ASTM D4993 Standard Practice for Calculation and Adjustment of Silica (SiO2) Scaling for Reverse Osmosis
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ASTM International
Standard Practice for Calculation and Adjustment of Silica (SiO2) Scaling for Reverse Osmosis
N D4993
Annotation
This practice covers the calculation and adjustment of silica (SiO2) for the concentrate stream of a reverse osmosis system. The calculations are used to determine the need for scale control in the operation and design of reverse osmosis installations. This practice is applicable for all types of reverse osmosis devices (tubular, spiral wound, and hollow fiber).
This practice is applicable to both brackish waters and seawaters.
The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Автоматический перевод:
Общепринятая практика для вычисления и регулирования кварца (SiO2), измеряющий для обратного осмоса
Эта практика покрывает вычисление и корректировку кварца (SiO2) для потока концентрата обратной системы осмоса. Вычисления используются для определения потребности в управлении масштабом в работе и дизайне обратных установок осмоса. Эта практика применима для всех типов обратных устройств осмоса (трубчатая, спиральная рана и полое волокно).



