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  2. New York Codes, Rules and Regulations - Wikipedia

    en.wikipedia.org/wiki/New_York_Codes,_Rules_and...

    The New York Codes, Rules and Regulations (NYCRR) contains New York state rules and regulations. [1] The NYCRR is officially compiled by the New York State Department of State 's Division of Administrative Rules.

  3. List of New York area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_New_York_area_codes

    Area code Year Current region 212: 1947 New York City: Manhattan only; component of 212/332/646 and 917 overlays 315: 1947 Syracuse, Utica, Watertown, and north central New York; component of 315/680 overlay 329: 2023: Poughkeepsie, Middletown, Newburgh, West Point, Goshen and southeastern New York; component of 845/329 overlay 332: 2017

  4. Optical beam smoke detector - Wikipedia

    en.wikipedia.org/wiki/Optical_beam_smoke_detector

    An optical beam smoke detector is a device that uses a projected beam of light to detect smoke across large areas, [1] typically as an indicator of fire. [2] They are used to detect fires in buildings where standard point smoke detectors would either be uneconomical [3] or restricted for use by the height of the building. Optical beam smoke ...

  5. Smoke detector - Wikipedia

    en.wikipedia.org/wiki/Smoke_detector

    Smoke detector mounted on a ceiling. A smoke detector is a device that senses smoke, typically as an indicator of fire.Smoke detectors/alarms are usually housed in plastic enclosures, typically shaped like a disk about 125 millimetres (5 in) in diameter and 25 millimetres (1 in) thick, but shape and size vary.

  6. Gold as an investment - Wikipedia

    en.wikipedia.org/wiki/Gold_as_an_investment

    Gold prices (US$ per troy ounce), in nominal US$ and inflation adjusted US$ from 1914 onward. Price of gold 1915–2022 Gold price history in 1960–2014 Gold price per gram between Jan 1971 and Jan 2012. The graph shows nominal price in US dollars, the price in 1971 and 2011 US dollars.

  7. ISO 3166-2:US - Wikipedia

    en.wikipedia.org/wiki/ISO_3166-2:US

    ISO 3166-2:US is the entry for the United States in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1.

  8. MIL-STD-1168 - Wikipedia

    en.wikipedia.org/wiki/MIL-STD-1168

    (For example, the United States uses the NCB codes 00 and 01 and Canada was assigned 20 and 21; the first number was for pre-1975 production and the second for 1975 and later production.) The 7-digit code number that follows is the unique 3-digit interfix number and 4-digit sequence number of the item.

  9. Fire detection - Wikipedia

    en.wikipedia.org/wiki/Fire_detection

    In dwellings, smoke detectors are often stand-alone devices. In non-domestic buildings, fire detection will typically take the form of a fire alarm system, incorporating one or more of the following automatic devices: Heat detector; Smoke detector; Flame detector; Fire gas detector