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Related Concept Videos

Units and Standards of Measurement01:10

Units and Standards of Measurement

A physical quantity is defined either by specifying its measurement method or by stating how it is calculated from other measurements. For example, consider a metallic cube. We might define its mass and dimensions by specifying methods for measuring them, such as using a weighing machine and a meter scale. Then, we could define the volume by stating that it is the cube of its side, and we could calculate the density as the mass divided by the volume.
Measurements of physical quantities are...
Units and Standards of Measurement01:10

Units and Standards of Measurement

A physical quantity is defined either by specifying its measurement method or by stating how it is calculated from other measurements. For example, consider a metallic cube. We might define its mass and dimensions by specifying methods for measuring them, such as using a weighing machine and a meter scale. Then, we could define the volume by stating that it is the cube of its side, and we could calculate the density as the mass divided by the volume.
Measurements of physical quantities are...
Measurement: Standard Units03:38

Measurement: Standard Units

Every measurement provides three kinds of information: the size or magnitude of the measurement (a number), a standard of comparison for the measurement (a unit), and an indication of the uncertainty of the measurement. While the number and unit are explicitly represented when a quantity is written, the uncertainty is an aspect of the errors in the measurement results.
International System of Units01:29

International System of Units

The International System of Units, known as the SI system, is a universally accepted measurement system recognized and used worldwide. The SI system is based on a set of three base units considered absolute, and their values do not change with location. These base units are meters, kilograms, and seconds.
Prefixes are used to define both larger and smaller quantities in the SI system. For example, milli, micro, and nano define smaller quantities, while kilo, mega, and giga are used to define...
SI Units: 2019 Redefinition01:13

SI Units: 2019 Redefinition

Measurement is an indispensable part of analytical chemistry. The result of measurement helps quantify a substance's physical property and compare it with the physical property of another substance. Each measurement comprises two components - a number indicating the magnitude and a unit of measurement as a standard for comparison. Further, the same quantity can be measured using different units of measurement, which leads to differences in magnitude.
A standard set of units has been defined to...
Units of Measurement01:27

Units of Measurement

Mechanical engineering is one of the oldest branches of engineering. It deals with designing, analyzing, and manufacturing machines and mechanical systems. To ensure precise and accurate calculations, units of measurement are used. They provide a standard system for expressing and comparing physical quantities.
There are various well-known historical measurement systems, such as the Babylonian system, the Roman system, the Egyptian system, the Olympian system, the British system, and the Indus...

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Standardization of Basket Use in Sialendoscopy: A Ten-Year Retrospective Study
09:36

Standardization of Basket Use in Sialendoscopy: A Ten-Year Retrospective Study

Published on: June 6, 2025

21 century - still no standardization.

Urmila Palaria1, Dc Punera, Ak Sinha

  • 1Assistant Prof., Department of Anaesthesiology, UFHT Medical College, Haldwani- Nainital(uttarakhand).

Indian Journal of Anaesthesia
|July 20, 2010
PubMed
Summary
This summary is machine-generated.

Standardizing anesthesia equipment, like endotracheal tubes, is crucial for patient safety and medico-legal compliance. Global and national bodies establish standards, ensuring safer anesthesia and critical care practices worldwide.

Keywords:
Anaesthetic equipmentEndotracheal tubeIndian Society of AnaesthesiologistsStandardization

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Area of Science:

  • Medical Devices
  • Anesthesiology
  • Regulatory Affairs

Background:

  • Safe anesthetic practice relies on standardized equipment.
  • Global organizations and regulatory bodies set standards for anesthesia equipment, including endotracheal tubes.
  • Compliance with standards like ASTM is essential.

Purpose of the Study:

  • To highlight the importance of standardization in anesthetic equipment.
  • To emphasize the role of regulatory bodies and professional societies in ensuring equipment safety.
  • To advocate for the formation of standards for various equipment in India.

Main Methods:

  • Review of existing standards and regulatory frameworks for anesthesia equipment.
  • Discussion of the role of organizations like ASTM and the Indian Society of Anaesthesiologists.
  • Analysis of the impact of standardization on patient safety.

Main Results:

  • Endotracheal tubes must conform to ASTM standards for medico-legal importance.
  • Regulatory bodies oversee the entire process from manufacturing to user.
  • Standards have significantly improved the safety of anesthesia and critical care equipment over time.

Conclusions:

  • Standardization of anesthetic equipment is imperative for safe practice.
  • There is a need to establish comprehensive standards for various equipment in India.
  • Collaboration between manufacturers, regulatory bodies, and users is vital for effective standardization.