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2. Sodium-vapor lamp - Wikipedia

   en.wikipedia.org/wiki/Sodium-vapor_lamp

   A high-pressure sodium street light in Toronto A high-pressure sodium-vapor lamp An HPS lamp that isn't entirely off. A sodium-vapor lamp is a gas-discharge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near 589 nm. Two varieties of such lamps exist: low pressure, and high pressure.

3. High-intensity discharge lamp - Wikipedia

   en.wikipedia.org/wiki/High-intensity_discharge_lamp

   Diagram of a high-pressure sodium lamp A high-pressure sodium lamp, Philips Master SDW-T 100W. Various types of chemistry are used in the arc tubes of HID lamps, depending on the desired characteristics of light intensity, correlated color temperature, color rendering index (CRI), energy efficiency, and lifespan. Varieties of HID lamp include:

4. Flocculation - Wikipedia

   en.wikipedia.org/wiki/Flocculation

   4x speed video of floc settling after adding flocculant polymers during a jar test. In colloidal chemistry , flocculation is a process by which colloidal particles come out of suspension to sediment in the form of floc or flake, either spontaneously or due to the addition of a clarifying agent .

5. Clarifying agent - Wikipedia

   en.wikipedia.org/wiki/Clarifying_agent

   Long-chain polymer flocculants, such as modified polyacrylamides, are manufactured and sold by flocculant producers. These can be supplied in dry or liquid form for use in the flocculation process. The most common liquid polyacrylamide is supplied as an emulsion with 10-40% actives and the rest is a non-aqueous carrier fluid, surfactants and ...

6. Emergency eyewash and safety shower station - Wikipedia

   en.wikipedia.org/wiki/Emergency_eyewash_and...

   The head or heads of the Eyewash or Eye/Face wash must be 6" (15.3 cm) away from any obstructions (Section 5.4.4). The valve must allow for 1 second operation and the valve shall remain open without the use of the operator's hands until intentionally closed. (Section 5.1.4, 5.2).

7. How to Clean a Shower Head (And Why You Really Need To) - AOL

   www.aol.com/lifestyle/clean-shower-head-why...

   Once the shower head is reinstalled, turn on the shower for a few minutes to clear out any residual vinegar. You may want to start with a gentle stream and then increase, just in case the shower ...

8. Particle aggregation - Wikipedia

   en.wikipedia.org/wiki/Particle_aggregation

   Light transmission. The variation of transmitted light through an aggregating suspension can be studied with a regular spectrophotometer in the visible region. As aggregation proceeds, the medium becomes more turbid, and its absorbance increases.

9. Metal-halide lamp - Wikipedia

   en.wikipedia.org/wiki/Metal-halide_lamp

   Like other gas-discharge lamps such as the very-similar mercury-vapor lamps, metal-halide lamps produce light by ionizing a mixture of gases in an electric arc.In a metal-halide lamp, the compact arc tube contains a mixture of argon or xenon, mercury, and a variety of metal halides, such as sodium iodide and scandium iodide. [7]