Commonwealth Consolidated Regulations

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WORK HEALTH AND SAFETY REGULATIONS 2011 - SCHEDULE 15

Hazardous chemicals at major hazard facilities (and their threshold quantity)

(Chapter   9)

 

1   Definitions

    In this Schedule:

"Class" has the same meaning as in the ADG Code.

"Division" has the same meaning as in the ADG Code.

"Packing Group" has the same meaning as in the ADG Code.

"subsidiary risk" has the same meaning as in the ADG Code.

2   Relevant hazardous chemicals

    The hazardous chemicals that characterise a workplace as a facility for the purposes of these Regulations are the chemicals specifically referred to in table 15.1 and chemicals that belong to the types, classes and categories referred to in table 15.2.

3   Threshold quantity of one hazardous chemical

  (1)   In relation to each hazardous chemical referred to in clause   2, column 3 of Tables 15.1 and 15.2 provides a quantity that is described as the 'threshold quantity' of that chemical.

  (2)   If a hazardous chemical is referred to in table 15.1, the threshold quantity of the chemical is that described in table 15.1, whether or not the chemical also belongs to a type, class or category referred to in table 15.2.

  (3)   If a hazardous chemical is not referred to in table 15.1, and the chemical belongs to a type, class or category referred to in table 15.2, the threshold quantity of that chemical is that of the type, class or category to which it belongs.

  (4)   If a hazardous chemical is not referred to in table 15.1, and the chemical appears to belong to more than one of the types, classes or categories referred to in table 15.2, the threshold quantity of that chemical is that of the relevant type, class or category which has the lower or lowest threshold quantity.

4   Threshold quantity of more than one hazardous chemical

    If there is more than one hazardous chemical, a threshold quantity of chemicals exists where, if a number of chemicals are present, the result of the following aggregation formula exceeds 1:

    Start formula start fraction q start subscript x end subscript over Q start subscript x end subscript end fraction plus start fraction q start subscript y end subscript over Q start subscript y end subscript end fraction plus open square bracket ellipsis close square bracket plus start fraction q start subscript n end subscript over Q start subscript n end subscript end fraction end formula

where:

  (a)   x, y, [....] and n are the hazardous chemicals present or likely to be present;

  (b)   q x , q y , [....] and q n is the total quantity of hazardous chemicals x, y, [....] and n present or likely to be present, other than:

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

  (ii)   hazardous chemicals that are solely the subject of intermediate temporary storage, while in transit by road or rail (unless it is reasonably foreseeable that, despite the transitory nature of the storage, hazardous chemicals are or are likely to be present frequently or in significant quantities);

  (c)   Q x , Q y , [....] and Q n is the individual threshold quantity for each hazardous chemical x, y, [....] and n;

  (d)   a hazardous chemical is present or likely to be present in an isolated quantity , for subparagraph   (b)(i), if its location at the facility is such that it cannot, on its own, act as an initiator of a major incident.

5   How table 15.1 must be used

  (1)   The UN number listed in table 15.1 against the named hazardous chemical does not restrict the meaning of the name, which also applies to hazardous chemicals that fall outside the UN number.

Examples:

1       The hazardous chemicals are too dangerous to be transported.

2       The hazardous chemicals are part of mixtures covered by a different UN number.

  (2)   Any hazardous chemicals that are covered by the listed UN numbers must be included in the quantity of the chemical named.

6   How table 15.2 must be used

  (1)   The quantities specified for explosives in table 15.2 relate to the weight of explosive exclusive of packagings, casings and other nonexplosive components.

  (2)   If explosives of different hazard divisions are present in the same area or storage, all of the explosives must, before table 15.2 is applied, be classified in accordance with the following table:

 

Div.

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

Table 15.1

 

Item

Hazardous chemical

UN Nos included under name

Threshold quantity (tonnes)

1

ACETONE CYANOHYDRIN

1541

20

2

ACETYLENE

1001

50

3

ACROLEIN

1092

200

4

ACRYLONITRILE

1093

200

5

ALLYL ALCOHOL

1098

20

6

ALLYLAMINE

2334

200

7

AMMONIA, ANHYDROUS, LIQUEFIED or AMMONIA SOLUTIONS, relative density less than 0.880 at 15 degrees C in water, with more than 50% ammonia

1005

200

8

AMMONIUM NITRATE FERTILISERS

2067

2068

2069

2070

5   000

9

AMMONIUM NITRATE, with not more than 0.2% combustible substances, including any organic substance calculated as carbon, to the exclusion of any other added substance

1942

2   500

10

ARSENIC PENTOXIDE, Arsenic (V) Acid and other salts

1559

10

11

ARSENIC TRIOXIDE, Arsenious (III) Acid and other salts

1561

0.1

12

ARSINE

2188

1.0

13

BROMINE or BROMINE SOLUTIONS

1744

100

14

CARBON DISULFIDE

1131

200

15

CHLORINE

1017

25

16

DIOXINS

--

0.1

17

ETHYL NITRATE

--

50

18

ETHYLENE DIBROMIDE

1605

50

19

ETHYLENE OXIDE

1040

50

20

ETHYLENEIMINE

1185

50

21

FLUORINE

1045

25

22

FORMALDEHYDE (greater than 90%)

--

50

23

HYDROFLUORIC ACID SOLUTION (greater than 50%)

1790

50

24

HYDROGEN

1049

50

25

HYDROGEN CHLORIDE

 

 

 

--Anhydrous

1050

250

 

--Refrigerated Liquid

2186

250

26

HYDROGEN CYANIDE

1051

1614

20

27

HYDROGEN FLUORIDE

1052

50

28

HYDROGEN SULFIDE

1053

50

29

LP GASES

1011

1012

1075

1077

1978

200

30

METHANE or NATURAL GAS

1971

1972

200

31

METHYL BROMIDE

1062

200

32

METHYL ISOCYANATE

2480

0.15

33

OXIDES OF NITROGEN, including nitrous oxide, nitrogen dioxide and nitrogen trioxide

1067

1070

1660

1975

2201

2421

50

34

OXYGEN

1072

1073

2   000

35

PHOSGENE

1076

0.75

36

PROPYLENE OXIDE

1280

50

37

PROPYLENEIMINE

1921

200

38

SODIUM CHLORATE, solid

1495

200

39

SULFUR DICHLORIDE

1828

1

40

SULFUR DIOXIDE, LIQUEFIED

1079

200

41

SULFURIC ANHYDRIDE (Alt. SULFUR TRIOXIDE)

1829

75

42

TITANIUM TETRACHLORIDE

1838

500

43

TOLUENE DIISOCYANATE

2078

200

Table 15.2

 

Item

Hazardous chemical

Description

Threshold quantity (tonnes)

1

Explosive materials

Explosive of Division   1.1A

10

 

 

All other explosives of Division   1.1

50

 

 

Explosive of Division   1.2

200

 

 

Explosive of Division   1.3

200

2

Compressed and liquefied gases

Compressed or liquefied gases of Division   2.1 or Subsidiary Risk 2.1

200

 

 

Liquefied gases of Subsidiary Risk 5

200

 

 

Compressed or liquefied gases that meet the criteria for Very Toxic in table 15.3

20

 

 

Compressed or liquefied gases that meet the criteria for Toxic in table 15.3

200

3

Flammable materials

Liquids that meet the criteria for Class 3 Packing Group I Materials (except for crude oil in remote locations)

200

 

 

Crude oil in remote locations that meet the criteria for Class 3 Packing Group I

2000

 

 

Liquids that meet the criteria for Class 3 Packing Group II or III

50   000

 

 

Liquids with flash points <61°   C kept above their boiling points at ambient conditions

200

 

 

Materials that meet the criteria for Division   4.1 Packing Group I

200

 

 

Spontaneously combustible materials that meet the criteria for Division   4.2 Packing Group I or II

200

 

 

Materials that liberate flammable gases or react violently on contact with water which meet the criteria for Division   4.3 Packing Group I or II

200

 

 

Materials that belong to Classes 3 or 8 Packing Group I or II which have Hazchem codes of 4WE (materials that react violently with water)

500

4

Oxidising materials

Oxidising material listed in Appendix A to the ADG Code

50

 

 

Oxidising materials that meet the criteria for Division   5.1 Packing Group I or II

200

5

Peroxides

Peroxides that are listed in Appendix A to the ADG Code

50

 

 

Organic Peroxides that meet the criteria for Division   5.2

200

6

Toxic solids and liquids

Materials that meet the criteria for Very Toxic in table 15.3 except materials that are classified as Infectious Substances (Division   6.2) or as Radioactive (Class   7)

20

 

 

Materials that meet the criteria for Toxic in table 15.3

200

Table 15.3--Criteria for toxicity

 

15.3--Criteria for toxicity

Item

Description

Oral Toxicity 1
LD 50 (mg/kg)

Dermal Toxicity 2
LD 50 (mg/kg)

Inhalation Toxicity 3
LC 50 (mg/L)

1

Very Toxic

LD 50 ≤ 5

LD 50 ≤ 40

LC 50 ≤ 0.5

2

Toxic

5 < LD 50 ≤ 50

40 <LD 50 ≤ 200

0.5 <LC 50 ≤ 2

Key

1   In rats

2   In rats or rabbits

3   4 hours in rats


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