ASTM D6356-98(2004)

Standard Test Method for Hydrogen Gas Generation of Aluminum Emulsified Asphalt Used as a Protective Coating for Roofing

SIGNIFICANCE AND USE
This procedure measures the amount of hydrogen gas generation potential of aluminized emulsion roof coating. There is the possibility of water reacting with aluminum pigment to generate hydrogen gas. This situation is to be avoided, so this test was designed to evaluate coating formulations and assess the propensity to gassing.
SCOPE
1.1 This test method covers a hydrogen gas and stability test for aluminum emulsified asphalt coatings.
1.2 The values stated in inch-pound units are to be regarded as the standard. The SI units given in parentheses are for information only.
1.3 This standard does not purport to address all of the safety concerns, if any, 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: 31-Aug-2004
• ICS: 91.100.50 - Binders. Sealing materials
• Technical Committee: D08 - Roofing and Waterproofing
• Drafting Committee: D08.09 - Liquid Applied Coatings for Roofing and Asphaltic Concrete Pavement

Relations

• Replaces: ASTM D6356-98 - Standard Test Method for Hydrogen Gas Generation of Aluminum Emulsified Asphalt Used as a Protective Coating for Roofing
• Effective Date: 01-Sep-2004
• Replaced By: ASTM D6356/D6356M-98(2011)e1 - Standard Test Method for Hydrogen Gas Generation of Aluminum Emulsified Asphalt Used as a Protective Coating for Roofing
• Effective Date: 01-May-2011

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D6356 – 98 (Reapproved 2004)
Standard Test Method for
Hydrogen Gas Generation of Aluminum Emulsified Asphalt
Used as a Protective Coating for Roofing
This standard is issued under the fixed designation D6356; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope pigment to generate hydrogen gas. This situation is to be
avoided, so this test was designed to evaluate coating formu-
1.1 This test method covers a hydrogen gas and stability test
lations and assess the propensity to gassing.
for aluminum emulsified asphalt coatings.
1.2 The values stated in SI units are to be regarded as the
5. Apparatus and Materials
standard. The inch-pound units given in parentheses are for
5.1 The assembly of the hydrogen gas generation test
information only.
apparatus is illustrated in Fig. 1. Details of the component part
1.3 This standard does not purport to address all of the
are as follows:
safety concerns, if any, associated with its use. It is the
5.1.1 Wide Mouth Glass Erlenmeyer Flask, 250-mL capac-
responsibility of the user of this standard to establish appro-
ity.
priate safety and health practices and determine the applica-
5.1.2 Beaker, glass, 250-mL.
bility of regulatory limitations prior to use.
5.1.3 Burette, standard glass 100-mL graduated with glass
2. Referenced Documents stopcock and 0.2 mL divisions.
5.1.4 Condenser, glass jacketed, having the dimensions
2.1 ASTM Standards:
shown in Fig. 2.
D1079 Terminology Relating to Roofing and Waterproofing
5.1.5 Glass Tubing, standard glass 6.35 mm ( ⁄4 in.) inside
D2939 Test Methods for Emulsified Bitumens Used as
diameter 7.94 mm ( ⁄16 in.) outside diameter and 127 mm (5
Protective Coatings
in.) length for forming the J tube.
E1 Specification for ASTM Liquid-in-Glass Thermometers
5.1.6 Tubing, pure latex amber rubber tubing, 6.35 mm ( ⁄4
3. Summary of Test Method
in.).
5.1.7 Neoprene Rubber Stopper, No. 8 with one hole (pre-
3.1 A 200 g sample of water based aluminized coating is
ferred connection for glass condenser to 250-mL Erlenmeyer
heated to 51.7 6 1°C (125 6 2°F) in an Erlenmeyer flask and
flask).
the volume in millilitres of hydrogen gas evolved is measured.
5.1.8 Oil or Water Bath—Constant temperature immersion
Thetestisconductedforoneweek(168h)withareadingtaken
circulating bath capable of temperature control.
every 24 h. The test room is to be maintained at 73.4 6 3.6°F
5.1.9 Oil—Commercially available mineral oil or suitable
in order to standardize gas collection temperature in the burette
heat transfer fluid.
recepticle.
5.1.10 Thermometer—ASTM thermometer having a range
4. Significance and Use
from –2 to + 80°C (30 to 180°F) and conforming to the
requirements for thermometer 15C or 15F as prescribed in
4.1 This procedure measures the amount of hydrogen gas
Specification E1.
generation potential of aluminized emulsion roof coating.
There is the possibility of water reacting with aluminum
6. Sampling
6.1 Sample the material in accordance with Test Methods
This test method is under the jurisdiction ofASTM Committee D08 on Roofing
D2939.
and Waterproofing and is the direct responsibility of Subcommittee D08.09 on
Bituminous Emulsions.
7. Procedure
Current edition approved Sept. 1, 2004. Published September 2004. Originally
approved in 1998. Last previous edition approved in 1998 as D6356 – 98. DOI:
7.1 Weigh 200 g of the sample directly in the 250-mL
10.1520/D6356-98R04.
Erlenmeyer flask ensuring that none coats the neck where the
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
stopper is placed.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
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