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ASTM D3739-94(1998)

Historical Reaffirmation

Standard Practice for Calculation and Adjustment of the Langelier Saturation Index for Reverse Osmosis (Withdrawn 2019)

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1.1 This practice covers the calculation and adjustment of the Langelier saturation index for the concentrate stream of a reverse osmosis device. This index is used to determine the need for calcium carbonate scale control in the operation and design of reverse osmosis installations. This practice is applicable for concentrate streams containing up to 10 000 mg/L of total dissolved solids.

1.2 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.


SDO ASTM: ASTM International
Document Number D3739
Publication Date Dec. 10, 1998
Language en - English
Page Count 4
Revision Level 94(1998)
Supercedes
Committee D19.08
Publish Date Document Id Type View
July 1, 2019 D3739-19 Revision
May 1, 2010 D3739-06R10 Revision
Dec. 15, 2006 D3739-06 Revision
Jan. 1, 2005 D3739-05 Revision
June 10, 2003 D3739-94R03 Reaffirmation
Dec. 10, 1998 D3739-94R98 Reaffirmation