?? ????????? (??????? ????? ????)
?????????
(mark: kg) ??? ???? ??
SI
???? ??? ? ?? ?????????? ??????? ???????, ??? ????????????? ?????? ?????????, IPK,
[?]
(IPK; ???? ??? ??????? ??? ?? ??????? K)?????? ?????? ??, ??? ??? ????? ?????? ???? ?? ?? ???? ?? ?????? ?????? ???? ??? ? ??? ??????? SI ???? ???, ????? ?????? (????) ???? ???? ??? ??? ?
?? ??, ???? ?????????????? ?????????? ??????? "??????? ?????????" (Planck constant) 6.62607015×10?34 kg?m2?s?1 ???? ?????? ?????? ?
[?]
[?]
?? ????????? ?.??? ???? ???? ??? ? ?? ?? ?? ???? ????????? ?????? ? ?????? ?????? ??????? ?? ???? ????? ??? ???????? ?.?? °C (39.16 °F; 277.13 K) ???? ?? ???? ????????? ?????? ,??? ???? ??????? ????? ???????? ???? ???? ?
????? ???????? ??? ??????????? ?????? ??? ???? ???????, ?????? ???? ??? ???? ?????????? ??? ??? ? ????? ?????? ??? ?????? ???????? ????????????? ??? ??? ???????????? ??? ?????? ?
[?]
.
SI ???? ????????? ??? ??????? ?????????? ??????? ???? ???????? ?????? ? ???? ???? ??????? ?????????????? ??? ? ???????? IPK?? ??? ???? ???????? ??????, ??'???
CIPM
???? ??????? ??? ?? ??????? ??, ??????????? ???????? ??? ??????????? ???????? ?????? ?
[?]
SI ?????? ????? ???? ??? ?????? ????? ???? ??????? ????? ??? ????? ?????, ??????? ??? ??????
?????
???? ??? ????????, ?????? ????????? ???? ???????? ????? , ???? ???? ??????? ??? ???? ?????? ??? ??????
[?]
Eg? ?? ?????????? ?????? ??? ??? 1 mg (?? ?????????), ?????? ??? 1 μkg (?? ?????? ?????????) ????? ?
- ??????????? ??????? ????????? ??? ????? “mcg”, ????? ???? ???? ??? ???? ???? ????????, "μ" ?????? ?????? ??????? ????? ?????? ??????? ??????? ??????? ????? ? ??? ???? ???????? ??????? ????
[?]
???? ????????? ??? "?????????" ?????? ? ??? ???????? ????? ???? ??? ???? "millicentigram" ???? ??????? ???? ?? ???????? ??????? ??? ???? ???? ?????? ??? ?
- ???? ??? "megagram" ???? ???? ???????? ???? ???? ???? ?????? ???? ????? ???? ???? ??????? ??????? ????? ???????? ???????? ??????? ????????? ?????? ?????? ?????? ? ?????? ?????? ??????? ????, ???? "??" ????? ?????? ?????? ? ?? ??? ????? ??????, ?? ???? ??????? CIPM?????? ???? ?????? ? ??? SI ???? ?????? ???? BIPM?????? ??????? ?????? ? ???? ?? SI ???? ????? ???? ?????? ??????? ????? ???????? "??????? ??" ??????? ?
[?]
???? ??? "megatonne" , "Mount" ??? ??????? "teragram" (????) ??????, ???? ?????? ????????? ?????? ????? ????? ????? ?
???? ??????? ????? ???? ????? ??????? ? ??? ????? ??????? ??????? ???? ???? ??????? ????????? ???? ??? ??????? ? ??? ??%
????????
??? ??%
???????
?? ????? ????? ?
[?]
??????? ??????????? ??????? ?????????? ????, ??????? ??????? ???? ??? ???? ????? ? ?????
Sevres
, ??????? "????????????? ??????" (BIPM)?? ???????? / ???????-?????? ?????? ??? ?????????? ? ?????? ???? ????? ?????????, ?????????? ?????? "?????????" ??????? ?????, ?????? ????? "?????? (?????) " ???? ??????????? ?
??? ??????????? ???? ??? ????? ??? ??????? ? ??? ???, ????? ???? ??? ????? ???????? ???? ??????? ? ????? ?????? ??????? ???? ??? ???? ??????? ????? ???? ????? ??? ?????????? ?
- ↑
BIMP:
Resolution of the 1st CGPM (1889)
- ↑
Draft Resolution A "On the revision of the International System of units (SI)" to be submitted to the CGPM at its 26th meeting (2018)
(PDF)
, archived from
the original
(PDF)
on 2018-04-29
, retrieved
2019-10-14
- ↑
Decision CIPM/105-13 (October 2016)
. The day is the 144th anniversary of the
Metre Convention
.
- ↑
NIST:
Converting Measurements to Metric--NIST FAQs
Archived
2008-06-11 at the
Wayback Machine
.
; the U.K.’s National Weights & Measures Laboratory:
Metric Conversions
Archived
2008-07-28 at the
Wayback Machine
.
; and NIST: Fed-Std-376B,
Preferred Metric Units for General Use By the Federal Government
, Section 5.2.1 Mass (weight) (
294 KB PDF, here
).
- ↑
Proceedings of the 94th meeting (October 2005) of the International Committee for Weights and Measures
, (
1.1 MB zip file, here
)
- ↑
BIPM: SI Brochure: Section 3.2,
The kilogram
- ↑
The practice of using the abbreviation “mcg” rather than the SI symbol “μg” was formally mandated for medical practitioners in 2004 by the Joint Commission on Accreditation of Healthcare Organizations (JCAHO) in their
“Do Not Use” List: Abbreviations, Acronyms, and Symbols
Archived
2006-10-07 at the
Wayback Machine
. because hand-written expressions of “μg” can be confused with “mg”, resulting in a thousand-fold overdosing. The mandate was also adopted by the
Institute for Safe Medication Practices.
- ↑
BIPM: SI Brochure: Section 4.1,
Non-SI units accepted for use with the SI, and units based on fundamental
constants:
Table 6
- ↑
"Practical realization of the definition of the kilogram"
. BIMP.