序言这是CSA Z275的第四版。4、潜水、高压舱和远程操作车辆操作的能力标准。它取代了之前在2012年、2002年和1997年出版的版本。本标准包含确定和测量职业潜水员、高压舱操作员、远程操作车辆技术人员及其相关团队成员能力水平的要求和性能规范。本标准适用于海上和近海作业。本标准新版基于2020版CSA Z275。2.它合并了以前限制和不限制自我的标准- 内置式水下呼吸器潜水进入一个新类别:职业性水下呼吸器潜水（见第6条）。为潜水教练设立了一个新的能力类别（见第5条）。为了与最新的国际标准保持一致，潜水钟潜水员的能力要求得到了广泛更新（见第17条）。配合2016版CSA Z275。1.对高压舱操作员的能力要求进行了微小修改（见第22条）。作为对2012版的询问和反馈的回应，对许多潜水类别的先决条件和能力要求进行了澄清。 本标准的用户必须理解，本标准中包含的要求是最低水平。本标准不具有法律效力，除非立法授权或有管辖权的机构的法规中引用。建议用户联系在用户所在地区有管辖权的地方当局，以确定本标准的引用程度。这些要求来自技术委员会成员之间的共识，他们代表着广泛的利益。由于在公众评论阶段广泛分发了一份草案，收到的公众评论鼓励和帮助了成员们。 CSA集团承认，该标准的制定部分是由于加拿大潜水员认证委员会的财政支持。本标准的制定符合加拿大标准委员会对加拿大国家标准的要求。CSA集团已将其作为加拿大国家标准发布。范围1。1概述本标准适用于与所有类型的工作和雇佣相关的职业潜水、高压设施和远程操作车辆（ROV）操作，并描述了与已识别的潜水或ROV操作技术直接相关的所有人员的最低能力水平要求。 加拿大的安全和健康立法要求所有工人都有能力执行分配给他们的工作。它要求具备所用潜水设备或ROV类型的理论和使用能力。本标准旨在为潜水员和ROV培训设施以及潜水和ROV行业提供不同级别的潜水员和ROV技术所需的统一最低能力水平。该能力水平将允许潜水员或ROV驾驶员/技术员安全、胜任地完成职业潜水员或ROV人员所需的特定任务。 注:人们认识到，某些水下任务可能需要专门的实践规范。有管辖权的当局可能会接受与本标准要求不同的能力水平。1.2潜水类型本标准规定了以下潜水类型的能力要求:a）职业（开路）自给式水下呼吸器（水肺）潜水；b） 地面供应潜水:i）空气（限制和非限制类别）；ii）氮氧化物（限制类和非限制类）；iii）混合气体；c）深潜: i） 贝尔技术；ii）饱和技术（SAT）；和iii）大气潜水系统（ADS）技术。1.3人员类型本标准规定了与第1.2条中规定的潜水技术相关的以下类型人员的能力要求:a）潜水员/飞行员；b） 投标书；c） 潜水主管；d） 高压舱操作员（HCO）；e） 生命支持技术员（LST）；f） 潜水医疗技术人员；g） 潜水安全专家；h） 潜水医师和高压医师；i）ROV飞行员/技术人员。1.4例外情况本标准不适用于仅为运动休闲或运动休闲训练而进行的潜水作业； b） 适用于第3.1条中定义的科学潜水；注:对于参与科学潜水的潜水员，请参考CAUS的科学潜水实践标准。c） 包括与水下潜水作业相关的工作技术；和d）包括未爆弹药（UXO）潜水作业的特殊能力要求（此类要求见CSA Z275.6）。1.5标准语言在本标准中，“应”用于表示要求，即用户有义务满足的规定，以符合标准；“应该”用于表示建议或建议但不需要的建议； “可”用于表示一个选项或在标准范围内允许的选项。注释随附条款不包括要求或替代要求；随附条款的注释的目的是将解释性或信息性材料与文本分开。表和图的注释被视为表或图的一部分，可以作为要求编写。附件被指定为规范性（强制性）或信息性（非强制性）以定义其应用。1.6测量单位国际单位制给出的数值为本标准中的记录单位。 括号中给出的值仅供参考和比较。

PrefaceThis is the fourth edition of CSA Z275.4, Competency Standard for diving, hyperbaric chamber, and remotely operated vehicle operations. It supersedes the previous editions published in 2012, 2002, and 1997. The Standard contains requirements and performance specifications for determining and measuring competency levels for occupational divers, hyperbaric chamber operators, remotely operated vehicle technicians, and their associated team members. The Standard applies to both offshore and inshore operations. This new edition of the Standard is based on the 2020 edition of CSA Z275.2. It amalgamates previous criteria for restricted and unrestricted self-contained underwater breathing apparatus (SCUBA) diving into a single new category: Occupational SCUBA diving (see Clause 6). A new competency category has been set for diving instructors (see Clause 5). In keeping with updated international standards, competency requirements for bell divers have been updated extensively (see Clause 17). In concert with the 2016 edition of CSA Z275.1, minor changes have been made to competency requirements for hyperbaric chamber operators (see Clause 22). In response to enquiries and feedback to the 2012 edition, clarifications have been made to prerequisite and competency requirements for many categories of diving. It must be understood by the user of this Standard that the requirements contained herein are minimum levels.This Standard does not have the force of law unless mandated by legislation or referenced in the regulations of the authority having jurisdiction. The user is advised to contact the local authority having jurisdiction in the user's area to determine to what extent this Standard is referenced. The requirements result from consensus among the Technical Committee members, who represent a broad spectrum of interests. The members were encouraged and aided by the public comments received because of the wide distribution of a draft at the public comment stage. CSA Group acknowledges that the development of this Standard was made possible, in part, by the financial support of the Diver Certification Board of Canada. This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group.Scope1.1 GeneralThis Standard applies to occupational diving, hyperbaric facility, and remotely operated vehicle (ROV) operations conducted in connection with all types of work and employment and describes the requirements for minimum competency levels for all personnel directly associated with the identified techniques of diving or ROV operations. Canadian safety and health legislation requires that all workers be competent to perform the work assigned to them. It requires competency in both the theory and use of the type of diving apparatus or ROV employed. This Standard has been established to provide diver and ROV training facilities and the diving and ROV industry with a uniform minimum level of competency necessary for the various levels of diver and ROV techniques. This level of competency will allow the diver or ROV pilot/technician to safely and competently complete the specific tasks required of occupational divers or ROV personnel.Note: It is recognized that certain underwater tasks can require specialized codes of practice. It is possible that competency levels that differ from the requirements of this Standard will be acceptable to the authority having jurisdiction.1.2 Types of divingThis Standard addresses competency requirements for the following types of diving: a) occupational (open-circuit) self-contained underwater breathing apparatus (SCUBA) diving; b) surface-supplied diving: i) air (restricted and unrestricted categories); ii) nitrox (restricted and unrestricted categories); and iii) mixed gas; and c) deep diving: i) bell techniques (bell); ii) saturation techniques (SAT); and iii) atmospheric diving system (ADS) techniques.1.3 Types of personnelThis Standard addresses the competency requirements for the following types of personnel associated with the diving techniques specified in Clause 1.2: a) divers/pilots; b) tenders; c) dive supervisors; d) hyperbaric chamber operators (HCOs); e) life-support technicians (LSTs); f) diving medical technicians (DMTs); g) diving safety specialists (DSSs); h) diving physicians and hyperbaric physicians; and i) ROV pilots/technicians.1.4 ExclusionsThis Standard does not a) apply to diving operations performed solely for sport recreation or sport recreation training; b) apply to scientific diving as defined in Clause 3.1; Note: For divers involved in scientific diving, refer to CAUS's Standard of Practice for Scientific Diving. c) include work techniques associated with underwater diving operations; and d) include special competency requirements for unexploded explosive ordnance (UXO) diving operations (see CSA Z275.6 for such requirements).1.5 Standard languageIn this Standard, "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 (non-mandatory) to define their application.1.6 Units of measurementThe 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.