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  2. United States dollar - Wikipedia

    en.wikipedia.org/wiki/United_States_dollar

    The U.S. dollar was originally defined under a bimetallic standard of 371.25 grains (24.057 g) (0.7735 troy ounces) fine silver or, from 1837, 23.22 grains (1.505 g) fine gold, or $20.67 per troy ounce. The Gold Standard Act of 1900 linked the dollar solely to gold. From 1934, its equivalence to gold was revised to $35 per troy ounce. Since ...

  3. Water supply and sanitation in Brazil - Wikipedia

    en.wikipedia.org/wiki/Water_supply_and...

    It has been estimated that investments in water and sanitation infrastructure in the order of R$9.6 billion (US$4.5bn or $24 per capita or 0.7% of GDP) per year, or almost three times the level of 2005, would be needed to achieve universal access. The Program for the Acceleration of Economic Growth raised investment levels since then.

  4. International Organization for Standardization - Wikipedia

    en.wikipedia.org/wiki/International_Organization...

    www .iso .org. [2] The International Organization for Standardization ( ISO / ˈaɪsoʊ / [3]) is an independent, non-governmental, international standard development organization composed of representatives from the national standards organizations of member countries. [4] Membership requirements are given in Article 3 of the ISO Statutes.

  5. List of countries by tax rates - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by_tax_rates

    Map of the world showing national-level sales tax / VAT rates as of October 2019. Additional local taxes may apply. [citation needed]A comparison of tax rates by countries is difficult and somewhat subjective, as tax laws in most countries are extremely complex and the tax burden falls differently on different groups in each country and sub-national unit.

  6. Standard cubic centimetres per minute - Wikipedia

    en.wikipedia.org/wiki/Standard_cubic_centimetres...

    Standard cubic centimetres per minute. Standard cubic centimeters per minute ( SCCM) is a unit used to quantify the flow rate of a fluid. 1 SCCM is identical to 1 cm³ STP /min. Another expression of it would be Nml/min. These standard conditions vary according to different regulatory bodies. One example of standard conditions for the ...

  7. Davis–Bacon Act of 1931 - Wikipedia

    en.wikipedia.org/wiki/Davis–Bacon_Act_of_1931

    The Davis–Bacon Act of 1931 is a United States federal law that establishes the requirement for paying the local prevailing wages on public works projects for laborers and mechanics. It applies to "contractors and subcontractors performing on federally funded or assisted contracts in excess of $2,000 for the construction, alteration, or ...

  8. Compact Disc Digital Audio - Wikipedia

    en.wikipedia.org/wiki/Compact_Disc_Digital_Audio

    The standard is defined in the Red Book, one of a series of Rainbow Books (named for their binding colors) that contain the technical specifications for all CD formats. CDDA utilises pulse-code modulation (PCM) and uses a 44,100 Hz sampling frequency and 16-bit resolution, and stores up to 80 minutes of stereo audio per disc.

  9. Data-rate units - Wikipedia

    en.wikipedia.org/wiki/Data-rate_units

    Data-rate units. In telecommunications, data transfer rate is the average number of bits ( bitrate ), characters or symbols ( baudrate ), or data blocks per unit time passing through a communication link in a data-transmission system. Common data rate units are multiples of bits per second (bit/s) and bytes per second (B/s).