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At 1 ppm the solution is a very pale yellow. As the concentration increases the colour becomes a more vibrant yellow, then orange, with the final 10,000 ppm a deep red colour. In science and engineering , the parts-per notation is a set of pseudo-units to describe small values of miscellaneous dimensionless quantities , e.g. mole fraction or ...
Total dissolved solids (TDS) is a measure of the dissolved combined content of all inorganic and organic substances present in a liquid in molecular, ionized, or micro-granular (colloidal sol) suspended form. TDS are often measured in parts per million (ppm). TDS in water can be measured using a digital meter. [1]
Pashtun Tahafuz Movement (PTM), also known as the Pashtun Protection Movement (PPM), a human rights movement in Pakistan for the Pashtun people; People's Monarchist Party (Portugal) (Portuguese: Partido Popular Monárquico), a Portuguese political party; People's Progressive Movement (Cayman Islands) Progressive Party of Maldives
SIM, meaning Subject Is Message. Used when the entire content of the email is contained in the subject and the body remains empty. This saves the recipient's time because they then do not have to open the email. SSIA, meaning Subject Says It All. Used when the entire content of the email is contained in the subject and the body remains empty.
A peak programme meter (PPM) is an instrument used in professional audio that indicates the level of an audio signal. Different kinds of PPM fall into broad categories: True peak programme meter. This shows the peak level of the waveform no matter how brief its duration. Quasi peak programme meter (QPPM). This only shows the true level of the ...
Total suspended solids (TSS) is the dry-weight of suspended particles, that are not dissolved, in a sample of water that can be trapped by a filter that is analyzed using a filtration apparatus known as sintered glass crucible.
Project production management (PPM) [1] [2] is the application of operations management [2] [3] to the delivery of capital projects. The PPM framework is based on a project as a production system view, [ 1 ] [ 2 ] [ 3 ] in which a project transforms inputs (raw materials, information, labor, plant & machinery) into outputs (goods and services).
Dry matter can refer to the dry portion of animal feed. A substance in the feed, such as a nutrient or toxin, can be referred to on a dry matter basis (abbreviated DMB) to show its level in the feed (e.g., ppm). Considering nutrient levels in different feeds on a dry matter basis (rather than an as-is basis) makes a comparison easier because ...