Whois & Analysis for chemixgases.com

Gas is one of the four fundamental states of matter.

The others are solid, liquid, and plasma.

A pure gas may be made up of individual atoms (e.g. a noble gas like neon), elemental molecules made from one type of atom (e.g. oxygen), or compound molecules made from a variety of atoms (e.g. carbon dioxide).

A gas mixture, such as air, contains a variety of pure gases.

What distinguishes a gas from liquids and solids is the vast separation of the individual gas particles.

This separation usually makes a colourless gas invisible to the human observer.

Accuracy and precision are two measures of observational error.

Accuracy is how close a given set of measurements (observations or readings) are to their true value, while precision is how close the measurements are to each other.

In measurement technology and metrology, calibration is the comparison of measurement values delivered by a device under test with those of a calibration standard of known accuracy.

Such a standard could be another measurement device of known accuracy, a device generating the quantity to be measured such as a voltage, a sound tone, or a physical artifact, such as a meter ruler.

Reliability engineering is a sub-discipline of systems engineering that emphasizes the ability of equipment to function without failure.

Reliability describes the ability of a system or component to function under stated conditions for a specified period of time.

Reliability is closely related to availability, which is typically described as the ability of a component or system to function at a specified moment or interval of time.

A medical device is any device intended to be used for medical purposes.

Significant potential for hazards are inherent when using a device for medical purposes and thus medical devices must be proved safe and effective with reasonable assurance before regulating governments allow marketing of the device in their country.

As a general rule, as the associated risk of the device increases the amount of testing required to establish safety and efficacy also increases.

Further, as associated risk increases the potential benefit to the patient must also increase.