![MER No](https://upload.wikimedia.org/wikipedia/commons/9/93/MER_No.6.jpg)
Durability is the ability of a physical
product
Product may refer to:
Business
* Product (business), an item that serves as a solution to a specific consumer problem.
* Product (project management), a deliverable or set of deliverables that contribute to a business solution
Mathematics
* Produ ...
to remain functional, without requiring excessive
maintenance
Maintenance may refer to:
Biological science
* Maintenance of an organism
* Maintenance respiration
Non-technical maintenance
* Alimony, also called ''maintenance'' in British English
* Champerty and maintenance, two related legal doctrine ...
or repair, when faced with the challenges of normal operation over its
design lifetime
The design life of a component or product is the period of time during which the item is expected by its designers to work within its specified parameters; in other words, the life expectancy of the item. It is not always the actual length of tim ...
. There are several measures of durability in use, including years of life, hours of use, and number of operational cycles. In
economics
Economics () is the social science that studies the Production (economics), production, distribution (economics), distribution, and Consumption (economics), consumption of goods and services.
Economics focuses on the behaviour and intera ...
, goods with a long
usable life are referred to as
durable good
In economics, a durable good or a hard good or consumer durable is a good that does not quickly wear out or, more specifically, one that yields utility over time rather than being completely consumed in one use. Items like bricks could be consid ...
s.
Requirements for product durability
Product durability is predicated by good
repairability
Repairability is a measure of the degree to and ease with which a product can be repaired and maintained, usually by end consumers. Repairable products are put in contrast to obsolescence or products designed with planned obsolescence.
Repair ...
and
regenerability in conjunction with
maintenance
Maintenance may refer to:
Biological science
* Maintenance of an organism
* Maintenance respiration
Non-technical maintenance
* Alimony, also called ''maintenance'' in British English
* Champerty and maintenance, two related legal doctrine ...
.
Every durable product must be capable of adapting to technical, technological and design developments.
[ This must be accompanied by a willingness on the part of consumers to forgo having the "very latest" version of a product.
In the United Kingdom, durability as a characteristic relating to the quality of goods that can be demanded by consumers was not clearly established until an amendment of the ]Sale of Goods Act 1979
The Sale of Goods Act 1979c 54 is an Act of the Parliament of the United Kingdom which regulated English contract law and UK commercial law in respect of goods that are sold and bought. The Act consolidated the original Sale of Goods Act 1893 ...
relating to the quality standards for supplied goods in 1994.
Product life spans and sustainable consumption
The lifespan of household goods is a significant factor in sustainable consumption
Sustainable consumption (sometimes abbreviated to "SC") is the use of products and services in ways that minimize impacts on the environment in order for human needs to be met in the present but also for future generations. Sustainable consumption ...
. Longer product life spans can contribute to eco-efficiency and sufficiency, thus slowing consumption in order to progress towards a sustainable level of consumption. Cooper (2005) proposed a model to demonstrate the crucial role of product lifespan
Product lifetime or product lifespan is the time interval from when a product is sold to when it is discarded.
Product lifetime is slightly different from service life because the latter consider only the effective time the product is used. It is ...
s to sustainable production
Sustainable products are those products that provide environmental, social and economic benefits while protecting public health and environment over their whole life cycle, from the extraction of raw materials until the final disposal.
Scope ...
and consumption.
Types of durability
Durability can encompass several specific physical properties of designed products, including:
* Ageing (of polymers)
* Dust resistance
*Resistance to fatigue
Fatigue describes a state of tiredness that does not resolve with rest or sleep. In general usage, fatigue is synonymous with extreme tiredness or exhaustion that normally follows prolonged physical or mental activity. When it does not resolve ...
* Fire resistance
*Radiation hardening
Radiation hardening is the process of making electronic components and circuits resistant to damage or malfunction caused by high levels of ionizing radiation (particle radiation and high-energy electromagnetic radiation), especially for environ ...
*Thermal resistance
Thermal resistance is a heat property and a measurement of a temperature difference by which an object or material resists a heat flow. Thermal resistance is the reciprocal of thermal conductance.
* (Absolute) thermal resistance ''R'' in kelvin ...
*Rot-proof
Rot-proof or rot resistant is a condition of preservation or protection, by a process or treatment of materials used in industrial manufacturing or production to prevent biodegradation and chemical decomposition. Decomposition is a factor in wh ...
ing
*Rustproof
Rustproofing is the prevention or delay of rusting of iron and steel objects, or the permanent protection against corrosion. Typically, the protection is achieved by a process of surface finishing or treatment. Depending on mechanical wear or en ...
ing
*Toughness
In materials science and metallurgy, toughness is the ability of a material to absorb energy and plastically deform without fracturing.[Waterproofing
Waterproofing is the process of making an object or structure waterproof or water-resistant so that it remains relatively unaffected by water or resisting the ingress of water under specified conditions. Such items may be used in wet environme ...]
See also
*Availability
In reliability engineering, the term availability has the following meanings:
* The degree to which a system, subsystem or equipment is in a specified operable and committable state at the start of a mission, when the mission is called for at a ...
*Consumables
Consumables (also known as consumable goods, non-durable goods, or soft goods) are goods that are intended to be consumed. People have, for example, always consumed food and water. Consumables are in contrast to durable goods. Disposable produc ...
**Disposable product
A disposable (also called disposable product) is a product designed for a single use after which it is recycled or is disposed as solid waste. The term is also sometimes used for products that may last several months (e.g. disposable air filter ...
*Durable good
In economics, a durable good or a hard good or consumer durable is a good that does not quickly wear out or, more specifically, one that yields utility over time rather than being completely consumed in one use. Items like bricks could be consid ...
*Interchangeable parts
Interchangeable parts are parts ( components) that are identical for practical purposes. They are made to specifications that ensure that they are so nearly identical that they will fit into any assembly of the same type. One such part can freely r ...
*Maintainability
In engineering, maintainability is the ease with which a product can be maintained to:
* correct defects or their cause,
* Repair or replace faulty or worn-out components without having to replace still working parts,
* prevent unexpected working ...
*Product life
Product lifetime or product lifespan is the time interval from when a product is sold to when it is discarded.
Product lifetime is slightly different from service life because the latter consider only the effective time the product is used. It is ...
*Product stewardship
Product stewardship is an approach to managing the environmental impacts of different products and materials and at different stages in their production, use and disposal. It acknowledges that those involved in producing, selling, using and dispos ...
*Throwaway society
The throw-away society is a generalised description of human social concept strongly influenced by consumerism, whereby the society tends to use items once only, from disposable packaging, and consumer products are not designed for reuse or life ...
*Waste minimization
Waste minimisation is a set of processes and practices intended to reduce the amount of waste produced. By reducing or eliminating the generation of harmful and persistent wastes, waste minimisation supports efforts to promote a more sustainab ...
References
{{reflist
Broad-concept articles
Materials science
Waste minimisation