ASTM D1067 PDF

This standard is issued under the fixed designation D ; the number 1 These test methods are under the jurisdiction of ASTM Committee D19 on. Buy ASTM D Standard Test Methods for Acidity or Alkalinity of Water from SAI Global. ASTM: D Acidity or Alkalinity of water by electrometric titration Annual Book of ASTM Standards, Section 11, Water and Environmental Technology.

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Hydrolyzable salts of aluminum and ferric and ferrous iron in mine drainage and certain industrial waste waters, are common causes of acidity.

ASTM D – 16 – Standard Test Methods for Acidity or Alkalinity of Water

No other units of c1067 are included in this standard. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. NOTE 3—An electrometric titration atsm is smooth, with the pH changing progressively in a single direction, if equilibrium is achieved after each incremental addition of titrant, and may contain one or more in?

It is mandatory that analyses by Test Method A be carried out the same day the samples are taken; essentially immediate analysis is desirable for those waste waters containing hydrolyzable salts that contain cations in several oxidation states.

ASTM D1067 – 16

Subsequent hydrolysis of the resultant ferric ion immediately During the subsequent titration, the ferric ion is precipitated as ferric hydroxide: While inflection points rapid changes in pH are usually preferred for accurate analysis of sample composition and obtaining the best precision, the use of an inflection point for process d11067 may result in significant errors in chemical treatment or process control in some applications.

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Acidity determinations on waters containing ferrous iron are further complicated asgm air oxidation of ferrous to the ferric state and subsequent hydrolysis to produce additional acidity. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.

Current edition approved Jan. Hydrogen peroxide H2O2 is added, the solution boiled, and? In this test method, hydrogen peroxide is added prior to boiling to accelerate the chemical reactions needed for equilibrium.

Volatile components contributing to the acidity or alkalinity of the water may be lost during sample pretreatment. Of the three procedures, Test Method A is the most precise and accurate.

When titrating to a selected end point dictated by practical considerations, 1 only a part of the actual neutralizing capacity of d11067 water may be measured, or 2 this capacity may actually be exceeded in arriving at optimum acidity or alkalinity conditions. D — 06 Refer to Appendix X4 for historical information.

The other two methods are used to determine acidity or alkalinity relative to a predesignated aatm point based on the change in color of an internal indicator or the equivalent end point measured by a pH meter. It is used for the development of a titration curve that will define inflection points and indicate buffering capacity, if any.

Unless otherwise indicated, it is intended that all reagents shall conform to the speci? In water analysis, a pH of about 4. In this test method, hydrogen peroxide is added prior to boiling to accelerate the chemical reactions needed for equilibrium. Three test methods are given as follows: When titrating to a selected end point dictated by practical considerations, 1 only a part of the actual neutralizing capacity of the water may be measured, or 2 this capacity may actually be exceeded in arriving at optimum acidity or alkalinity conditions.

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Hold the tip of the pipette near the bottom of the beaker while discharging the sample.

ASTM D – 88 Standard Test Methods for Acidity or Alkalinity of Water

A procedure for the preparation of carbon dioxide-free water is given in Practice E It is particularly applicable to mine drainage, industrial waste waters carrying waste acids, and similar waters. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Dilute to 1 L with water. The other two f1067 are used to determine acidity or alkalinity relative to a predesignated end point based on the change in color of an internal indicator or the equivalent end point measured by a pH meter.

Hold the tip of the pipette near the bottom of the container while discharging the sample. NOTE 8—Hydrochloric acid of similar normality asgm be used instead of sulfuric acid.

This study should be repeated until the recoveries are within the limits given in 15,24, or The other two methods are used to determine acidity or alkalinity relative to a predesignated end point based on the change in color of an internal indicator or the equivalent end point measured by a pH meter.

Only the particular adaptation of the electrometric titration appearing as the Asstm Method is believed to be largely the work of Committee D Type III water was speci?