25007 version 1 Page 1 of 4 Demonstrate knowledge of rail tunnel gas and use gas detection and protection equipment Level 2 Credits 3 Purpose People credited with this unit standard are able to: demonstrate knowledge of rail tunnel gas types, sources, and reasons for gas accumulation; demonstrate knowledge of exposure to rail tunnel gas; demonstrate knowledge of and use gas exposure protection equipment; and demonstrate knowledge of and use rail tunnel gas detection equipment. Subfield Rail Transport Domain Rail Core Skills Status Registered Status date 20 June 2008 Date version published 20 June 2008 Planned review date 31 December 2013 Entry information Open. Accreditation Evaluation of documentation by NZQA. Standard setting body (SSB) Competenz Accreditation and Moderation Action Plan (AMAP) reference 0013 This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do. Special notes 1 For the purposes of this unit standard, use of detection and protection equipment will be through a safe, controlled exercise, not necessarily involving a rail tunnel, but where environmental factors provide an opportunity for such equipment to function in the way that it is intended. 2 Legislation relevant to this unit standard includes the Health and Safety in Employment Act 1992, and the Railways Act 2005. 3 Workplace exposure standards relevant to this unit standard can be obtained from Workplace Exposure Standards (Wellington: Department of Labour, 2002) available at http://www.osh.dol.govt.nz/order/catalogue/pdf/wes2002.pdf. New Zealand Qualifications Authority 2016 25007 version 1 Page 2 of 4 4 Definition Organisational procedures refer to documents that include: worksite rules, codes, and practices; equipment operating instructions; documented quality management systems; and health and safety requirements. Elements and performance criteria Element 1 Demonstrate knowledge of rail tunnel gas types, sources, and reasons for gas accumulation. Performance criteria 1.1 Types of rail tunnel gas are identified by their compound name, and abbreviated form. Range 1.2 Sources of rail tunnel gas are identified in terms of gas type. Range 1.3 evidence is required for a minimum of two gas types. evidence is required for a minimum of two sources and two gas types. Reasons for rail tunnel gas accumulation are described in terms of contributing factors. Range factors may include but are not limited to – lack of ventilation, length of tunnel, train stalled in tunnel with engine running, locomotives in multiple. Element 2 Demonstrate knowledge of exposure to rail tunnel gas. Performance criteria 2.1 Those at risk of being exposed to rail tunnel gas are identified in terms of their relationship with the rail transport system. Range 2.2 evidence is required for a minimum of two types of at risk people. Workplace exposure standards are described in accordance with definitions outlined in Workplace Exposure Standards. Range may include but is not limited to – Time Weighted Average (TWA), Short Term Exposure Limit (STEL), ceiling value; evidence is required for a minimum of two workplace exposure standards. New Zealand Qualifications Authority 2016 25007 version 1 Page 3 of 4 2.3 Symptoms of exposure to rail tunnel gas are described in terms of gas type, length of exposure, and gas concentration. Range may include but is not limited to – eye irritation, shortness of breath, dizziness, fatigue, vomiting, loss of consciousness, cumulative effect; evidence is required for a minimum of two gas types with two symptoms for each. Element 3 Demonstrate knowledge of and use gas exposure protection equipment. Performance criteria 3.1 Equipment is identified in terms of types available. Range 3.2 Function and maintenance requirements of face mask and filter are described in accordance with organisational procedures. Range 3.3 evidence is required for a minimum of two types of equipment. may include but is not limited to – air purification, changing filter, cleaning and disinfecting mask, filter life. Equipment is used in accordance with organisational procedures, and gas type(s) present. Range may include but is not limited to – selecting filter, checking filter, donning mask, checking for leaks. Element 4 Demonstrate knowledge of and use rail tunnel gas detection equipment. Performance criteria 4.1 Detection equipment and accessories are identified in terms of purpose and function. Range 4.2 may include but is not limited to – electronic, chemical reaction tubes, single gas type, multi-gas type. Detection equipment is used in accordance with manufacturer’s instructions and/or organisational procedures. Range may include but is not limited to – calibration, date, on/off, menu selections, battery level. New Zealand Qualifications Authority 2016 25007 version 1 Page 4 of 4 4.3 Display information from detection equipment is read and interpreted in accordance with organisational procedures. Range may include but is not limited to – concentration in parts per million (ppm), % by volume, alarm levels. Please note Providers must be accredited by NZQA, or an inter-institutional body with delegated authority for quality assurance, before they can report credits from assessment against unit standards or deliver courses of study leading to that assessment. Industry Training Organisations must be accredited by NZQA before they can register credits from assessment against unit standards. Accredited providers and Industry Training Organisations assessing against unit standards must engage with the moderation system that applies to those standards. Accreditation requirements and an outline of the moderation system that applies to this standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The AMAP also includes useful information about special requirements for organisations wishing to develop education and training programmes, such as minimum qualifications for tutors and assessors, and special resource requirements. Comments on this unit standard Please contact the Competenz qualifications@competenz.org.nz if you wish to suggest changes to the content of this unit standard. New Zealand Qualifications Authority 2016