• ISO 3166-1 codes for country and dependent area names, first published in 1974
• ISO 3166-2 defines codes for the principal subdivisions of a country or dependent area.
• ISO 3166-3 defines codes for superseded ISO 3166-1 codes, first published in 1998.
• ISO3166-1 (numeric) defines A2 (ISO 3166-1 alpha-2) and A3 (ISO 3166-1 alpha-2) codes for countries and territories, and IANA assigned them for ccTLD root domain names on Internet (except for GB where IANA historically kept UK).
  Territories: only UN members will be represented by an A2 code assignment.
  The ISO 3166-1 numerical code is also defined in United Nations Statistics references.

• Alphabetic code for the representation of currencies

The currency code is composed of: the two letters ISO 3166-1 alpha-2 code plus the initial of the currency name.

Examples:

CNY = CN (ISO 3166-1 alpha-2) for China plus Y (initial for the Yuan)

ZAR = ZA (ISO 3166-1 alpha-2) for South Africa plus Z (initial for the Rand)

GBP = GB (ISO 3166-1 alpha-2) for Great Britain plus P (initial for the pound)

Kiwies= NZD, Aussies = AUD, Swissies = CHF,...

ISIN structure:

Also see ISO 10962 - CFI: Classification of Financial Instruments

YYYY four digit year,
MM two digit month
DD two digit day
HH 2 digit hour, 24H format
MM 2 digit minutes
SS two digit seconds
ffff fractional seconds, as long as needed

Punctuations may be stripped, but ISO recommends to separate date and time by the letter T - example 20031010T111220
If you use the Universal Time, you would add the Z letter at the end of the time segment - example: 2003-10-10 11:12Z or 20031010T1112Z.

Other time notations are reputed local. See Markus Kuhn's summary and discussion

Base units (a.k.a. MKS System, for Metre, Kilo, Seconde)

• the meter for distance,
• the kilogram for mass,
• the second for time,
• the ampere for electric current,
• the kelvin for temperature,
• the mole for amount of substance, and
• the candela for intensity of light.

And 22  SI derived units

For our American friends still not using international units of measures, their own standard organisation (NIST) has this *.pdf table "General Tables of Units of Measurement "

Standards and drafts of:
ISO/TC 68/SC 4 Securities and related financial instruments
ISO 6166:2001 Securities and related financial instruments -- International securities identification numbering system (ISIN)
ISO 6536:1981 Bank operations -- Standard scheme for drawing lists
ISO/AWI 8109 Banking and related financial services -- Securities -- Format of Eurobonds
ISO 8109:1990 Banking and related financial services -- Securities -- Format of Eurobonds
ISO 8532:1995 Securities -- Format for transmission of certificate numbers
ISO 9019:1995 Securities -- Numbering of certificates
ISO 9144:1991 Securities -- Optical character recognition line -- Position and structure
ISO/WD 9144 Securities -- Optical character recognition line -- Position and structure
ISO 10383:1992 Codes for exchanges and regulated markets -- Market identifier codes (MIC)
ISO/WD 10383 Codes for exchanges and regulated markets -- Market identifier codes (MIC)
ISO 10962 Securities and related financial instruments -- Classification of Financial Instruments (CFI code)
ISO 10962:1997 Securities -- Classification of Financial Instruments (CFI code)
ISO 10962:1997/Cor 1:1997 No title
ISO 15022-1:1999 Securities -- Scheme for messages (Data Field Dictionary) -- Part 1: Data field and message design rules and guidelines
ISO 15022-1:1999/Cor 1:1999 .
ISO 15022-2:1999 Securities -- Scheme for messages (Data Field Dictionary) -- Part 2: Maintenance of the Data Field Dictionary and Catalogue of Messages
ISO 15022-2:1999/Cor 1:1999 .
ISO/WD 17237 Securities and related financial instruments -- Delivery and appearance code
ISO/WD 17238 Securities and related financlal instruments -- Industry sector classification reference (ISCR)
ISO/WD 18773-1 Securities and related financlal instruments -- Abbreviations -- Part 1: Financial instrument types and characteristics
ISO/WD 18773-2 Securities and related financlal instruments -- Abbreviations -- Part 2: Issuer names
ISO/WD 18774 Securities and related financlal instruments -- Financlal instruments short description

The same site provides what we always wanted to know but were afraid to ask, a table of the stage code of the international system:

International harmonized stage code system

STAGE	SUB-STAGE
	00	20	60	90 Decision
	Registration	Start of main action	Completion of main action	92 Repeat an earlier phase	93 Repeat current phase	98 Abandon	99 Proceed
00 Preliminary stage	00.00 Proposal for new project received	00.20 Proposal for new project under review	00.60 Review summary circulated			00.98 Proposal for new project abandoned	00.99 Approval to ballot proposal for new project
10>Proposal stage	10.00 Proposal for new project registered	10.20 New project ballot initiated	10.60 Voting summary circulated	10.92 Proposal returned to submitter for further definition		10.98 New project rejected	10.99 New project approved
20 Preparatory stage	20.00 New project registered in TC/SC work programme	20.20 Working draft (WD) study initiated	20.60 Comments summary circulated			20.98 Project deleted	20.99 WD approved for registration as CD
30 Committee stage	30.00 Committee draft (CD) registered	30.20 CD study/ballot initiated	30.60 Comments/ voting summary circulated	30.92 CD referred back to Working Group		30.98 Project deleted	30.99 CD approved for registration as DIS
40 Enquiry stage	40.00 DIS registered	40.20 DIS ballot initiated: 5 months	40.60 Voting summary dispatched	40.92 Full report circulated: DIS referred back to TC or SC	40.93 Full report circulated: decision for new DIS ballot	40.98 Project deleted	40.99 Full report circulated: DIS approved for registration as FDIS
50 Approval stage	50.00 FDIS registered for formal approval	50.20 FDIS ballot initiated: 2 months. Proof sent to secretariat	50.60 Voting summary dispatched. Proof returned by secretariat	50.92 FDIS referred back to TC or SC		50.98 Project deleted	50.99 FDIS approved for publication
60 Publication stage	60.00 International Standard under publication		60.60 International Standard published
90 Review stage		90.20 International Standard under periodical review	90.60 Review summary dispatched	90.92 International Standard to be revised	90.93 International Standard confirmed		90.99 Withdrawal of International Standard proposed by TC or SC
95 Withdrawal stage		95.20 Withdrawal ballot initiated	95.60 Voting summary dispatched	95.92 Decision not to withdraw International Standard			95.99 Withdrawal of International Standard