ASTM C53-63

Specification for Quicklime and Hydrated Lime for Water Treatment (Withdrawn 1981)

General Information

• Status: Withdrawn
• Technical Committee: C07 - Lime and Limestone

Standards Content (Sample)

AMERICAN SOCIETY FOR TESTING AND MATERIALS
1916 Race St., Philadelphia 3, Pa.
Reprinted from Copyrighted 1967 Book of ASTM Standards, Part 9.
Standard Specifications /or
QUICKLIME AND HYDRATED LIME FOR WATER
TREATMENT'
ASTM Designation: C 53 - 63
ADOPI'IID, 1963
This Standard of the American Society for Testing and Materials is issued
under the fu:ed deaignation C 53; the final number indicates the year of orig­
inal adoptiOD as standard or, in the case of revision, the year of last revision.
Scope Chemical Composition
1. These specifications cover lime suit­
3. (~>) The available lime content of
able for all water-treating applications.
type A lime (calculated on the basis of
Two types of lime are covered as follows:
weight of sample taken at place of manu­
facture), shall be at least 90 per cent in
Type A-lime suitable for use in
quicklime and at least 68.1 per cent in
the softening of water for municipal
hydrated lime.
and industrial supplies, and
Type B-lime suitable for silica re­
NOTE 1.-In the softening of water for mu­
moval from boiler feedwater, and for
nicipal and industria.) supplies, lime is used
color removal and clarification of wa­
alone or with coagulant aids to produce a pre­
ter for municipal and industrial sup­
cipitate which assists in the clarification of
plies.
water, removal of bacteria, and removal of
hardness. Lime and soda ash may be used to­
General Requirements
gether for softening water. The lime serves u
2. (G) Either quicklime or hydrated
a chemical reagent in water softening. The only
lime may be furnished, as specified for
useful constituent of the lime is the calcium
oxide content of the quicklime or hydrated lime
both types A and B.
capab
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