Logo

ASTM D1291-06

Historical Revision

Standard Practice for Estimation of Chlorine Demand of Water

$73.00

$73.00

$131.40


Sub Total (1 Item(s))

$ 0.00

Estimated Shipping

$ 0.00

Total (Pre-Tax)

$ 0.00


...

1.1 This practice provides a means of estimating the quantity of chlorine required to be added to a unit volume of water to accomplish a predetermined treatment objective or to completely react with all chlorine reactable substances in the water, or both.

1.2 Temperature, pH, and initial chlorine dosage are all variables in estimating the optimum chlorination practice. The effects of these variables can be evaluated using this practice.

1.3 Chlorine residual is determined using Test Method D 1253.

1.4 This practice is applicable to all types of water in which the stated treatment objective can be evaluated or residual chlorine can be measured, or both.

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. For a specific hazard statement, see Note 1.


Chlorine is added to potable water, waste water, and industrial water for a variety of purposes. Some of these purposes are:

5.1.1 To eliminate or reduce the growth of microorganisms in water,

5.1.2 To destroy or modify decomposable organic substances so as to reduce the biochemical oxygen demand of the water,

5.1.3 To eliminate or reduce taste, odors, and color in the water,

5.1.4 To separate grease in waste water by eliminating the protective colloidal effect of proteins present, and

5.1.5 To destroy or modify substances in the waste water that react directly by oxidation, such as ammonia, cyanates, cyanides, ferrous iron, nitrites, phenol, phosphorus, sulfides, sulfites, thiocyanates, and other oxidizable constituents.

It is important to avoid over-chlorination in order to minimize chemical consumption, meet restrictions specified by regulatory agencies, and minimize equipment degradation.

SDO ASTM: ASTM International
Document Number D1291
Publication Date Sept. 1, 2006
Language en - English
Page Count 4
Revision Level 06
Supercedes
Committee D19.03
Publish Date Document Id Type View
Feb. 1, 2017 D1291-17 Revision
Feb. 15, 2016 D1291-16 Revision
Sept. 1, 2006 D1291-06 Revision
June 10, 2001 D1291-89R94E01 Revision
June 10, 2001 D1291-01 Revision
Nov. 1, 2023 D1291-17R23 Reaffirmation
May 1, 2011 D1291-06R11 Reaffirmation