PrefaceThis is the first edition of CSA Z275.6, Unexploded explosive ordnance (UXO) and munitions diving. It is part of a series of Standards on occupational diving, hyperbaric facilities, and work in compressed air environments.
This Standard applies to occupational diving operations conducted in connection with unexploded explosive ordnance (UXO) and specifies minimum competency level requirements for all personnel directly associated with the techniques of UXO diving identified in this Standard and additional requirements for occupational safety during UXO diving operations.
1.2 UXO diving competencies
This Standard specifies competency requirements for:
(a) occupational (open-circuit) self-contained underwater breathing apparatus (SCUBA) diving; and
(b) surface-supplied diving, as follows:
(i) restricted, surface-supplied;
(ii) unrestricted, surface-supplied; and
(iii) mixed gas.
This Standard specifies competency requirements for the following personnel associated with the diving techniques specified in Clause 1.2.1 as they relate to UXO diving:
(a) UXO SCUBA diver (see Clause 5);
(b) UXO SCUBA tender (see Clause 6);
(c) UXO SCUBA supervisor (see Clause 7);
(d) UXO restricted surface-supplied diver (see Clause 8);
(e) UXO surface-supplied tender (see Clause 9);
(f) UXO restricted surface-supplied supervisor (see Clause 10);
(g) UXO unrestricted surface-supplied diver (see Clause 11);
(h) UXO unrestricted surface-supplied supervisor (see Clause 12);
(i) UXO surface-supplied mixed-gas diver (see Clause 13);
(j) UXO surface-supplied mixed-gas tender (see Clause 14); and
(k) UXO surface-supplied mixed-gas supervisor (see Clause 15).
Note: These categories of occupational diving personnel correspond with the categories of occupational diving personnel specified in CAN/CSA-Z275.4, but with the addition of the prefix "UXO" to identify the additional endorsement of UXO diving competency as specified in this Standard.
1.3 Dual dimensions
The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only.
In CSA standards, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; "should" is used to express a recommendation or that which is advised but not required; and "may" is used to express an option or that which is permissible within the limits of the standard.
Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.
Notes to tables and figures are considered part of the table or figure and may be written as requirements.
Annexes are designated normative (mandatory) or informative (nonmandatory) to define their application.