### Air Pollution Control (Dust and Grit Emission) Regulations 《空氣污染管制(塵埃及砂礫排放)規例》

5. Use of liquid fuel
(1) Except with the written permission of the Authority, no person shall use or cause or permit to be used in a burner of a furnace, oven or industrial plant a liquid fuel with a viscosity when delivered to the burner tip or point of ignition exceeding 30 centistokes or an equivalent viscosity. (17 of 1983 s. 50; L.N. 262 of 1987)
(2) The Authority shall not grant permission under paragraph (1) to use a liquid fuel unless he is satisfied that the use of that fuel in a burner of a furnace, oven or industrial plant will not result in the emission of dark smoke from that furnace, oven or industrial plant. (17 of 1983 s. 50)
(3) Any person who contravenes paragraph (1) shall be guilty of an offence and shall be liable on conviction to a fine at level 2. (E.R. 5 of 2022)

6. Power to take samples of dust and grit and take samples of liquid fuel
(1) The Authority or an authorized officer may— (17 of 1983 s. 50)
(a) take a sample of dust and grit emitted from any furnace, oven or industrial plant, or passing through any chimney or flue, for the purpose of—
(i) determining the concentration of dust and grit emission; or
(ii) size analysis of the dust and grit emission or determining the relative proportion of dust and grit burden in that emission; and (L.N. 262 of 1987)
(b) take a sample of liquid fuel from any burner of any furnace, oven or industrial plant in which liquid fuel is used, for the purpose of determining the temperature and viscosity of the liquid fuel at the burner tip or the point of ignition.
(2) The Authority or an authorized officer— (17 of 1983 s. 50)
(a) when taking a sample under paragraph (1)(a)(i), shall use the method set out in the Second Schedule;
(b) when taking a sample under paragraph (1)(a)(ii), shall use the method set out in the Third Schedule;
(c) when taking a sample under paragraph (1)(b), shall use the method set out in the Fourth Schedule; and
(d) when determining the temperature of a sample taken under paragraph (1)(b), shall use the method set out in the Fifth Schedule.
(3) The occupier of the premises upon which a sample is taken under paragraph (1)(a) shall be entitled to witness the taking of such sample.
(4) The person using the liquid fuel shall be entitled to witness the taking of a sample under paragraph (1)(b) and the determination of the temperature of such sample.
(L.N. 262 of 1987)

### Air Pollution Control (Dust and Grit Emission) Regulations 《空氣污染管制(塵埃及砂礫排放)規例》

7. Weighing of a sample
Where the Authority or an authorized officer takes a sample under regulation 6(1)(a)(ii), he shall weigh the sample as soon as is reasonably practicable and the occupier of the premises upon which the sample is taken shall be entitled, upon request made to the Authority or authorized officer and at such place and time as the Authority may determine, to witness the weighing of the sample and be informed of the weight.
(L.N. 262 of 1987)

8. Division of sample
(1) The Authority or an authorized officer who takes a sample under regulation 6(1)(a)(ii) or (b) shall divide the sample into three equal parts, each part to be marked and sealed or fastened up in such manner as its nature will permit and if the sample taken is dust or grit or both, it shall not be divided until it has been weighed in accordance with regulation 7. (17 of 1983 s. 50; L.N. 262 of 1987)
(2) When a sample is being divided under paragraph (1)—
(a) the occupier of the premises upon which the sample is taken, if it is dust or grit or both; or
(b) the person using the liquid fuel, if the sample is liquid fuel,
shall be entitled to witness the division and thereafter, shall be permitted to select and retain one of the three parts of the sample.
(3) Of the remaining two parts of the sample, the Authority or officer shall submit one to the Government Chemist for— (17 of 1983 s. 50)
(a) size analysis, if it is a sample of dust or grit or both; or
(b) determination of viscosity, if it is a sample of liquid fuel,
and shall retain the other.

### Air Pollution Control (Dust and Grit Emission) Regulations 《空氣污染管制(塵埃及砂礫排放)規例》

9. Size analysis and viscosity determination of sample
When a sample is submitted to the Government Chemist under regulation 8(3), the Government Chemist shall—
(a) if the sample is dust or grit or both—
(i) analyse it for size by such method as he thinks fit;
(ii) issue to the Authority or authorized officer who has submitted the sample, a certificate specifying the results of the size analysis of the sample, which certificate shall be in Form 1 in the Schedule to the Evidence Ordinance (Cap. 8); and
(iii) send, free of charge, to the occupier of the premises upon which the sample was taken, a copy of the certificate issued under subparagraph (ii); and
(b) if the sample is liquid fuel—
(i) determine its viscosity in accordance with any of the test procedures set out in the First Schedule;
(ii) issue to the Authority or authorized officer who has submitted the sample, a certificate specifying the result of the viscosity determination, which certificate shall be in Form 1 in the Schedule to the Evidence Ordinance (Cap. 8); and
(iii) send, free of charge, to the person using the liquid fuel a copy of the certificate issued under subparagraph (ii).
(17 of 1983 s. 50)

10. Emission of dust or grit
If dust or grit is emitted from any furnace, oven, chimney, flue or industrial plant in excess of the limits set out in the Sixth Schedule, the occupier of the premises upon which the furnace, oven, chimney, flue or industrial plant is situated shall be guilty of an offence and shall be liable on conviction to a fine at level 2 and, in addition, to a fine of $50 for each day during which it is proved that the offence has continued.
(L.N. 262 of 1987; E.R. 5 of 2022) 

### Air Pollution Control (Fuel Restriction) Regulations 《空氣污染管制(燃料限制)規例》

1. Citation
(E.R. 5 of 2022)(1) These regulations may be cited as the Air Pollution Control (Fuel Restriction) Regulations.
(2) (Omitted as spent—E.R. 5 of 2022)