Safe Working Distance 
The minimum distance that should be maintained between a hazard and a worker.
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Safe Working Load
This can mean either the maximum load which can be safely lifted by lifting equipment or the maximum load a van / lorry can carry where it is uniformly distributed.
Safe Working Practice
Documented guidelines and working methods which identifies how a task or tasks can be carried out with minimum risk to a worker (thereby including a risk assessment) , bystanders and others, or features in their working environment, for example, buildings, cars, etc. A safe working practice might also be called a safe system of work, which in this context is limited to the particular activity being documented, rather than a wider more general provision of an organisation wide safe system of work which encompasses all systems aspects such as quality assurance, quality control, etc.
Safe Working Zone
A designated area that primarily aims to keep people safe from being harmed or injured from work activities.
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Safety Zone
A designated area used to protect workers from a hazard, such as passing vehicles on a road, which may be required when mowing, or maintaining, roadside verges.
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Signboard
This is defined in the Health and Safety (Safety Signs and Signals) Regulations 1996 as “a sign which provides information or instructions by a combination of geometric shape, colour and a symbol or pictogram and which is rendered visible by lighting of sufficient intensity;” .
Standard Operating Procedure
A detailed step by step guide for the carrying out of a range of activities. An employer will typically have a wide range of these procedures in place to help employees efficiently, effectively and safely carry out routine work activities, such as mowing a grass sward. A standard operating procedure includes the findings of a risk assessment and these, along with the other working descriptions, create a comprehensive procedure which are to be followed in a responsible manner, minimising the likelihood of harm or injury occurring to a user or passer-by, or damage occurring to the equipment or m
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Symbol
A graphic which helps to convey relevant information quickly and succinctly. It is defined in the Health and Safety (Safety Signs and Signals) Regulations 1996 as “a figure which describes a situation or prescribes behaviour and which is used on a signboard or illuminated surface;”. Safety symbols, with their main colour, are classified as either Emergency (Green); Mandatory (Blue); Prohibition (Red); or Warning (Yellow).
Time-Weighted Average
Time periods which are used for workplace exposure limits (WELs), with two periods of 8-hours (long-term exposure limits - LTELs) and 15-minutes (short-term exposure limits - STELs) being commonly used. “Both the long-term and short-term exposure limits are expressed as airborne concentrations averaged over a specified period of time.” (Source: EH40/2005 Workplace exposure limits, HSE, p.28, https://www.hse.gov.uk/pubns/books/eh40.htm, accessed 10th June 2022)
Tolerability of Risk
A risk management framework (abbreviated to TOR) which assesses the risks of a hazardous activity and the toleration of risk and concerns involved with the activity which an individual or organisation is willing to accept. Implementing the concept of TOR promotes a positive safety culture in the workplace, leading to reduced accidents and incidents and contributes to a more productive and enjoyable working environment.
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