ASTM D4692-87(1996)
Historical Standard: ASTM D4692-87(1996) Standard Practice for Calculation and Adjustment of Sulfate Scaling Salts (CaSO 4 , SrSO 4 , and BaSO 4 ) for Reverse Osmosis and Nanofiltration
SUPERSEDED (see Active link, below)
ASTM D4692
1. Scope
1.1 This practice covers the calculation and adjustment of calcium, strontium, and barium sulfates 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).
1.2 This practice is applicable to both brackish waters and seawaters.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D511 Test Methods for Calcium and Magnesium In Water
D516 Test Method for Sulfate Ion in Water
D1129 Terminology Relating to Water
D3352 Test Method for Strontium Ion in Brackish Water, Seawater, and Brines
D4194 Test Methods for Operating Characteristics of Reverse Osmosis and Nanofiltration Devices
D4195 Guide for Water Analysis for Reverse Osmosis and Nanofiltration Application
D4382 Test Method for Barium in Water, Atomic Absorption Spectrophotometry, Graphite Furnace
D6161 Terminology Used for Microfiltration, Ultrafiltration, Nanofiltration and Reverse Osmosis Membrane Processes
Keywords
barium; calcium; membrane fouling; membrane scaling; nanofiltration; reverse osmosis; strontium; sulfate scaling; Sulfate scaling salts; Water content; Barium sulfate (BaSO 4 ); Brackish water/brines; Concentration (of elements); Nanofiltration (NF) materials/applications; Reverse osmosis (RO) installations; Saltwater; Scale control; Seawater (natural/synthetic); Strontium sulfate (SrSO 4 );
ICS Code
ICS Number Code 71.120.99 (Other equipment for the chemical industry)
DOI: 10.1520/D4692-87R96
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