// Source-модель: закреплённые байты брошюры SI (BIPM) — 9-е издание на
// английском и французском и английская часть 8-го издания — и фрагменты
// английских текстов обеих редакций.
//
// ФАЙЛ ПОРОЖДАЕТСЯ. Правится только генератором —
// `corpus/tools/sources/sync/sync_bipm_si_brochure_fragments.py`; сверка без
// записи — его же ключом `--check`. Тексты вырезаются из
// `sources/si-brochure/{en9,en8}.txt`, поэтому разойтись с публикацией они
// не могут.
//
// ПРОВЕНАНС. Байты получены воспроизводимым извлечением из PDF со страницы
// публикаций BIPM штатным `pdftotext -layout` при poppler 25.06.0; входные
// PDF пинуются хэшем: 9-е изд. EN sha256:5442eea2c680caf77a9d96879205a97f57c7c270b98a0bd0126c18fefe47e02c,
// 9-е изд. FR sha256:e8395750d374c5aca5ea170c51243fa69b1ddd01cac54bdbdba51f9a61d49cba,
// 8-е изд. (двуязычный) sha256:68eb39b47ee611f7b1810a0b45fae39680dcf12a2233ec7365b8bafdbceacd68.
// Лицензия — Creative Commons Attribution 4.0 (страница BIPM и с. 2 PDF).
// `materialization_status` — PINNED_UNOFFICIAL_COPY: закреплено извлечение из
// PDF, а не байты самого PDF. `retrieved_at` — константа (DECISION-0005 п. 6).
//
// ДВЕ РЕДАКЦИИ ОДНОГО ДОКУМЕНТА, И ОНИ РАСХОДЯТСЯ ПО СУЩЕСТВУ: 8-е издание
// определяет килограмм через международный прототип, ампер через силу между
// проводниками, кельвин через тройную точку воды, моль через 0,012 кг
// углерода-12; 9-е издание — все семь единиц через семь определяющих
// констант, в силе с 20 мая 2019 (резолюция 1 26-й ГКМВ, 2018; приложение 1).
// Секунда, метр и кандела определены через те же константы в обеих
// редакциях, разница только в формулировке.
//
// ФРАНЦУЗСКИЙ ТЕКСТ — ПОДЛИННИК (так говорит сама брошюра). Он закреплён
// редакцией `SI_BROCHURE_9_FR` без фрагментов: формализация ведётся по
// английскому тексту, разметка французского — названный долг. Английская
// редакция объявлена `officiality official`: BIPM публикует её сам.

language "law.core" version "0.2";
package bipm.si_brochure version "0.1.0";
namespace "urn:bipm:clir:si-brochure";

source SI_BROCHURE {
    // `standard` — справочный документ межправительственной организации
    // (Метрическая конвенция), собирающий резолюции ГКМВ; юрисдикция
    // `International`, как у резолюций МАС и кодекса ICZN.
    kind standard;
    jurisdiction International;
    number "BIPM, The International System of Units (SI), 8th edition (2006) and 9th edition (2019, v4.01)";
    label en official "The International System of Units (SI)";
    label fr official "Le Système international d’unités (SI)";
    label ru unofficial "Международная система единиц (SI), брошюра BIPM";
}

edition SI_BROCHURE_8_EN of SI_BROCHURE {
    label en official "The International System of Units (SI), 8th edition, 2006 — English text of the bilingual edition";
    label ru unofficial "8-е издание (2006), английская часть двуязычного издания";
    language en;
    officiality official;
    adopted @2006-01-01;
    in_force [@2006-01-01, @2019-05-20);
    materialization_status PINNED_UNOFFICIAL_COPY;
}

publication SI_BROCHURE_8_EN_TEXT of SI_BROCHURE_8_EN {
    media_type "text/plain; charset=utf-8";
    uri "https://www.bipm.org/documents/20126/41483022/si_brochure_8.pdf";
    retrieved_at @2026-09-06T00:00:00Z;
    content_hash "sha256:75189f3babd57d9246af75c773507d027a0df049e5fb9eceb71fb9bb958f60e1";
    local_path "sources/si-brochure/en8.txt";
}

edition SI_BROCHURE_9_EN of SI_BROCHURE {
    label en official "The International System of Units (SI), 9th edition, 2019, version 4.01";
    label ru unofficial "9-е издание (2019), версия 4.01, английский текст";
    language en;
    officiality official;
    adopted @2018-11-16;
    in_force [@2019-05-20, infinity);
    materialization_status PINNED_UNOFFICIAL_COPY;
}

publication SI_BROCHURE_9_EN_TEXT of SI_BROCHURE_9_EN {
    media_type "text/plain; charset=utf-8";
    uri "https://www.bipm.org/documents/20126/41483022/SI-Brochure-9-EN.pdf";
    retrieved_at @2026-09-06T00:00:00Z;
    content_hash "sha256:e4de27dc33f988f97fc94da61a28830deb61d82944ff9023c1b8e8e119f2b980";
    local_path "sources/si-brochure/en9.txt";
}

edition SI_BROCHURE_9_FR of SI_BROCHURE {
    label fr official "Le Système international d’unités (SI), 9e édition, 2019, version 4.01";
    label ru unofficial "9-е издание (2019), версия 4.01, французский подлинник; фрагменты не размечены";
    language fr;
    officiality official;
    adopted @2018-11-16;
    in_force [@2019-05-20, infinity);
    materialization_status PINNED_UNOFFICIAL_COPY;
}

publication SI_BROCHURE_9_FR_TEXT of SI_BROCHURE_9_FR {
    media_type "text/plain; charset=utf-8";
    uri "https://www.bipm.org/documents/20126/41483022/SI-Brochure-9-FR.pdf";
    retrieved_at @2026-09-06T00:00:00Z;
    content_hash "sha256:bceec64d96fc9c791aea38592c93bfa852600adecddfcac295c155d3646456b9";
    local_path "sources/si-brochure/fr9.txt";
}

// --- 9-е издание, английский текст ---------------------------------------

// §2.2: SI — система единиц, в которой семь констант имеют фиксированные значения
fragment SI9_S2_2_DEFINITION_OF_SI in SI_BROCHURE_9_EN {
    kind provision;
    locator "section/2.2/definition";
    text en official """The International System of Units, the SI, is the system of units in which
• the unperturbed ground state hyperfine transition frequency of the caesium
133 atom, ∆νCs, is 9 192 631 770 Hz,
• the speed of light in vacuum, c, is 299 792 458 m/s,
• the Planck constant, h, is 6.626 070 15 × 10−34 J s,
• the elementary charge, e, is 1.602 176 634 × 10−19 C,
• the Boltzmann constant, k, is 1.380 649 × 10−23 J/K,
• the Avogadro constant, NA, is 6.022 140 76 × 1023 mol−1,
• the luminous efficacy of monochromatic radiation of frequency
540 × 1012 Hz, Kcd, is 683 lm/W,""";
    content_hash "sha256:186bea9a7e8e45241bf08305fc7f7d05fee96c1d1df4b8b841043bb2a9deeb52";
}

// §2.2: связь Hz, J, C, lm, W с базовыми единицами; значения констант без неопределённости
pub fragment SI9_S2_2_UNIT_RELATIONS in SI_BROCHURE_9_EN {
    kind provision;
    locator "section/2.2/relations";
    text en official """where the hertz, joule, coulomb, lumen, and watt, with unit symbols Hz, J, C, lm, and W,
respectively, are related to the units second, metre, kilogram, ampere, kelvin, mole, and
candela, with unit symbols s, m, kg, A, K, mol, and cd, respectively, according to Hz = s–1,
J = kg m2 s– 2, C = A s, lm = cd sr, and W = kg m2 s–3.
The numerical values of the seven defining constants have no uncertainty.""";
    content_hash "sha256:a2129c13bcd907dfdd657785e5d386188697524d86979439e0d86f0898e496a4";
}

// Таблица 1: семь определяющих констант и единицы, которые они определяют
pub fragment SI9_TABLE_1 in SI_BROCHURE_9_EN {
    kind table;
    locator "section/2.2/table-1";
    text en official """Table 1. The seven defining constants of the SI and the seven corresponding units
they define
___________________________________________________________________________
Defining constant Symbol Numerical value Unit
___________________________________________________________________________
hyperfine transition
frequency of Cs ∆νCs 9 192 631 770 Hz
speed of light in vacuum c 299 792 458 m s−1
Planck constant h 6.626 070 15 × 10−34 Js
elementary charge e 1.602 176 634 × 10−19 C
Boltzmann constant k 1.380 649 × 10 −23
J K−1
Avogadro constant NA 6.022 140 76 × 1023 mol−1
luminous efficacy Kcd 683 lm W−1""";
    content_hash "sha256:7af45fae4cb7a313e6c6425db7389d026287af5edadb25837e7fd871ec1e9fbb";
}

// Таблица 2: базовые величины и базовые единицы
fragment SI9_TABLE_2 in SI_BROCHURE_9_EN {
    kind table;
    locator "section/2.3.1/table-2";
    text en official """Table 2. SI base units
_____________________________________________________________________________
Base quantity Base unit
_____________________________________________________________________________
Name Typical symbol Name Symbol
_____________________________________________________________________________
time t second s
length l, x, r, etc. metre m
mass m kilogram kg
electric current I, i ampere A
thermodynamic temperature T kelvin K
amount of substance n mole mol
luminous intensity Iv candela cd""";
    content_hash "sha256:bdd9a6b3aadcc3e36539d3972cbe501a92940a3328bf1920d89660a3acc9e77b";
}

// §2.3.1: определение секунды через ∆νCs
fragment SI9_DEF_SECOND in SI_BROCHURE_9_EN {
    kind provision;
    locator "section/2.3.1/second";
    text en official """The second, symbol s, is the SI unit of time. It is defined by taking the fixed numerical
value of the caesium frequency, ∆νCs, the unperturbed ground-state hyperfine
transition frequency of the caesium 133 atom, to be 9 192 631 770 when expressed in the
unit Hz, which is equal to s−1.""";
    content_hash "sha256:a2b330de77b8fb6a298ffbbc5e22952db51f936a67c6a911f6df4afc0a5df01b";
}

// §2.3.1: определение метра через c
fragment SI9_DEF_METRE in SI_BROCHURE_9_EN {
    kind provision;
    locator "section/2.3.1/metre";
    text en official """The metre, symbol m, is the SI unit of length. It is defined by taking the fixed numerical
value of the speed of light in vacuum, c, to be 299 792 458 when expressed in the unit m
s−1, where the second is defined in terms of the caesium frequency ∆νCs.""";
    content_hash "sha256:9776d44ec57958c405378e1585c171bf44eebe01426be027f959a77064d4c8e0";
}

// §2.3.1: определение килограмма через h
fragment SI9_DEF_KILOGRAM in SI_BROCHURE_9_EN {
    kind provision;
    locator "section/2.3.1/kilogram";
    text en official """The kilogram, symbol kg, is the SI unit of mass. It is defined by taking the fixed
numerical value of the Planck constant, h, to be 6.626 070 15 × 10−34 when expressed in
the unit J s, which is equal to kg m2 s−1, where the metre and the second are defined in
terms of c and ∆νCs.""";
    content_hash "sha256:96dae548d302b9211c1c70f6e206bf377de3b0c9fbb7327d36e875da4063d572";
}

// §2.3.1: определение ампера через e
fragment SI9_DEF_AMPERE in SI_BROCHURE_9_EN {
    kind provision;
    locator "section/2.3.1/ampere";
    text en official """The ampere, symbol A, is the SI unit of electric current. It is defined by taking the fixed
numerical value of the elementary charge, e, to be 1.602 176 634 × 10−19 when expressed
in the unit C, which is equal to A s, where the second is defined in terms of ∆νCs.""";
    content_hash "sha256:ee5d176bd7c10a5fd04b88fca6c4230500668da6aac99d1d3c36a4cefebe9e2e";
}

// §2.3.1: определение кельвина через k
fragment SI9_DEF_KELVIN in SI_BROCHURE_9_EN {
    kind provision;
    locator "section/2.3.1/kelvin";
    text en official """The kelvin, symbol K, is the SI unit of thermodynamic temperature. It is defined by
taking the fixed numerical value of the Boltzmann constant, k, to be 1.380 649 × 10−23
when expressed in the unit J K−1, which is equal to kg m2 s−2 K−1, where the kilogram,
metre and second are defined in terms of h, c and ∆νCs.""";
    content_hash "sha256:e7d9ee6b2f490124223d1accc13282a3b5738bb04df8ca36916189010fd2388d";
}

// §2.3.1: определение моля через NA
fragment SI9_DEF_MOLE in SI_BROCHURE_9_EN {
    kind provision;
    locator "section/2.3.1/mole";
    text en official """The mole, symbol mol, is the SI unit of amount of substance. One mole contains exactly
6.022 140 76 × 1023 elementary entities. This number is the fixed numerical value of the
Avogadro constant, NA, when expressed in the unit mol−1 and is called the Avogadro
number.""";
    content_hash "sha256:a11e8e01b96d54037f81044afa61838d441ef84f48bcdf4855c3a7ebf94bac16";
}

// §2.3.1: определение канделы через Kcd
fragment SI9_DEF_CANDELA in SI_BROCHURE_9_EN {
    kind provision;
    locator "section/2.3.1/candela";
    text en official """The candela, symbol cd, is the SI unit of luminous intensity in a given direction. It is
defined by taking the fixed numerical value of the luminous efficacy of monochromatic
radiation of frequency 540 × 1012 Hz, Kcd, to be 683 when expressed in the unit lm W−1,
which is equal to cd sr W−1, or cd sr kg−1 m−2 s3, where the kilogram, metre and second
are defined in terms of h, c and ∆νCs.""";
    content_hash "sha256:e0ef37a23e1dd6bb5def7debca8079b9612fe024405e5bef9b40d84e7ecb37ec";
}

// §2.3.1: градус Цельсия равен кельвину по величине; t/°C = T/K − 273.15
fragment SI9_S2_3_1_CELSIUS in SI_BROCHURE_9_EN {
    kind provision;
    locator "section/2.3.1/celsius";
    text en official """The unit of Celsius temperature is the degree Celsius, symbol °C, which is by definition equal
in magnitude to the unit kelvin. A difference or interval of temperature may be expressed in
kelvins or in degrees Celsius, the numerical value of the temperature difference being the
same in either case. However, the numerical value of a Celsius temperature expressed in
degrees Celsius is related to the numerical value of the thermodynamic temperature expressed
in kelvins by the relation
t/°C = T/K − 273.15""";
    content_hash "sha256:81773254636a642ed6da3aec77e32cafb409eae407b17017686a27135b328f9a";
}

// §2.3.4: производные и когерентные производные единицы
fragment SI9_S2_3_4_COHERENT in SI_BROCHURE_9_EN {
    kind provision;
    locator "section/2.3.4/coherent";
    text en official """Derived units are defined as products of powers of the base units. When the numerical factor
of this product is one, the derived units are called coherent derived units. The base and
coherent derived units of the SI form a coherent set, designated the set of coherent SI units.
The word “coherent” here means that equations between the numerical values of quantities
take exactly the same form as the equations between the quantities themselves.""";
    content_hash "sha256:b9e6a117312c189b30c283ce54aee8fdfdea00c8fe550f1c0236e766dc9186cb";
}

// §2.3.4: 22 единицы со специальными названиями; вместе с базовыми — 29
fragment SI9_S2_3_4_SPECIAL_NAMES in SI_BROCHURE_9_EN {
    kind provision;
    locator "section/2.3.4/special-names";
    text en official """Some of the coherent derived units in the SI are given special names. Table 4 lists 22 SI units
with special names. Together with the seven base units (Table 2) they form the core of the
set of SI units. All other SI units are combinations of some of these 29 units.""";
    content_hash "sha256:515a61fe3b5e76008a87be79f0c0d988a935aee92c2d22abefed37564313eba0";
}

// §2.3.4: префиксы применимы к 29 единицам со специальными названиями, кроме килограмма
fragment SI9_S2_3_4_PREFIX_EXCEPTION in SI_BROCHURE_9_EN {
    kind provision;
    locator "section/2.3.4/prefix-exception";
    text en official """The CGPM has adopted a series of prefixes for use in forming the decimal multiples and sub-
multiples of the coherent SI units (see chapter 3). They are convenient for expressing the
values of quantities that are much larger than or much smaller than the coherent unit.
However, when prefixes are used with SI units, the resulting units are no longer coherent,
because the prefix introduces a numerical factor other than one. Prefixes may be used with
any of the 29 SI units with special names with the exception of the base unit kilogram, which
is further explained in chapter 3.""";
    content_hash "sha256:c093af4db37dce32abaf0950fef702d7f2a024f35700fa39bfc5a3875e4db083";
}

// Таблица 4: 22 единицы со специальными названиями, выражение через базовые
fragment SI9_TABLE_4 in SI_BROCHURE_9_EN {
    kind table;
    locator "section/2.3.4/table-4";
    text en official """Table 4. The 22 SI units with special names and symbols
_____________________________________________________________________________________________
Special name Unit expressed in Unit expressed in
Derived quantity of unit Symbol terms of base units (a) terms of other SI units
______________________________________________________________________________________________
plane angle radian (b) rad (b) 1
solid angle steradian (c) sr (c) 1
frequency hertz (d) Hz s−1
force newton N kg m s−2
pressure, stress pascal Pa kg m−1 s−2 N/m2
energy, work, joule J kg m2 s−2 Nm
amount of heat
power, radiant flux watt W kg m2 s−3 J/s
electric charge coulomb C As
electric potential difference (e) volt V kg m2 s−3 A−1 W/A
capacitance farad F kg−1 m−2 s4 A2 C/V
electric resistance ohm Ω kg m2 s−3 A−2 V/A
electric conductance siemens S kg −1 m−2 s3 A2 A/V
magnetic flux weber Wb kg m2 s−2 A−1 Vs
magnetic flux density tesla T kg s−2 A−1 Wb/m2
inductance henry H kg m 2 s−2 A−2 Wb/A
134 • The International System of Units
Celsius temperature degree Celsius (f) °C K
luminous flux lumen lm cd sr (g) cd sr
illuminance lux lx cd sr m−2 lm/m2
activity referred to becquerel Bq s−1
a radionuclide (d, h)
absorbed dose, kerma gray Gy m2 s−2 J/kg
dose equivalent sievert (i) Sv m2 s−2 J/kg
catalytic activity katal kat mol s −1""";
    content_hash "sha256:fd0d2e3ba1b4f130bcf6fbeb2bc54f86b671e4e4cab5a195f3a165f8c72d8070";
}

// §2.3.4: полный набор единиц SI — когерентные плюс кратные и дольные
fragment SI9_S2_3_4_COMPLETE_SET in SI_BROCHURE_9_EN {
    kind provision;
    locator "section/2.3.4/complete-set";
    text en official """The seven base units and 22 units with special names and symbols may be used in
combination to express the units of other derived quantities. Since the number of quantities
is without limit, it is not possible to provide a complete list of derived quantities and derived
units. Table 5 lists some examples of derived quantities and the corresponding coherent
derived units expressed in terms of base units. In addition, Table 6 lists examples of coherent
derived units whose names and symbols also include derived units. The complete set of SI
units includes both the coherent set and the multiples and sub-multiples formed by using the
SI prefixes.""";
    content_hash "sha256:ba07f1b3c6f8c3772a950b6e0b74315712b3c468206b9b83cc70ec6b0ee93720";
}

// §3: кратные и дольные от 10^30 до 10^−30
fragment SI9_S3_INTRO in SI_BROCHURE_9_EN {
    kind provision;
    locator "section/3/intro";
    text en official """Decimal multiples and submultiples ranging from 1030 to 10−30 are provided for use with the
SI units. The names and symbols of these multiple and sub-multiple prefixes are presented
in Table 7.""";
    content_hash "sha256:287904741f4b52ca7afad9cf582c6821a418beb6ad4c42871ec10793d20aecd9";
}

// Таблица 7: префиксы SI
fragment SI9_TABLE_7 in SI_BROCHURE_9_EN {
    kind table;
    locator "section/3/table-7";
    text en official """Table 7. SI prefixes
_____________________________________________________________________________
Factor Name Symbol Factor Name Symbol
101 deca da 10−1 deci d
10 2
hecto h 10−2 centi c
10 3
kilo k 10 −3
milli m
106 mega M 10−6 micro µ
109 giga G 10−9 nano n
10 12
tera T 10 −12
pico p
1015 peta P 10−15 femto f
1018 exa E 10−18 atto a
1021 zetta Z 10−21 zepto z
10 24
yotta Y 10 −24
yocto y
10 27
ronna R 10 −27
ronto r
1030 quetta Q 10−30 quecto q""";
    content_hash "sha256:12e43dffddcc8f179c629bcd2a1de930f970f632899c8a4da3f5ff3643c05559";
}

// §3: префикс с единицей — новый неразделимый символ
fragment SI9_S3_INSEPARABLE in SI_BROCHURE_9_EN {
    kind provision;
    locator "section/3/inseparable";
    text en official """The grouping formed by a prefix symbol attached to a unit symbol constitutes a new
inseparable unit symbol (forming a multiple or sub-multiple of the unit concerned) that can
be raised to a positive or negative power and that can be combined with other unit symbols
to form compound unit symbols.""";
    content_hash "sha256:f100b1f76283e004d1b8c8b32f818afc84c62ffb98e7a0416a2057b8fbaec48b";
}

// §3: составные префиксы не допускаются
fragment SI9_S3_COMPOUND in SI_BROCHURE_9_EN {
    kind provision;
    locator "section/3/compound";
    text en official """Compound prefix symbols, i.e. prefix symbols formed by the juxtaposition of two or more
prefix symbols, are not permitted. This rule also applies to two or more compound prefix
names.""";
    content_hash "sha256:7271a37ae1b8b3f1bdc28994ba3fc71acb0ddbeb089df35c4c5052706b44e846";
}

// §3: килограмм — единственная когерентная единица с префиксом; кратные образуются от грамма
fragment SI9_S3_KILOGRAM in SI_BROCHURE_9_EN {
    kind provision;
    locator "section/3/kilogram";
    text en official """For historical reasons, the kilogram is the only coherent SI unit that includes a prefix in its
name and symbol. Names and symbols for decimal multiples and sub-multiples of the unit of
mass are formed by attaching prefix names and symbols to the unit name “gram” and the unit
symbol “g” respectively. For example, 10−6 kg is written as milligram, mg, not as
microkilogram, µkg.""";
    content_hash "sha256:c745c0e5afd6eb4cc7d18f307b66172592a9256bc528d5e54d8997168a615dca";
}

// §4: внесистемные единицы, допускаемые к применению
fragment SI9_S4_INTRO in SI_BROCHURE_9_EN {
    kind provision;
    locator "section/4/intro";
    text en official """It is recognized that some non-SI units are widely used and that this is expected to continue
for many years. It is therefore important to recall the values of these non-SI units in terms of
SI units, because the SI is the internationally agreed reference with respect to which all other
units are defined. A non-exhaustive list of non-SI units is given in Table 8, grouped into
indicative unit categories to aid explanation.""";
    content_hash "sha256:29b0a429548094c549dbe93554a0d57bb24f970ccc798244745252608e18d734";
}

// Таблица 8: внесистемные единицы и их значения в SI
fragment SI9_TABLE_8 in SI_BROCHURE_9_EN {
    kind table;
    locator "section/4/table-8";
    text en official """Table 8. Non-SI units
Symbol
Unit category Quantity Name of unit Value in SI units
for unit
Long-standing time minute min 1 min = 60 s
units of time and hour h 1 h = 60 min = 3600 s
angle day d 1 d = 24 h = 86 400 s
plane and degree ° 1° = (π/180) rad
phase angle minute ′ 1′ = (1/60)° = (π/10 800) rad
second (a) ″ 1″ = (1/60)′ = (π/648 000) rad
Historical names area are (b) a 1 a = 1 dam2 = 102 m2
for decimal hectare (b) ha 1 ha = 1 hm2 = 104 m2
multiples and barn (c) b 1 b = 100 fm2 = 10−28 m2
submultiples
of SI units volume litre (d) l, L 1 l = 1 L = 1 dm3 = 10−3 m3
mass tonne (e) t 1 t = 1 Mg = 103 kg
length angstrom (f) Å 1 Å = 0.1 nm = 10−10 m
acceleration gal (g) Gal 1 Gal = 1 cm/s2 = 10−2 m/s2
pressure bar (h) bar 1 bar = 0.1 MPa = 105 Pa
Internationally mass dalton (i) Da 1 Da =
recognised units 1.660 539 068 92(52) × 10−27 kg
that are not
decimal multiples length astronomical unit (j) au 1 au = 149 597 870 700 m
or submultiples nautical mile (k) 1 nautical mile = 1852 m
of SI units speed knot (k) 1 nautical mile per hour =
(1852/3600) m/s
energy electronvolt (l) eV 1 eV = 1.602 176 634 × 10−19 J
Units used in logarithmic neper (m) Np (m)
specialized ratio quantities bel (m) B (m)
technical decibel (m) dB (m)
disciplines
reactive power var (n) var 1 var = 1 V A = 1 W""";
    content_hash "sha256:57b8a23b0a6cc65a2174b77ede19272cc5689173c83bf8a600ed04f5a8699743";
}

// Приложение 1, указатель: 26-я ГКМВ (2018), пересмотр SI, вступает в силу 20 мая 2019
fragment SI9_APP1_2018_INDEX in SI_BROCHURE_9_EN {
    kind note;
    locator "appendix/1/index/26th-cgpm-2018";
    text en official """26th CGPM, 2018: revision of the International System of Units, the SI 194
(to enter into force on 20 May 2019)""";
    content_hash "sha256:db245688b99edbdfcbd6564bfe291cefaa4af217ce12e0885bce05255ce5af8b";
}

// Приложение 1, указатель: 27-я ГКМВ (2022) добавляет ronna, ronto, quetta, quecto
fragment SI9_APP1_2022_INDEX in SI_BROCHURE_9_EN {
    kind note;
    locator "appendix/1/index/27th-cgpm-2022";
    text en official """27th CGPM, 2022: decides to add ronna, ronto, quetta, and quecto to the 196""";
    content_hash "sha256:c9c4db4b2e2e564c569165ac05736da2065ab50827c2613fe78a88fbdb6a19da";
}

// Приложение 1: резолюция 3 27-й ГКМВ (2022) о расширении ряда префиксов
fragment SI9_APP1_2022_RESOLUTION_3 in SI_BROCHURE_9_EN {
    kind resolution;
    locator "appendix/1/27th-cgpm-2022/resolution-3";
    text en official """ On the extension of the range of SI prefixes (CR, 397 and Metrologia, 2023, 60,
013001)
Resolution 3
The General Conference on Weights and Measures (CGPM), at its 27th meeting,
recalling
that decisions were made at previous meetings when it was considered timely to extend the
range of SI prefixes including Resolution 12 (paragraph 3) adopted by the CGPM at its
11th meeting (1960), Resolution 8 adopted by the CGPM at its 12th meeting (1964),
Resolution 10 adopted by the CGPM at its 15th meeting (1975), and Resolution 4 adopted by
the CGPM at its 19th meeting (1991),
considering
− the essential role of the International System of Units (SI) in providing confidence in the
accuracy and global comparability of measurements needed for international trade,
manufacturing, human health and safety, protection of the environment, global climate
studies and scientific research,
− the benefits of encouraging the use of SI units by providing new SI prefixes for scientific
communities that depend on measurements that are not covered by the current range,
Appendix 1 • 197
− the needs of data science in the near future to express quantities of digital information
using orders of magnitude in excess of 1024,
− the importance of timely action to prevent unofficial prefix names being de facto adopted in
other communities,
decides
to add to the list of SI prefixes to be used for multiples and submultiples of units the
following prefixes:
Multiplying factor Name Symbol
1027 ronna R
10−27 ronto r
1030 quetta Q
10−30 quecto q""";
    content_hash "sha256:da9a754f29e9b1412a8e324261700aa844550bca5e2efbe04d4362790bc2c8b3";
}

// --- 8-е издание, английский текст ---------------------------------------

// 8-е изд., §2.1.1.1: определение метра (17-я ГКМВ, 1983)
fragment SI8_DEF_METRE in SI_BROCHURE_8_EN {
    kind provision;
    locator "section/2.1.1.1/metre";
    text en official """The metre is the length of the path travelled by light in vacuum during a
time interval of 1/299 792 458 of a second. The symbol, c0 (or""";
    content_hash "sha256:aa913b40afb141ef278181a4252b925f790d5fd49e42b79b79c96a5945dd70fa";
}

// 8-е изд., §2.1.1.2: килограмм — масса международного прототипа (3-я ГКМВ, 1901)
fragment SI8_DEF_KILOGRAM in SI_BROCHURE_8_EN {
    kind provision;
    locator "section/2.1.1.2/kilogram";
    text en official """The kilogram is the unit of mass; it is equal to the mass of the
international prototype of the kilogram.""";
    content_hash "sha256:fbe54492cb934a3683c27e50785952ae370f8ef1be02524b78c29aa84ddcbb93";
}

// 8-е изд., §2.1.1.3: определение секунды (13-я ГКМВ, 1967/68)
fragment SI8_DEF_SECOND in SI_BROCHURE_8_EN {
    kind provision;
    locator "section/2.1.1.3/second";
    text en official """The second is the duration of 9 192 631 770 periods of the radiation
corresponding to the transition between the two hyperfine levels of the
ground state of the caesium 133 atom.""";
    content_hash "sha256:29fd4f242ae205c2f4eff4c1829d0869885f4ceaad825d125a5010925fcc6edd";
}

// 8-е изд., §2.1.1.4: ампер через силу между проводниками (9-я ГКМВ, 1948)
fragment SI8_DEF_AMPERE in SI_BROCHURE_8_EN {
    kind provision;
    locator "section/2.1.1.4/ampere";
    text en official """The ampere is that constant current which, if maintained in two straight
parallel conductors of infinite length, of negligible circular cross-section,
and placed 1 metre apart in vacuum, would produce between these
conductors a force equal to 2 × 10−7 newton per metre of length.""";
    content_hash "sha256:cda56b70652b58497b97a21036988e3c2b7e92a80c82133dca270aa89a625b83";
}

// 8-е изд., §2.1.1.5: кельвин через тройную точку воды (13-я ГКМВ, 1967/68)
fragment SI8_DEF_KELVIN in SI_BROCHURE_8_EN {
    kind provision;
    locator "section/2.1.1.5/kelvin";
    text en official """The kelvin, unit of thermodynamic temperature, is the fraction 1/273.16 of
the thermodynamic temperature of the triple point of water.""";
    content_hash "sha256:e5eb5d219f4a2ccc5f2af5343fd9da756c5f197316eb25a3e71709b52673873d";
}

// 8-е изд., §2.1.1.6: моль через 0,012 кг углерода-12 (14-я ГКМВ, 1971)
fragment SI8_DEF_MOLE in SI_BROCHURE_8_EN {
    kind provision;
    locator "section/2.1.1.6/mole";
    text en official """1. The mole is the amount of substance of a system which contains as many
elementary entities as there are atoms in 0.012 kilogram of carbon 12; its
symbol is “mol”.""";
    content_hash "sha256:139b4e53cf1c1f254e9b624c1bb33033dfb95d81b98ad9c773fd42554fc05687";
}

// 8-е изд., §2.1.1.7: определение канделы (16-я ГКМВ, 1979)
fragment SI8_DEF_CANDELA in SI_BROCHURE_8_EN {
    kind provision;
    locator "section/2.1.1.7/candela";
    text en official """The candela is the luminous intensity, in a given direction, of a source
that emits monochromatic radiation of frequency 540 × 1012 hertz and that
has a radiant intensity in that direction of 1/683 watt per steradian.""";
    content_hash "sha256:e0fb4dd0e599bac1b91546c9af5aa1a6650e0e66ac8a2c9d1a028b686f7c309c";
}

// 8-е изд., таблица 1: базовые единицы SI
fragment SI8_TABLE_1 in SI_BROCHURE_8_EN {
    kind table;
    locator "section/2.1/table-1";
    text en official """Table 1. SI base units
Base quantity SI base unit
_________________________________ ___________________________
Name Symbol Name Symbol
The symbols for quantities
length l, x, r, etc. metre m are generally single letters
mass m kilogram kg of the Latin or Greek
time, duration t second s alphabets, printed in an
electric current I, i ampere A italic font, and are
thermodynamic temperature T kelvin K recommendations.
amount of substance n mole mol
The symbols for units are
luminous intensity Iv candela cd mandatory, see chapter 5.""";
    content_hash "sha256:6a98194b74b8b00e83c16010c51563c02e10c281acd51dde2e1bf1ce725026f7";
}

// 8-е изд., таблица 3: когерентные производные единицы со специальными названиями
fragment SI8_TABLE_3 in SI_BROCHURE_8_EN {
    kind table;
    locator "section/2.2.2/table-3";
    text en official """Table 3. Coherent derived units in the SI with special names and symbols
SI coherent derived unit (a)
——————————————————————————
Expressed Expressed
in terms of in terms of
Derived quantity Name Symbol other SI units SI base units
plane angle radian (b) rad 1 (b) m/m
solid angle steradian (b) sr (c) 1 (b) m2/m2
frequency hertz (d) Hz s−1
force newton N m kg s−2
pressure, stress pascal Pa N/m2 m−1 kg s−2
energy, work, joule J Nm m2 kg s−2
amount of heat
power, radiant flux watt W J/s m2 kg s−3
electric charge, coulomb C sA
amount of electricity
electric potential difference, volt V W/A m2 kg s−3 A−1
electromotive force
capacitance farad F C/V m−2 kg−1 s4 A2
electric resistance ohm Ω V/A m2 kg s−3 A−2
electric conductance siemens S A/V m−2 kg−1 s3 A2
magnetic flux weber Wb Vs m2 kg s−2 A−1
magnetic flux density tesla T Wb/m2 kg s−2 A−1
inductance henry H Wb/A m2 kg s−2 A−2
Celsius temperature degree Celsius (e) o
C K
luminous flux lumen lm cd sr (c) cd
illuminance lux lx lm/m2 m−2 cd
activity referred to becquerel (d) Bq s−1
a radionuclide (f)
absorbed dose, gray Gy J/kg m2 s−2
specific energy (imparted),
kerma
dose equivalent, sievert (g) Sv J/kg m2 s−2
ambient dose equivalent,
directional dose equivalent,
personal dose equivalent
catalytic activity katal kat s−1 mol""";
    content_hash "sha256:70c7c475f65a3e98d87c1ddf205e4d9809a2f2061473863c9e6f689fc1145e09";
}

// 8-е изд., таблица 6: внесистемные единицы, допускаемые к применению
fragment SI8_TABLE_6 in SI_BROCHURE_8_EN {
    kind table;
    locator "section/4.1/table-6";
    text en official """Table 6. Non-SI units accepted for use with the International System of Units
Quantity Name of unit Symbol for unit Value in SI units
time minute min 1 min = 60 s
hour (a) h 1 h = 60 min = 3600 s
day d 1 d = 24 h = 86 400 s
plane angle degree (b, c) o
1o = (π/180) rad
minute ′ 1′ = (1/60)o = (π/ 10 800) rad
second (d) ″ 1″ = (1/60)′ = (π/ 648 000) rad
area hectare (e) ha 1 ha = 1 hm2 = 104 m2
volume litre (f) L, l 1 L = 1 l = 1 dm3 = 103 cm3 = 10−3 m3
mass tonne (g) t 1 t = 103 kg""";
    content_hash "sha256:50ec898ce13fb38212455e5847b2ff223fbacb138b28b57319764cd4ef10f256";
}

// 8-е изд., таблица 5: префиксы SI от йотта до йокто
fragment SI8_TABLE_5 in SI_BROCHURE_8_EN {
    kind table;
    locator "section/3.1/table-5";
    text en official """Table 5. SI prefixes Telecommunications and
electronics. The names and
symbols for the prefixes
Factor Name Symbol Factor Name Symbol
corresponding to 210, 220,
230, 240, 250, and 260 are,
101 deca da 10−1 deci d respectively: kibi, Ki; mebi,
102 hecto h 10−2 centi c Mi; gibi, Gi; tebi, Ti; pebi,
103 kilo k 10−3 milli m Pi; and exbi, Ei. Thus, for
106 mega M 10−6 micro µ example, one kibibyte
would be written:
109 giga G 10−9 nano n
1 KiB = 210 B = 1024 B,
1012 tera T 10−12 pico p where B denotes a byte.
1015 peta P 10−15 femto f Although these prefixes are
1018 exa E 10−18 atto a not part of the SI, they
1021 zetta Z 10−21 zepto z should be used in the field
1024 yotta Y 10−24 yocto y of information technology""";
    content_hash "sha256:033ee040cd3b4a114dbe4e5fa1373cbbe6336dfe99324ee9ae51b65f9c7c871e";
}