1975 Ed.]
Factories and Industrial Undertakings (Abrasive Wheels) Regulations
[CAP. 59
L3
[Subsidiary]
Application.
3. Subject to regulation 4, these regulations shall apply to any abrasive wheel used for any grinding or cutting operation in any industrial undertaking.
4. (1) Regulations 5, 6, 9(a) and (b) and 10 shall not apply to any abrasive wheel manufactured of metal, wood or rubber and having any surface consisting wholly or partly of abrasive material.
(2) Regulations 9(a) and (b) and 10 shall not apply to any abrasive wheel which consists wholly of abrasive particles held together by natural bonds.
(3) Regulation 5 shall not apply to any abrasive wheel having separate segments of abrasive material.
(4) Regulations 5, 6, 8(1), 9 and 10 shall not apply to any abrasive wheel which—
(i) does not exceed 235 millimetres in diameter;
(ii) is manufactured of rubber; and
(iii) has any surface consisting wholly or partly of abrasive material,
when that abrasive wheel is used in a portable machine.
(5) Regulations 6, 8(1), 9 and 10 shall not apply to any abrasive wheel when it is used for the grinding of glass.
(6) Regulations 5, 6 and 10 shall not apply to any wheel, disc or saw to any surface of which, in each case, is attached a rim or segments consisting of diamond abrasive particles.
PART II
DUTIES OF PROPRIETORS
5. (1) No abrasive wheel having a diameter of more than 55 millimetres shall be taken into use in any industrial undertaking for the first time in that industrial undertaking after the coming into operation of these regulations unless the abrasive wheel or its washer is clearly marked, in English or Chinese, with the maximum permissible speed in revolutions per minute specified by the manufacturer of that wheel.
(2) No abrasive wheel having a diameter of 55 millimetres or less shall be taken into use in any industrial undertaking for the first time in that industrial undertaking after the coming into operation of these regulations unless there is kept permanently fixed in the room in which grinding is ordinarily carried out with that wheel a notice, in English and Chinese, stating the maximum permissible speed in revolutions per minute specified by the manufacturer for that abrasive wheel or for abrasive wheels of the class to which that abrasive wheel belongs and, in the case of mounted wheels and points, the overhang permissible at that speed:
Speeds of abrasive wheels.