Modify CIPM YAML files

Recommendations are also added to this repository. Decisions are available in separate repository.
metanorma · Aug 19, 2021 · 1bb399c · 1bb399c
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diff --git a/meetings-en/meeting-1956.yml b/meetings-en/meeting-1956.yml
@@ -23,9 +23,39 @@ resolutions:
     date_effective: 1956-01-01
     message: |-
       that, according to the decisions of the 8th General Assembly of the International Astronomical Union (Rome, 1952), the second of ephemeris time (ET) is the fraction +
-      (12 960 276 813 / 408 986 496) ´ stem:[10^(-9)] of the tropical year for 1900 January 0 at stem:[12 "h"] ET,
+      stem:[(12 960 276 813) / (408 986 496) xx 10^(-9)] of the tropical year for 1900 January 0 at stem:[12 "h"] ET,
   actions:
   - type: decides
     date_effective: 1956-01-01
     message: "The second is the fraction 1/31 556 925.9747 of the tropical
       year for 1900 January 0 at 12 hours ephemeris time."
+- dates:
+  - 1956-01-01
+  title: Système International d’Unités
+  identifier: 3
+  url: https://www.bipm.org/en/CIPM/db/1956/3/
+  approvals:
+  - type: affirmative
+    degree: unanimous
+    message: The Comité International des Poids et Mesures,
+  considerations:
+  - type: considering
+    date_effective: 1956-01-01
+    message: the task entrusted to it by Resolution 6 of the 9th Conférence Générale des Poids et Mesures (CGPM) concerning the establishment of a practical system of units of measurement suitable for adoption by all countries adhering to the Metre Convention,
+  - type: considering
+    date_effective: 1956-01-01
+    message: the documents received from twenty-one countries in reply to the enquiry requested by the 9th CGPM,
+  - type: considering
+    date_effective: 1956-01-01
+    message: Resolution 6 of the 10th CGPM, fixing the base units of the system to be established,
+  actions:
+  - type: recommends
+    date_effective: 1956-01-01
+    message: |-
+    that the name “Système International d’Unités” be given to the system founded on the base units adopted by the 10th CGPM, viz.: +
+    [This is followed by the list of the six base units with their symbols, reproduced in Resolution 12 of the 11th CGPM (1960)].
+  - type: recommends
+    date_effective: 1956-01-01
+    message: |-
+    that the units listed in the table below be used, without excluding others which might be added later: +
+    [This is followed by the table of units reproduced in paragraph 4 of Resolution 12 of the 11th CGPM (1960)].
diff --git a/meetings-en/meeting-1964.yml b/meetings-en/meeting-1964.yml
@@ -16,14 +16,14 @@ resolutions:
   considerations:
   - type: acknowledging
     date_effective: 1964-01-01
-    message: empowered by cgpm-resolution:en/12/5[Resolution 5] of the 12th Conférence
+    message: *empowered* by cgpm-resolution:en/12/5[Resolution 5] of the 12th Conférence
       Générale des Poids et Mesures to name atomic or molecular frequency standards
       for temporary use for time measurements in physics,
   actions:
   - type: decides
     date_effective: 1964-01-01
-    message: that the standard to be employed is the transition between the
+    message: '*declares* that the standard to be employed is the transition between the
       hyperfine levels stem:[F = 4], stem:[M = 0] and stem:[F = 3], stem:[M = 0] of the
       ground state ^2^S~1/2~ of the caesium 133 atom, unperturbed by external fields,
       and that the frequency of this transition is assigned the value 9 192 631 770
-      hertz.
+      hertz.'
diff --git a/meetings-en/meeting-1967.yml b/meetings-en/meeting-1967.yml
@@ -23,6 +23,6 @@ resolutions:
   actions:
   - type: decides
     date_effective: 1967-01-01
-    message: 'declares that the rules of Resolution 12 of the 11th CGPM apply to the
+    message: '*declares* that the rules of Resolution 12 of the 11th CGPM apply to the
       kilogram in the following manner: the names of decimal multiples and submultiples
-      of the unit of mass are formed by attaching prefixes to the word "gram".'
+      of the unit of mass are formed by attaching prefixes to the word "gram".'
diff --git a/meetings-en/meeting-1969.yml b/meetings-en/meeting-1969.yml
@@ -23,13 +23,13 @@ resolutions:
   actions:
   - type: decides
     date_effective: 1969-01-01
-    message: the base units, the supplementary units and the derived units of the Système International d'Unités, which form a coherent set, are denoted by the name "SI units";
+    message: '*declares* the base units, the supplementary units and the derived units of the Système International d'Unités, which form a coherent set, are denoted by the name "SI units";'
   - type: decides
     date_effective: 1969-01-01
-    message: the prefixes adopted by the CGPM for the formation of decimal multiples and submultiples of SI units are called "SI prefixes";
+    message: '*declares* the prefixes adopted by the CGPM for the formation of decimal multiples and submultiples of SI units are called "SI prefixes";'
   - type: recommends
     date_effective: 1969-01-01
     message: |-
       the use of SI units and of their decimal multiples and submultiples whose names are formed by means of SI prefixes.
 
-      Note: The name "supplementary units", appearing in cgpm-resolution:en/11/12[Resolution 12] of the 11th CGPM (and in the present Recommendation) is given to SI units for which the General Conference declines to state whether they are base units or derived units.
+      Note: The name "supplementary units", appearing in cgpm-resolution:en/11/12[Resolution 12] of the 11th CGPM (and in the present Recommendation) is given to SI units for which the General Conference declines to state whether they are base units or derived units.
diff --git a/meetings-en/meeting-1970.yml b/meetings-en/meeting-1970.yml
@@ -0,0 +1,18 @@
+---
+metadata:
+  title: CCDS, 1970 (_In_ CIPM, 1970)
+  date: 1970-01-01
+  source: BIPM - Pavillon de Breteuil
+resolutions:
+- dates:
+  - 1970-01-01
+  title: Definition of TAI
+  identifier: 2
+  url:
+  approvals:
+  - type: affirmative
+    degree: unanimous
+    message: |-
+    International Atomic Time (TAI) is the time reference coordinate established by the Bureau International de l'Heure on the basis of the readings of atomic clocks operating in various establishments in accordance with the definition of the second, the unit of time of the International System of Units. +
+    In 1980, the definition of TAI was completed as follows (declaration of the CCDS, _BIPM Com. Cons. Déf. Seconde_, 1980, *9*, S 15 and Metrologia, 1981, *17*, 70): +
+    TAI is a coordinate time scale defined in a geocentric reference frame with the SI second as realized on the rotating geoid as the scale unit.
diff --git a/meetings-en/meeting-1980.yml b/meetings-en/meeting-1980.yml
@@ -40,7 +40,7 @@ resolutions:
   - type: considering
     date_effective: 1980-01-01
     message: |-
-      considering also
+      *considering also*
 
        that the interpretation given by the CIPM in 1969 for the class of supplementary units introduced in cgpm-resolution:en/11/12[Resolution 12] of the 11th Conférence Générale des Poids et mesures (CGPM) in 1960 allows the freedom of treating the radian and the steradian as SI base units,
   - type: considering
@@ -51,4 +51,4 @@ resolutions:
     date_effective: 1980-01-01
     message: to interpret the class of supplementary units in the International
       System as a class of dimensionless derived units for which the CGPM allows the
-      freedom of using or not using tem in expressions for SI derived units.
+      freedom of using or not using tem in expressions for SI derived units.
diff --git a/meetings-en/meeting-1988.yml b/meetings-en/meeting-1988.yml
@@ -33,8 +33,8 @@ resolutions:
       4 parts in stem:[10^(7)], and a reproducibility which is significantly better,
   - type: considering
     date_effective: 1988-01-01
-    message: is of the opinion that no change in this recommended value of the Josephson
-      constant will be necessary in the foreseeable future, and
+    message: '*is of the opinion* that no change in this recommended value of the Josephson
+      constant will be necessary in the foreseeable future, and'
   actions:
   - type: recommends
     date_effective: 1988-01-01
@@ -120,4 +120,4 @@ resolutions:
       laboratory reference standard of resistance, laboratories follow the most recent
       edition of the technical guidelines for reliable measurements of the quantized
       Hall resistance drawn up by the Comité Consultatif d'Électricité and published
-      by the Bureau International des Poids et Mesures, and
+      by the Bureau International des Poids et Mesures, and
diff --git a/meetings-en/meeting-1989.yml b/meetings-en/meeting-1989.yml
@@ -18,18 +18,29 @@ resolutions:
     date_effective: 1989-01-01
     message: |-
       acting in accordance with cgpm-resolution:en/18/7[Resolution 7] of the 18th Conférence Générale des Poids et Mesures (1987) has adopted the International Temperature Scale of 1990 ( https://www.bipm.org/en/publications/its-90.html[ITS-90]) to supersede the International Practical Temperature Scale of 1968 (IPTS-68).
-
-      The CIPM *notes* that, by comparison with the IPTS-68, the ITS-90
-
-      * extends to lower temperatures, down to stem:[0.65 "K"], and hence also supersedes the EPT-76,
-      * is in substantially better agreement with corresponding thermodynamic temperatures,
-      * has much improved continuity, precision and reproducibility throughout its range and
-      * has subranges and alternative definitions in certain ranges which greatly facilitate its use.
-
-      The CIPM also *notes* that, to accompany the text of the ITS-90 there will be two further documents, the _Supplementary Information for the ITS-90_ and _Techniques for Approximating the ITS-90_. These documents will be published by the BIPM and periodically updated.
-
-      The CIPM *recommends*
-
-      * that on 1 January 1990 the ITS-90 come into force and
-      * that from this same date the IPTS-68 and the EPT-76 be abrogated.
-  actions: []
+  - type: noting
+    date_effective: 1989-01-01
+    message: |-
+      The CIPM *notes* that, by comparison with the IPTS-68, the ITS-90 +
+  - type: noting
+    date_effective: 1989-01-01
+    message: extends to lower temperatures, down to stem:[0.65 "K"], and hence also supersedes the EPT-76,
+  - type: noting
+    date_effective: 1989-01-01
+    message: is in substantially better agreement with corresponding thermodynamic temperatures,
+  - type: noting
+    date_effective: 1989-01-01
+    message: has much improved continuity, precision and reproducibility throughout its range and
+  - type: noting
+    date_effective: 1989-01-01
+    message: has subranges and alternative definitions in certain ranges which greatly facilitate its use.
+  - type: noting
+    date_effective: 1989-01-01
+    message: The CIPM also *notes* that, to accompany the text of the ITS-90 there will be two further documents, the _Supplementary Information for the ITS-90_ and _Techniques for Approximating the ITS-90_. These documents will be published by the BIPM and periodically updated.
+  actions:
+  - type: recommends
+    date_effective: 1989-01-01
+    message: that on 1 January 1990 the ITS-90 come into force and
+  - type: recommends
+    date_effective: 1989-01-01
+    message: that from this same date the IPTS-68 and the EPT-76 be abrogated.
diff --git a/meetings-en/meeting-2001.yml b/meetings-en/meeting-2001.yml
@@ -0,0 +1,18 @@
+---
+metadata:
+  title: CIPM, 2001
+  date: 2001-01-01
+  source: BIPM - Pavillon de Breteuil
+resolutions:
+- dates:
+  - 2001-01-01
+  title: "SI units" and "units of the SI"
+  identifier: 1
+  url:
+  approvals:
+  - type: affirmative
+    degree: unanimous
+    message: |-
+    The CIPM approved in 2001 the following proposal of the CCU regarding "SI units" and "units of the SI": +
+    "We suggest that "SI units" and "units of the SI" should be regarded as names that include both the base units and the coherent derived units, and also all units obtained by combining these with the recommended multiple and sub-multiple prefixes. +
+    We suggest that the name "coherent SI units" should be used when it is desired to restrict the meaning to only the base units and the coherent derived units."
diff --git a/meetings-en/meeting-2002.yml b/meetings-en/meeting-2002.yml
@@ -13,9 +13,70 @@ resolutions:
   approvals:
   - type: affirmative
     degree: unanimous
-    message: Unanimous
-  considerations: []
-  actions: []
+    message: The International Committee for Weights and Measures,
+  considerations:
+  - type: recalling
+    date_effective: 2002-01-01
+    message: that in 1983 the 17th General Conference (CGPM) adopted a new definition of the metre;
+  - type: recalling
+    date_effective: 2002-01-01
+    message: |-
+    that in the same year the CGPM invited the International Committee (CIPM)
+
+    * to draw up instructions for the practical realization of the metre,
+    * to choose radiations which can be recommended as standards of wavelength for the interferometric measurement of length and draw up instructions for their use,
+    * to pursue studies undertaken to improve these standards and in due course to extend or revise these instructions;
+  - type: recalling
+    date_effective: 2002-01-01
+    message: |-
+    that in response to this invitation the CIPM adopted Recommendation 1 (CI-1983) (_mise en pratique_ of the definition of the metre) to the effect
+
+    * that the metre should be realized by one of the following methods:
+    ** by means of the length stem:[l] of the path travelled in vacuum by a plane electromagnetic wave in a time stem:[t]; this length is obtained from the measured time stem:[t], using the relation stem:[l = c_0 * t] and the value of the speed of light in vacuum stem:[c_0 = 299 792 458 "m/s"],
+    ** by means of the wavelength in vacuum stem:[lambda] of a plane electromagnetic wave of frequency stem:[f]; this wavelength is obtained from the measured frequency stem:[f] using the relation stem:[lambda = c_0 // f] and the value of the speed of light in vacuum stem:[c_0 = 299 792 458 "m/s"],
+    ** by means of one of the radiations from the list below, whose stated wavelength in vacuum or whose stated frequency can be used with the uncertainty shown, provided that the given specifications and accepted good practice are followed;
+    * that in all cases any necessary corrections be applied to take account of actual conditions such as diffraction, gravitation or imperfection in the vacuum;
+    * that in the context of general relativity, the metre is considered a unit of proper length. Its definition, therefore, applies only within a spatial extent sufficiently small that the effects of the non-uniformity of the gravitational field can be ignored (note that, at the surface of the Earth, this effect in the vertical direction is about 1 part in 1016 per metre). In this case, the effects to be taken into account are those of special relativity only. The local methods for the realization of the metre recommended in (b) and (c) provide the proper metre but not necessarily that given in (a). Method (a) should therefore be restricted to lengths l which are sufficiently short for the effects predicted by general relativity to be negligible with respect to the uncertainties of realization. For advice on the interpretation of measurements in which this is not the case, see the report of the Consultative Committee for Time and Frequency (CCTF) Working Group on the Application of General Relativity to Metrology (Application of general relativity to metrology, _Metrologia_, 1997, *34*, 261-290);
+  - type: recalling
+    date_effective: 2002-01-01
+    message: that the CIPM had already recommended a list of radiations for this purpose;
+  - type: recalling
+    date_effective: 2002-01-01
+    message: also that in 1992 and in 1997 the CIPM revised the practical realization of the definition of the metre;
+  - type: considering
+    date_effective: 2002-01-01
+    message: that science and technology continue to demand improved accuracy in the realization of the metre;
+  - type: considering
+    date_effective: 2002-01-01
+    message: that since 1997 work in national laboratories, in the BIPM and elsewhere has identified new radiations and methods for their realization which lead to lower uncertainties;
+  - type: considering
+    date_effective: 2002-01-01
+    message: that there is an increasing move towards optical frequencies for time-related activities, and that there continues to be a general widening of the scope of application of the recommended radiations of the mise en pratique to cover not only dimensional metrology and the realization of the metre, but also high-resolution spectroscopy, atomic and molecular physics, fundamental constants and telecommunication;
+  - type: considering
+    date_effective: 2002-01-01
+    message: that a number of new frequency values with reduced uncertainties for radiations of high-stability cold atom and ion standards already listed in the recommended radiations list are now available, that the frequencies of radiations of several new cold atom and ion species have also recently been measured, and that new improved values with substantially reduced uncertainties for a number of optical frequency standards based on gas cells have been determined, including the wavelength region of interest to optical telecommunications;
+  - type: considering
+    date_effective: 2002-01-01
+    message: that new femtosecond comb techniques have clear significance for relating the frequency of high-stability optical frequency standards to that of the frequency standard realizing the SI second, that these techniques represent a convenient measurement technique for providing traceability to the International System of Units (SI) and that comb technology also can provide frequency sources as well as a measurement technique;
+  actions:
+  - type: recognizes
+    date_effective: 2002-01-01
+    message: comb techniques as timely and appropriate, and recommends further research to fully investigate the capability of the techniques;
+  - type: welcomes
+    date_effective: 2002-01-01
+    message: validations now being made of comb techniques by comparison with other frequency chain techniques;
+  - type: urges
+    date_effective: 2002-01-01
+    message: national metrology institutes and other laboratories to pursue the comb technique to the highest level of accuracy achievable and also to seek simplicity so as to encourage widespread application;
+  - type: recommends
+    date_effective: 2002-01-01
+    message: |-
+    that the list of recommended radiations given by the CIPM in 1997 (Recommendation 1 (CI-1997)) be replaced by the list of radiations given below*, including
+
+    * updated frequency values for cold Ca atom, H atom and the trapped Sr^+^ ion,
+    * frequency values for new cold ion species including trapped Hg^\+^ ion, trapped In+ ion and trapped Yb^+^ ion,
+    * updated frequency values for Rb-stabilized lasers, I~2~-stabilized Nd:YAG and He-Ne lasers, CH~4~-stabilized He-Ne lasers and OsO~4~-stabilized CO~2~ lasers at stem:[10 " "mu"m"],
+    * frequency values for standards relevant to the optical communications bands, including Rb- and C~2~H~2~-stabilized lasers.
 - dates:
   - 2002-01-01
   title: Dose equivalent
@@ -24,12 +85,12 @@ resolutions:
   approvals:
   - type: affirmative
     degree: unanimous
-    message: The International Committee for Weights and Mesures
+    message: The International Committee for Weights and Measures,
   considerations:
   - type: considering
     date_effective: 2002-01-01
     message: |-
-      *considering* that
+      that
 
       * the current definition of the SI unit of dose equivalent (sievert) includes a factor "stem:[N]" (product of any other multiplying factors) stipulated by the International Commission on Radiological Protection (ICRP), and
   - type: considering
@@ -52,4 +113,4 @@ resolutions:
 
       The Committee further *decides* to maintain the final sentence in the explanation as follows:
 
-      In order to avoid any risk of confusion between the absorbed dose stem:[D] and the dose equivalent stem:[H], the special names for the respective units should be used, that is, the name gray should be used instead of joules per kilogram for the unit of absorbed dose stem:[D] and the name sievert instead of joules per kilogram for the unit of dose equivalent stem:[H].
+      In order to avoid any risk of confusion between the absorbed dose stem:[D] and the dose equivalent stem:[H], the special names for the respective units should be used, that is, the name gray should be used instead of joules per kilogram for the unit of absorbed dose stem:[D] and the name sievert instead of joules per kilogram for the unit of dose equivalent stem:[H].