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2. Universal Product Code - Wikipedia

   en.wikipedia.org/wiki/Universal_Product_Code

   A UPC barcode. The Universal Product Code (UPC or UPC code) is a barcode symbology that is used worldwide for tracking trade items in stores.. The chosen symbology has bars (or spaces) of exactly 1, 2, 3, or 4 units wide each; each decimal digit to be encoded consists of two bars and two spaces chosen to have a total width of 7 units, in both an "even" and an "odd" parity form, which enables ...

3. List of ISO 639 language codes - Wikipedia

   en.wikipedia.org/wiki/List_of_ISO_639_language_codes

   This table lists all two-letter codes (set 1), one per language for ISO 639 macrolanguage, and some of the three-letter codes of the other sets, formerly parts 2 and 3. Entries in the Scope column distinguish: Individual language; Collections of related languages; Macrolanguages; The Type column distinguishes: Ancient languages (extinct since ...

4. Hospital emergency codes - Wikipedia

   en.wikipedia.org/wiki/Hospital_emergency_codes

   Hospital emergency codes are coded messages often announced over a public address system of a hospital to alert staff to various classes of on-site emergencies. The use of codes is intended to convey essential information quickly and with minimal misunderstanding to staff while preventing stress and panic among visitors to the hospital.

5. Telephone numbers in Canada - Wikipedia

   en.wikipedia.org/wiki/Telephone_numbers_in_Canada

   For international access the NANP is assigned the country code 1, which is dialed as a prefix in the international E.164 telephone numbering plan.. The trunk prefix for dialing long-distance calls, across numbering plan area (NPA) boundaries within Canada or to other NANP countries, is also 1.

6. List of international airports in Canada - Wikipedia

   en.wikipedia.org/wiki/List_of_international...

   This is a list of international airports in Canada.. As defined by Transport Canada, an international airport: . means any airport designated by the Contracting State, in whose territory it is situated, as an airport of entry and departure for international commercial air traffic, where the formalities incident to customs, immigration, public health, animal and plant quarantine and similar ...

7. Canadian Electrical Code - Wikipedia

   en.wikipedia.org/wiki/Canadian_Electrical_Code

   The Canadian Electrical Code, CE Code, or CSA C22.1 is a standard published by the Canadian Standards Association pertaining to the installation and maintenance of electrical equipment in Canada. The first edition of the Canadian Electrical Code was published in 1927. [1] The current (26th) edition was published in March of 2024.