ASTM D1199-86(1999)

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
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Designation: D 1199 – 86 (Reapproved 1999)
Standard Specification for
Calcium Carbonate Pigments
This standard is issued under the fixed designation D 1199; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
TABLE 1 Composition of Calcium Carbonate Pigments
1. Scope
Type PC Type GC
1.1 This specification covers two types of high-content
Moisture and other volatile matter, max, % 0.7 0.2
calcium carbonate pigments, as follows:
A
Calcium reported as carbonate, moisture-free, 96.5 .
1.1.1 Type PC—Calcium carbonate precipitate, prepared
min, %
either by complete solution or by carbonation of lime.
Total calcium and magnesium reported as . 94
carbonates, moisture-free, min, %
1.1.2 Type GC—Ground mineral product.
Magnesium as carbonate, max, % . .
1.2 Six grades of pigments, based on particle size (see 3.3)
A
Does not apply to specialty calcium carbonate.
are covered.
2. Referenced Documents
3.3.1 Grade I (Fine Paint Grade)—This grade possesses
substantial amounts of material in the fine sizes, and is in
2.1 ASTM Standards:
general essentially below 15 to 20 μm maximum size. Coarse
C 25 Test Methods for Chemical Analysis of Limestone,
particles retained on the No. 325 (45-μm) sieve shall be less
Quicklime, and Hydrated Lime
than 0.05 %. The maximum Specific Surface Diameter (SSD)
D 280 Test Methods for Hygroscopic Moisture (and Other
shall be 2.5 μm.
Matter Volatile Under the Test Conditions) in Pigments
3.3.2 Grade II (Coarse Paint Grade)—This grade is char-
D 281 Test Method for Oil Absorption of Pigments by
acterized by substantial amounts in the 5- to 45-μm range, and
Spatula Rub-Out
is lower in pigment value than Grade I. Coarse particles
D 718 Test Methods for Analysis of Aluminum Silicate
retained on the No. 325 (45-μm) sieve shall be less than 0.5 %.
Pigment
The maximum SSD shall be 6 μm.
D 1366 Practice for Reporting Particle Size Characteristics
3.3.3 Grade III (Filler Grade)—This grade is characterized
of Pigments
by substantial amounts in the 10- to 45-μm range but with the
D 3360 Test Method for Particle Size Distribution by Hy-
coarse particles retained on No. 325 (45-μm) sieve less than
drometer of the Common White Extender Pigments
25 % and a maximum SSD of 9 μm.
E 97 Test Method for Directional Reflectance Factor, 45-
3.3.4 Grade IV (Putty Powder Grade)—This grade pos-
deg 0-deg, of Opaque Specimens by Broad-Band Filter
sesses less fines, and have substantial amounts of coarse
Reflectometry
particles. The coarse particles, however, shall not exceed 30 %
3. Composition and Properties
retained on the No. 200 (75-μm) sieve. The maximum SSD
shall be 12 μm.
3.1 The pigment may be prepared by chemical precipitation
3.3.5 Grade V (Superfine Grade)—This grade is a super-
or by the fine grinding of natural calcium carbonate containing
minerals. If additional agents are used or any surface treatment fine ground natural limestone and is characterized by major
amounts less than 5 μm and a weight median particle size in the
is given, their purpose shall be indicated; acceptance shall be as
agreed upon by the purchaser and the seller. range of 1 μm. The SSD is finer than 1 μm.
3.3.5.1 Particle size methods for Grade V that are applicable
3.2 Composition—The pigment shall conform to the re-
include transmission electron microscopy, scanning electron
quirements for composition prescribed in Table 1.
microscopy, and the Sedigraph. Specific Surface Diameter can
3.3 Fineness—The pigment shall conform to the following
be determined by BET nitrogen absorption. The method of
general requirements for fineness for the grade specified:
measurement produces different values, therefore, the method
of measurement shall be agreed upon by the purchaser and the
This specification is under the jurisdiction of ASTM Committee D-1 on Paint
seller.
and Related Coatings, Materials, and Applications, and is the direct responsibility of
Subcommittee D01.31 on Pigment Specifications.
Current edition approved June 27, 1986. Published August 1986. Originally
published as D1199 – 52 T. Last previous edition D1199 – 80. The sole source of supply of the sedigraph known to the committee at this time
Annual Book of ASTM Standards, Vol 04.01. is Micromeritics, 5680 Goshen Springs Rd., Norcross, GA 30093. If you are aware
Annual Book of ASTM Standards, Vol 06.03. of alternative suppliers, please provide this information to ASTM Headquarters.
Annual Book of ASTM Standards, Vol 06.01. Your comments will receive careful consideration at a meeting of the responsible
5 1
Discontinued; See 1992
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