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

Price, Gary

doi:10.1007/s00769-010-0655-z

Cited by 10 publications

(8 citation statements)

References 16 publications

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“…Finally, it is the duty and task of an international body like the Meter Convention to introduce and maintain terms and notions that are in agreement with proved and established science [21,23].…”

Section: Discussionmentioning

confidence: 99%

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The International System of Units—a case for reconsideration

Feller

2011

Accred Qual Assur

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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 that are contradictory and in conflict with today's standard mathematical concepts. The inconsistencies that have evolved in metrology due to the lack of appropriate notions are pointed out. This is most important, as the metrology is a field that is internationally well organized under the umbrella of the Meter Convention, an international treaty for acting on all matters relating to units of measurement. Committees and working groups under the Meter Convention have a leading role in the elaboration of important metrological guides, among others the International Vocabulary of Metrology. Therefore, it is highly desirable that their publications use well-founded concepts and terminology. It is consensus that it is desirable to find a system of units on invariant properties of nature and not on human artifacts, e.g., the prototype of the kilogram. However, the current proposals to improve that are in conflict with standard scientific concepts. It is shown in the paper how these inconsistencies can be avoided. The argumentation is based on the interpretation of numbers developed by mathematicians like Cantor, Dedekind, Peano, and others that have led the logic foundation of mathematics with set and number theory. This foundation excludes dogmas that have been forwarded in the last century under the umbrella of the Meter Convention.

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Section: Discussionmentioning

confidence: 99%

“…The constant would simply lose its meaning and become scientifically irrelevant. A more comprehensive discussion of the subject is given in [11,20,21].…”

Section: Base Quantities Base Units and Dimensionsmentioning

confidence: 99%

The International System of Units—a case for reconsideration

Feller

2011

Accred Qual Assur

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“…Added to all of the above, there are well-known problems with the current SI [14] that remain unaddressed such as incompatibility with computer data systems and informatics generally [29], confusions in numerical expressions between integers and real numbers, basic errors in its account of dimensions, of unity, of entities and the counting thereof [13]. The subject of the identity of measurands-a central topic for chemical measurement-is unmentioned.…”

Section: Some Disquiet Concerning the New Simentioning

confidence: 99%

“…It is wrong to suggest otherwise, as was emphasized to the chemical education community by [11], which gave a number of alleged reasons why ''amount of substance'' is preferable to ''number of entities'' for the reporting of chemical measurement results. Those reasons were the subject of a critical analysis in [13]. It should also be noted that analysts long ago ceased thinking in terms of mass.…”

Section: Introductionmentioning

confidence: 97%

No prospect for change

Price¹

2011

Accred Qual Assur

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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 definition of the mole) on the grounds that many objectors had proposed new terms in attempts to clarify thinking and that it is impractical to achieve consensus on such proposals. This discussion in response argues that those criticisms miss the point of the objectors' arguments and are perhaps more appropriately directed at both the current and the new SI itself. A primary example of a neologism in the SI is the term ''amount of substance.'' The many substantive problems with the new SI remain unaddressed by its proponents. Many important consequences of exactly fixing multiple inter-dependent fundamental physical constants as the basis of the world's measurements would appear not to have been considered by the global institutions responsible for the world's measurement units.

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“…In practical measurement, the uncertainty and traceability of measurement results tend to be emphasized, whereas the object of realizing the true value of the measurand is evaded. The traceability of results of a chemical measurement has been questioned [11]. Furthermore, the theoretical exploration of the accurate measurement of the amount of substance is neglected.…”

Section: Introductionmentioning

confidence: 99%

The True Value of a Sample Composition Is There

Hong¹,

Yi²

2015

AJAC

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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, realizing the true value of the measurand at both the macroscopic and microscopic levels remains an unsolved theoretical problem. We find that the true value of a sample composition exists in any subsample of a homogeneous molecular population of the sample. Here, we propose the Central Law of Measurement of the Amount of Substance: "The homogeneity of a sample molecular population represents the measurement accuracy of the sample composition in an analytical procedure". The Central Law is based on a homogeneous molecular population axiom in which the molecular composition of a sample is identical for any homogeneous subsample. Furthermore, we point out that, at the microscopic scale, Avogadro's law does not hold true.

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

Cited by 10 publications

References 16 publications

The International System of Units—a case for reconsideration

The International System of Units—a case for reconsideration

No prospect for change

The True Value of a Sample Composition Is There

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