Failures of the global measurement system. Part 1: the case of chemistry

@article{Price2010FailuresOT,
  title={Failures of the global measurement system. Part 1: the case of chemistry},
  author={Gary Price},
  journal={Accreditation and Quality Assurance},
  year={2010},
  volume={15},
  pages={421-427}
}
  • G. Price
  • Published 31 March 2010
  • Chemistry
  • Accreditation and Quality Assurance
This discussion puts a case of advocatus diaboli: that the Treaty of the Metre, its associated administrative apparatus and the International System of measurement units (SI) has basically failed for chemical measurement and is largely irrelevant to modern analysis, much of practical measurement in modern economies and much of recent technology. The practical use of the chemical unit termed the mole, the introduction to the SI units of the thermodynamic mole and the invention of a new physical… 

A skeptic’s review of the New SI

Proposals in draft form have been circulated for new Système International (SI) measurement units that are expected to be official instruments of the Treaty of the Metre by 2015. This review outlines

The International System of Units—a case for reconsideration

The International System of Units (SI) follows a concept that goes back to Maxwell. At that time, a logic sound foundation of mathematics was not yet available. This has lead to concepts and terms

No prospect for change

  • G. Price
  • Political Science
    Accreditation and Quality Assurance
  • 2011
A recent discussion by Martin Milton in the November issue of this journal was critical of many published objections to the proposed new International System (SI) measurement units (and in particular

The mole is not an ordinary measurement unit

In this paper, it is argued that the SI system has not carefully enough taken into account the differences that exist between stoichiometry and physics, and because of this neglect forced the

How much does the SI, namely the proposed “New SI”, conform to principles of the Metre Treaty?

  • F. Pavese
  • Political Science
    Accreditation and Quality Assurance
  • 2014
The International System of Units (SI) was first adopted in 1960, as the more recent implementation of the Metre Treaty signed in 1875. Basic features of the original SI are that (a) seven units are

The True Value of a Sample Composition Is There

The core objective of a chemical composition measurement is to determine its true value. However, when measuring the composition of a macroscopic sample with a large number of atoms or molecules,

The mole: definition versus practical use

Most base units in the SI relate to specific sensoric qualities our body is able to observe: space, heat, brightness, etc. The base unit ‘mole’ incorporates intellectual insight: the atomistic

Reproposition of numerosity as the SI base quantity whose unit is the mole

Abstract‘Amount of substance’ was introduced in the end of the 1950s as the physical quantity whose unit of measurement is the mole. Fundamental problems associated with this physical quantity have

The next 50 years of the SI: a review of the opportunities for the e-Science age

This paper argues that the SI definitions, symbols and syntax should be made more rigorous, so they can be represented wholly and unambiguously in ontologies, programs, data and text, and so the SI notation can be rendered faithfully in print and on screen.

Redefinícia mólu – pozadie

This article connects an ongoing discussion about the redefinition of basic units in the International System of Units with the teaching of chemistry. The “new” definition of mole is to be based on

References

SHOWING 1-10 OF 22 REFERENCES

Redefinition of the kilogram, ampere, kelvin and mole: a proposed approach to implementing CIPM recommendation 1 (CI-2005)

The International System of Units (SI) is founded on seven base units, the metre, kilogram, second, ampere, kelvin, mole and candela corresponding to the seven base quantities of length, mass, time,

Simple principles for metrology in chemistry: identifying and counting

We examine the problem of quantitative chemical measurement for well-identified substances, discuss the quantity called ‘amount of substance’, the means of expressing it, and its physical SI unit the

Laboratory effects models for interlaboratory comparisons

The statistical analysis of results from inter-laboratory comparisons (for example Key Comparisons, or Supplemental Comparisons) produces an estimate of the measurand (reference value) and statements

Functions and Shapes in the Light of the International System of Units

Famously, Galilei made the ontological claim that the book of nature is written in the language of mathematics. Probably, if only implicitly, most contemporary natural scientists share his view. This

Amount of Substance and the Mole

The unit mole is very familiar amongst both chemists and physicists, but the name of the corresponding quantity 'amount of substance' is not so familiar and the concept is still a source of

Numerosity versus mass

The particulate nature of matter was not evident for a long time in early history. Demokritos (460–370 BC) is mostly credited with the concept of particulate matter, probably based on philosophical

Units for quantities of dimension one

All quantities of dimension one are said to have the SI coherent derived unit one with the symbol '1'. (Single quotation marks are used here sometimes to indicate a quote, name, term or symbol;

The use and abuse of the terms percent, parts per million and parts in 10n

We discuss two different ways in which terms such as percent (%) and parts per million (ppm) are used, both in the scientific literature and in everyday language. We give examples of the way in which

The use and abuse of the terms percent, parts per million and parts in 10n

We discuss two different ways in which terms such as percent (%) and parts per million (ppm) are used, both in the scientific literature and in everyday language. We give examples of the way in which