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Total suspended solids

(Environmental Engineering) (TSS) is the amount of suspended (filterable) matter in a water.
 ศัพท์ช่างภาษาอังกฤษ – ไทย

Nitrogenous oxygen demand (NOD)

(Environmental Engineering) The amount of oxygen required to oxidize any ammonia present in a water.
 ศัพท์ช่างภาษาอังกฤษ – ไทย

Carbonaceous biochemical oxygen demand (CBOD)

(Environmental Engineering) The amount of oxygen required to oxidize any carbon containing matter present in a water.
 ศัพท์ช่างภาษาอังกฤษ – ไทย

Total solids

(Environmental Engineering) (TS) is the amount of organic and inorganic matter which is contained in a water.
 ศัพท์ช่างภาษาอังกฤษ – ไทย

BETA RATIO (#)

(english) The amount, expressed as a ratio, of particles in a fluid stream upstream of a filter, after the fluid posses through a filter, divided by the amount of particles downstream, for a particular size particle.
 ศัพท์ช่างภาษาอังกฤษ – ไทย

Chemical oxygen demand (COD)

(Environmental Engineering) The amount of oxygen required to oxidize any organic matter in the water using harsh chemical conditions.
 ศัพท์ช่างภาษาอังกฤษ – ไทย

Biochemical oxygen demand (BOD)

(Environmental Engineering) The amount of oxygen required to oxidize any organic matter present in a water during a specified period of time, usually 5 days. It is an indirect measure of the amount of organic matter present in a water.
 ศัพท์ช่างภาษาอังกฤษ – ไทย

Volatile solids

(Environmental Engineering) (VS) is the amount of matter which volatilizes (or burns) when a water sample is heated to 550EC.Volatile suspended solids
 ศัพท์ช่างภาษาอังกฤษ – ไทย

Water-Cement Ratio

(Concrete Engineering) The ratio of the amount of water, exclusive of that absorbed by the aggregates, to the amount of cement in a concrete mix. Typically expressed as percentage of water, by weight in pounds, to the total weight of portland cement, fly ash, and any other cementitious material, per cubic yard, exclusive of any aggregates.
 ศัพท์ช่างภาษาอังกฤษ – ไทย

Ultimate biochemical oxygen demand (BODu)

(Environmental Engineering) The total amount of oxygen required to oxidize any organic matter present in a water, i.e. after an extended period, such as 20 or 30 days.
 ศัพท์ช่างภาษาอังกฤษ – ไทย

Air Content

(Concrete Engineering) The amount of entrained or entrapped air in concrete or mortar, exclusive of pore space in aggregate particles, usually expressed as a percentage of total volume of concrete or mortar.
 ศัพท์ช่างภาษาอังกฤษ – ไทย

Maximum Size Aggregate

(Concrete Engineering) Aggregate whose largest particle size is present in sufficient quantity to affect the physical properties of concrete; generally designated by the sieve size on which the maximum amount permitted to be retained is 5 or 10 percent by weight.
 ศัพท์ช่างภาษาอังกฤษ – ไทย