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  2. Total suspended solids - Wikipedia

    en.wikipedia.org/wiki/Total_suspended_solids

    At the lower end, TSS relies on a cut-off established by properties of the filter being used. At the upper end, the cut-off should be the exclusion of all particulates too large to be "suspended" in water. However, this is not a fixed particle size but is dependent upon the energetics of the situation at the time of sampling: moving water ...

  3. List of traffic separation schemes - Wikipedia

    en.wikipedia.org/wiki/List_of_Traffic_Separation...

    Some 15 TSS schemes can be found in this area: in the Red Sea is traffic using the Suez Channel while in the Persian Gulf much of the traffic comprises the (large) oil and gas tankers to Iran and Iraq. All TSS's here are governed by the IMO, except the Approaches to Yanbu which is the responsibility of the Kingdom of Saudi Arabia. Gulf of Suez

  4. Traffic separation scheme - Wikipedia

    en.wikipedia.org/wiki/Traffic_Separation_Scheme

    TSSs are used to regulate the traffic at busy, confined waterways or around capes. Within a TSS there is normally at least one traffic-lane in each main-direction, turning-points, deep-water lanes and separation zones between the main traffic lanes. Most TSS include 'inshore traffic zones' between the (outer) lines and the coast.

  5. List of U.S. security clearance terms - Wikipedia

    en.wikipedia.org/wiki/List_of_U.S._security...

    These levels often appear in employment postings for Defense related jobs and other jobs involving substantial amounts of responsibility, such as air traffic control or nuclear energy positions. The different organizations in the United States Federal Government use different terminology and lettering. Security clearances can be issued by many ...

  6. Membership levels of the Girl Scouts of the USA - Wikipedia

    en.wikipedia.org/wiki/Membership_levels_of_the...

    Girl Scouts wear uniforms consisting of a white shirt and khaki bottom under the appropriate uniform item for their level: Cookie (siblings of a girl scout before Kindergarten), a blue tunic or vest for Daisies (kindergarten and grade 1), a brown sash or vest for Brownies (grades 2-3), a green vest or sash for Juniors (grades 4-5) and a tan ...

  7. List of musical symbols - Wikipedia

    en.wikipedia.org/wiki/List_of_musical_symbols

    Musical symbols are marks and symbols in musical notation that indicate various aspects of how a piece of music is to be performed. There are symbols to communicate information about many musical elements, including pitch, duration, dynamics, or articulation of musical notes; tempo, metre, form (e.g., whether sections are repeated), and details about specific playing techniques (e.g., which ...

  8. IQ classification - Wikipedia

    en.wikipedia.org/wiki/IQ_classification

    Terman chose the category names for score levels on the Stanford–Binet test. When he first chose classification for score levels, he relied partly on the usage of earlier authors who wrote, before the existence of IQ tests, on topics such as individuals unable to care for themselves in independent adult life.

  9. Train Protection & Warning System - Wikipedia

    en.wikipedia.org/wiki/Train_Protection_&_Warning...

    TPWS was developed by British Rail and its successor Railtrack, following a determination in 1994 that British Rail's Automatic Train Protection system was not economical, costing £600,000,000 equivalent to £979,431,929 in 2019 to implement, compared to value in lives saved: £3-£4 million (4,897,160 - 6,529,546 in 2019), per life saved, which was estimated to be 2.9 per year.