S-2.1, r. 4 - Safety Code for the construction industry

Section 9.2.8 Disposition versions

2015-12-10

9.2.8. (Revoked).

R.R.Q., 1981, c. S-2.1, r. 6, s. 9.2.8; O.C. 1005-2015, s. 1.

2012-09-01

9.2.8. Decompression procedure:

(1)  The employer shall ensure that no worker goes from his place of work to atmospheric pressure without going through decompression in the intermediate air lock.

(2)  The decompression procedure shall be as follows:

(a)  when the maximum pressure is under 40 kPa, the pressure shall be reduced at a rate not exceeding 35 kPa per minute;

(b)  when the maximum pressure is 40 kPa or more, the pressure shall be reduced in 3 stages as follows:

i.  the first stage shall be a reduction from maximum pressure to one-half maximum pressure, at a rate not exceeding 35 kPa per minute;

ii.  the second stage shall be a reduction from one-half maximum pressure to 1/4 maximum pressure, at a rate not exceeding 14 kPa per minute; and

iii.  the third stage shall be a reduction from 1/4 maximum pressure to atmospheric pressure, at a rate not exceeding:

(A)  3.5 kPa per minute when the maximum pressure is not over 140 kPa; or

(B)  1.7 kPa per minute when the maximum pressure is over 140 kPa but not more than 350 kPa.

(3)  A copy of Schedule 3.2 giving decompression periods shall be posted at the controls and in each air lock.

R.R.Q., 1981, c. S-2.1, r. 6, s. 9.2.8.