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The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included. |
Factors affecting site selection may include: | entry and exit points bottom conditions aquatic life environmental conditions |
Industry technical and safety criteria may include: | British Sub-Aqua Club (BSAC) Professional Association of Diving Instructors (PADI) SCUBA Schools International (SSI). |
Relevant legislation may include: | occupational health and safety permits or permission for access environmental regulations marine regulations. |
Organisational policies and procedures may include: | occupational health and safety communication protocols code of ethics manufacturer's recommendations. |
Hazards may include: | temperature extremes slippery or unstable terrain dangerous animals and insects stinging trees and nettles dense vegetation group management hazards. |
Physics and physiology may include: | pressure or volume or density relationships temperature buoyancy respiration air consumption ingassing and offgassing decompression sickness nitrogen narcosis oxygen toxicity carbon monoxide toxicity hypothermia. |
Risks may include: | hypothermia heat exhaustion injuries exhaustion lost party or party member equipment failure |
Relevant sources may include: | Bureau of Meteorology media land managers and agencies costal patrol or coastguard volunteer rescue local knowledge |
Weather and environmental information may include: | satellite images daily and weekly forecasts maximum and minimum temperatures weather warnings event warnings river levels synoptic charts high and low tide predictions. |
Plan may include: | objectives date, time and duration of dive site and equipment suitable buddy time, depth and air supply limits safety and emergency procedures. |
SCUBA dive equipment may include: | fins mask snorkel wetsuit or drysuits buoyancy control device (BCD) with low pressure inflator compressed air cylinder and valve regulator and backpack alternate air source submersible pressure gauge timing device depth gauge no-decompression tables computer weight belt and weights diver's tools communication equipment navigation equipment. |
Diver's needs and characteristics may include: | age cultural and situational factors previous experience and knowledge physical development diver's build, weight and lung capacity. |
Entries to and exits from water may include: | off-shore off dive boats. |
SCUBA diving techniques may include: | entries to and exits from the water equipment recovery and replacement in water buddy system buoyancy control underwater navigation use of a regulator descending and ascending equalising pressure self and buddy rescues bearings or reciprocal bearings dive calculations air supply monitoring open water diving at depths between 5 and 18 metres for a period of at least 20 minutes safety stops at 5 metres for 3 - 5 minutes slowly ascending at a rate that does not exceed 18 metres per minute. |
Buddy system may include: | selecting equipment checking buddy's equipment before a dive checking depth, time and air supply limits providing emergency assistance. |
Emergency out of air techniques may include: | alternative air source assisted ascent controlled emergency swimming ascent tired diver assist sharing air unconscious diver rescue. |
Self and buddy rescue may include: | buddy secured and towed 15 metres |
Relevant aspects may include: | objectives planning process activity site weather equipment selection clothing selection food selection instructional content instructional technique assessment technique group feedback directing techniques rescue techniques employed. |