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  2. Cooling capacity - Wikipedia

    en.wikipedia.org/wiki/Cooling_capacity

    Cooling capacity is the measure of a cooling system's ability to remove heat. [1] It is equivalent to the heat supplied to the evaporator/boiler part of the refrigeration cycle and may be called the "rate of refrigeration" or "refrigeration capacity".

  3. Ton of refrigeration - Wikipedia

    en.wikipedia.org/wiki/Ton_of_refrigeration

    It was originally defined as the rate of heat transfer that results in the freezing or melting of 1 short ton (2,000 lb; 907 kg) of pure ice at 0 °C (32 °F) in 24 hours. [1] [2] The modern definition is exactly 12,000 Btu IT /h (3.516853 kW). Air-conditioning and refrigeration equipment capacity in the U.S. is often specified in "tons" (of ...

  4. Pakistan Security Printing Corporation - Wikipedia

    en.wikipedia.org/wiki/Pakistan_Security_Printing...

    Pakistan Security Printing Corporation (PSPC) is a wholly owned subsidiary of the State Bank of Pakistan and prints security products such as Pakistani banknotes and prize bonds for the federal government. [1] Pakistan Security Printing Corporation was established as a joint venture company by Government of Pakistan on March 10, 1949, with M/s ...

  5. Paper size - Wikipedia

    en.wikipedia.org/wiki/Paper_size

    Paper size standards govern the size of sheets of paper used as writing paper, stationery, cards, and for some printed documents. The ISO 216 standard, which includes the commonly used A4 size, is the international standard for paper size.

  6. ISO 216 - Wikipedia

    en.wikipedia.org/wiki/ISO_216

    The standard defines the "A", "B" and "C" series of paper sizes, which includes the A4, the most commonly available paper size worldwide. Two supplementary standards, ISO 217 and ISO 269 , define related paper sizes; the ISO 269 " C " series is commonly listed alongside the A and B sizes.

  7. List of companies of Pakistan - Wikipedia

    en.wikipedia.org/wiki/List_of_companies_of_Pakistan

    According to the Economic complexity index, Pakistan is the 67th largest export economy in the world and the 106th most complex economy. [10] During the fiscal year 2015–16, Pakistan's exports stood at US$20.81 billion and imports at US$44.76 billion, resulting in a negative trade balance of US$23.96 billion.

  8. Printing and writing paper - Wikipedia

    en.wikipedia.org/wiki/Printing_and_writing_paper

    [citation needed] A4 ("metric") paper is easier to obtain in the US than US letter can be had elsewhere. [citation needed]. The ISO 216:2007 is the current international standard for paper sizes, including writing papers and some types of printing papers. This standard describes the paper sizes under what the ISO calls the A, B, and C series ...

  9. Industry of Pakistan - Wikipedia

    en.wikipedia.org/wiki/Industry_of_Pakistan

    The Rekodiq project is estimated to produce 200,000 tons of copper and 400,000 ounces of gold per year, at an estimated value of $1.25 billion at current market prices. The copper and gold are currently traded at about $5,000 per ton and $600 per ounce respectively in the international market. [5]