosive exclusive of packing, casings and non-explosive components. This weight of explosive is then multiplied by the relevant factor so that the final threshold quantity (in tonnes) has the equivalent effect of the weight of TNT. The descriptions of explosive materials are as set out in the ADG Code.

2     These descriptions are as set out in the GHS.


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