18419 version 2 Page 1 of 4 Operate and maintain gas filtration equipment on a gas transmission pipeline system Level 4 Credits 3 Purpose This unit standard is for people working, or intending to work, in the gas transmission industry. People credited with this unit standard are, on a gas transmission pipeline system, able to: locate, identify, and interpret procedures for operating and maintaining gas filtration equipment, and explain associated hazards; operate and maintain gas filtration equipment; respond to deviations from normal conditions; and recommission gas filtration equipment. Subfield Gas Industry Domain Gas Transmission Operations Status Registered Status date 22 May 2009 Date version published 22 May 2009 Planned review date 31 December 2014 Entry information Prerequisite: Unit 18415, Demonstrate knowledge of gas filtration, and gas filtration and ancillary equipment, in the gas transmission industry, or demonstrate equivalent knowledge and skills. Accreditation Evaluation of documentation and visit by NZQA and industry. Standard setting body (SSB) NZ Motor Industry Training Organisation (Incorporated) (MITO) Accreditation and Moderation Action Plan (AMAP) reference 0114 This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do. Special notes 1 Performance of the elements of this unit standard must comply with relevant site requirements and the following legislation and documentation: Health and Safety in Employment Act 1992; Health and Safety in Employment (Pipelines) Regulations 1999; New Zealand Qualifications Authority 2016 18419 version 2 Page 2 of 4 NZS/AS 2885.1:1997 Pipelines – Gas and liquid petroleum – Design and construction. 2 Definition Company procedures refer to the documented methods for performing work activities and include health and safety, environmental, site requirements, and quality management requirements. They may refer to manuals, codes of practice, or policy statements. Elements and performance criteria Element 1 Locate, identify, and interpret procedures for operating and maintaining gas filtration equipment, and explain associated hazards on a gas transmission pipeline system. Performance criteria 1.1 Company procedures for operating and maintaining gas filtration equipment are located, and are interpreted in relation to specified job requirements. 1.2 Job instructions and system specifications are confirmed in accordance with company procedures. Range: 1.3 instructions include but are not limited to – site location, consents. Potential hazards associated with the operation and maintenance of gas filtration equipment are explained in accordance with company procedures. Range may include but are not limited to – flammable product, high pressure, loss of gas supply to customer, hazardous area consideration, contamination, damage to downstream equipment. Element 2 Operate and maintain gas filtration equipment on a gas transmission pipeline system. Performance criteria 2.1 Communication of the intended work activities is carried out with appropriate personnel prior to commencing work in accordance with company procedures. Range 2.2 may include but is not limited to – customer, control operator, area technician. Methods of isolating the filtration system from service without disrupting the gas supply are carried out in accordance with company procedures. New Zealand Qualifications Authority 2016 18419 version 2 Page 3 of 4 2.3 Filter elements are inspected, and if required replaced, in accordance with company procedures. Range 2.4 Incorrect application and operation of filtration system components are described in terms of consequences. Range 2.5 may include but is not limited to – differential pressure, valve position, local indicators, manufacturer’s instructions, liquid levels, visual inspection, filter element type, filter element orientation. may include but is not limited to – leaks, filter element damage, ineffective filtration, damage to down stream equipment, flow rate restrictions. Preventative maintenance and routine procedures are carried out in accordance with company procedures. Range may include but is not limited to – site specific maintenance system, filter monitoring, corrosion and coating inspections, thermal relief; routine procedures may include but are not limited to – log keeping, vessel certification inspections. Element 3 Respond to deviations from normal conditions of gas filtration equipment on a gas transmission pipeline system. Range may include but is not limited to – alarms, leaks, filter element damage, corrosion damage. Performance criteria 3.1 Deviations from normal operating conditions are identified, and the steps to avoid and recover from them are described in accordance with company procedures. 3.2 System specifications are identified and applied to the equipment being repaired, in accordance with system requirements. Range part number, pressure rating, location, condition, size, position, maximum flow-rate. 3.3 Components and component parts are sourced, fitted, and adjusted in accordance with manufacturer’s instructions. 3.4 Consequences of incorrect part selection and repair of equipment, and the steps to avoid them, are described in accordance with company procedures. Range may include but are not limited to – leaks, ineffective filtration, pressure rating degradation, incompatible materials for product. New Zealand Qualifications Authority 2016 18419 version 2 Page 4 of 4 Element 4 Recommission gas filtration equipment on a gas transmission pipeline system. Performance criteria 4.1 Communication of the intention to place the gas filtration system back into service is carried out with appropriate personnel in accordance with company procedures. 4.2 Gas filtration and ancillary equipment is purged and recommissioned in accordance with company procedures. 4.3 Gas filtration and ancillary equipment is tested for integrity in accordance with company procedures. 4.4 Disposal of used materials is carried out in accordance with company procedures to ensure there is no fire or environmental risk. Range 4.5 filter element, cleaning material, residual dust and debris. Documentation related to monitoring and maintaining the gas filtration equipment is completed and communication to all appropriate personnel is carried out in accordance with company procedures. 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 NZ Motor Industry Training Organisation (Incorporated) (MITO) info@mito.org.nz if you wish to suggest changes to the content of this unit standard. New Zealand Qualifications Authority 2016