ASTM C206-84(1997) - 10.11.1997
 
1. Scope

1.1 This specification covers two types of finishing hydrated lime that are suitable for use in the scratch, brown, and finish coats of plaster, for stucco, for mortar, and as an addition to portland-cement concrete. The two types of lime sold under this specification shall be designated as follows:

1.1.1 Type N- Normal hydrated lime for finishing purposes, and

1.1.2 Type S- Special hydrated lime for finishing purposes.

Note-Type N, normal finishing hydrated lime, is differentiated from Type S, special finishing hydrated lime, in that no limitation on the amount of unhydrated oxides is specified for Type N hydrate, and the plasticity requirement for Type N hydrate shall be determined after soaking for 16 to 24 h.
 
2. Referenced Documents

C25-24

Standard Test Methods for Chemical Analysis of Limestone, Quicklime, and Hydrated Lime

C50-00

Standard Practice for Sampling, Sample Preparation, Packaging, and Marking of Lime and Limestone Products

C1489-15(2022)

Standard Specification for Lime Putty for Structural Purposes

C1301-22

Standard Test Method for Major and Trace Elements in Limestone and Lime by Inductively Coupled Plasma-Atomic Emission Spectroscopy (ICP) and Atomic Absorption (AA)

C1271-99(2020)

Standard Test Method for X-ray Spectrometric Analysis of Lime and Limestone

C842-05(2025)

Standard Specification for Application of Interior Gypsum Plaster

C110-24

Standard Test Methods for Physical Testing of Quicklime, Hydrated Lime, and Limestone

C51-26

Standard Terminology Relating to Lime and Limestone (as Used by the Industry)