ASTM D280-01

Standard Test Methods for Hygroscopic Moisture (and Other Matter Volatile Under the Test Conditions) in Pigments

SCOPE
1.1 These methods cover procedures for determining hygroscopic moisture (and other matter volatile under the test conditions) in pigments.  
1.2  This standard does not purport to address all of the safety problems 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.

General Information

• Status: Historical
• Publication Date: 09-May-2001
• ICS: 87.060.10 - Pigments and extenders
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.31 - Pigment Specifications

Relations

• Replaces: ASTM D280-81(1995) - Standard Test Methods for Hygroscopic Moisture (and Other Matter Volatile Under the Test Conditions) in Pigments
• Effective Date: 10-May-2001
• Replaced By: ASTM D280-01(2007) - Standard Test Methods for Hygroscopic Moisture (and Other Matter Volatile Under the Test Conditions) in Pigments
• Effective Date: 01-Feb-2007
• Referred By: ASTM D4139-04(2020) - Standard Guide for Determining Volatile and Nonvolatile Content of Pigments
• Effective Date: 10-May-2001
• Referred By: ASTM D763-06(2019) - Standard Specification for Raw and Burnt Umber Pigments
• Effective Date: 10-May-2001
• Referred By: ASTM D1199-86(2020) - Standard Specification for Calcium Carbonate Pigments
• Effective Date: 10-May-2001
• Referred By: ASTM D718-86(2020) - Standard Test Methods for Analysis of Aluminum Silicate Pigment
• Effective Date: 10-May-2001
• Referred By: ASTM D1394-76(2020) - Standard Test Methods for Chemical Analysis of White Titanium Pigments
• Effective Date: 10-May-2001
• Referred By: ASTM D3722-05(2019) - Standard Specification for Natural Red and Brown Iron Oxide Pigments
• Effective Date: 10-May-2001
• Referred By: ASTM D605-82(2019) - Standard Specification for Magnesium Silicate Pigment (Talc)
• Effective Date: 10-May-2001
• Referred By: ASTM D6280-98(2020) - Standard Specification for Zinc Phosphate Pigments
• Effective Date: 10-May-2001
• Referred By: ASTM D4462-02(2019) - Standard Specification for Zinc Hydroxy Phosphite Pigment
• Effective Date: 10-May-2001
• Referred By: ASTM D1208-96(2019) - Standard Test Methods for Common Properties of Certain Pigments
• Effective Date: 10-May-2001
• Referred By: ASTM D607-82(2019) - Standard Specification for Wet Ground Mica Pigments
• Effective Date: 10-May-2001
• Referred By: ASTM D50-90(2023) - Standard Test Methods for Chemical Analysis of Yellow, Orange, Red, and Brown Pigments Containing Iron and Manganese
• Effective Date: 10-May-2001
• Referred By: ASTM D3280-85(2020) - Standard Test Methods for Analysis of White Zinc Pigments
• Effective Date: 10-May-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D280–01
Standard Test Methods for
Hygroscopic Moisture (and Other Matter Volatile Under the
1
Test Conditions) in Pigments
This standard is issued under the fixed designation D 280; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope cool in a desiccator, and weigh. Calculate the total loss in
weight as percent of moisture and other volatile matter.
1.1 These test methods cover procedures for determining
hygroscopic moisture (and other matter volatile under the test
METHOD B—FOR PIGMENTS THAT DECOMPOSE
conditions) in pigments.
AT 110°C
1.2 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Apparatus
responsibility of the user of this standard to establish appro-
4.1 Weighing Bottle, glass, as described in 2.1.
priate safety and health practices and determine the applica-
4.2 Open-Tube Manometer made of glass tubing 6 mm in
bility of regulatory limitations prior to use.
diameter, filled with mercury to approximately 860 mm, fitted
with rubber pressure tubing attached to a T-joint leading to the
METHODA—FOR PIGMENTS THAT DO NOT
desiccator and the pump.Asuitable low-pressure gage may be
DECOMPOSEAT 110°C
used in place of the manometer.
2. Apparatus
NOTE 1—The difference in levels of the mercury in the manometer
2.1 Weighing Bottle, wide-mouth, cylindrical, glass (flat when the system is in operation, subtracted from the barometer reading
taken at the same time, gives the pressure of the system in millimetres of
form, about 30 mm in height and about 70 mm in diameter),
mercury.
provided with a ground-in glass stopper. Or, an aluminum
moisture dish (about 90 mm in diameter and about 50 mm in
4.3 Desiccator, glass, having a hole at the side or in the
depth) with a tightly fitting cover.
cover, constructed with heavy walls to withstand a vacuum of
2.2 Oven in which a temperature of from 110 6 2°C is
one atmosphere. The hole at the side shall be closed with a
maintained.
one-hole rubber stopper carrying a glass tube with a rubber
2.3 Analytical Balance.
tube connection and a pinchcock or with a glass stopcock
ground to fit the tubulature.
3. Procedure
2
4.4 Oil Vacuum Pump, able to achieve and hold a vacuum
3.1 Weigh accurately the glass weighing bottle and stopper
of 3 mm.
or the aluminum moisture dish with cover. Place a specimen of
4.5 Analytical Balance.
from 3 to5gofthe pigment in the clean, dry weighing bottle
5. Procedure
or in the clean, dry aluminum moisture dish. Insert the stopper
(or cover) and weigh to 0.1 mg. Subtract the weight of the
5.1 Weigh accurately the glass weighing bottle and stopper.
vessel from the total weight to obtain the weight of sample
Place a specimen of from 1 to3gofthe pigment in the clean,
used in the test. Remove the stopper (or cover) and place it and
dry weighing bottle, insert the stopper and weigh to 0.1 mg.
the bottle (or dish) containing the specimen in an oven that has
Subtracttheweightofthevesselfromthetotalweighttoobtain
been previously heated to 110 6 2°C, heat for2hata
the weight of sample used in the test.
temperature of 105 to 110°C. Replace the stopper (or cover),
5.2 Remove the stopper and place it and the bottle conta
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