ASTM D1465-04

Standard Test Method for Blocking and Picking Points of Petroleum Wax

SIGNIFICANCE AND USE
Blocking of waxed paper, because of the relatively low temperatures at which it may occur, can be a major problem to the paper-coating industry. For example, when the waxed surfaces in a roll of waxed paper stick together, upon separation the surface films are marred and the glossy finish is destroyed. The wax picking point and the wax blocking point indicate an approximate temperature range at or above which waxed surfaces in contact with each other are likely to cause surface film injury.
SCOPE
1.1 This test method covers the determination of the blocking point and picking point of petroleum wax.  
1.2  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-Oct-2004
• ICS: 75.140 - Waxes, bituminous materials and other petroleum products
• Technical Committee: D02 - Petroleum Products, Liquid Fuels, and Lubricants
• Drafting Committee: D02.10.0A - Physical/Chemical Properties

Relations

• Replaces: ASTM D1465-90(2000) - Standard Test Method for Blocking and Picking Points of Petroleum Wax
• Effective Date: 01-Nov-2004
• Replaced By: ASTM D1465-10 - Standard Test Method for Blocking and Picking Points of Petroleum Wax
• Effective Date: 01-May-2010
• Referred By: ASTM D2534-88(2017) - Standard Test Method for Coefficient of Kinetic Friction for Wax Coatings
• Effective Date: 01-Nov-2004

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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.
Technical Association of Pulp and Paper Industry
Designation:D1465–04 Suggested Method T 652
Standard Test Method for
1
Blocking and Picking Points of Petroleum Wax
This standard is issued under the fixed designation D1465; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* other end to impose a measured temperature gradient along its
length.After a conditioning period on the plate, the specimens
1.1 This test method covers the determination of the block-
areremoved,unfolded,andexamined.Thepointsofinitialfilm
ing point and picking point of petroleum wax.
disruption (picking point) and where 50% of the specimen
1.2 This standard does not purport to address all of the
width is disrupted (50% blocking point) are noted. The
safety concerns, if any, associated with its use. It is the
temperatures of corresponding points on the blocking plate are
responsibility of the user of this standard to establish appro-
reported as the picking point and blocking point or blocking
priate safety and health practices and determine the applica-
range.
bility of regulatory limitations prior to use.
5. Significance and Use
2. Referenced Documents
2 5.1 Blocking of waxed paper, because of the relatively low
2.1 ASTM Standards:
temperatures at which it may occur, can be a major problem to
D87 Test Method for Melting Point of Petroleum Wax
the paper-coating industry. For example, when the waxed
(Cooling Curve)
surfaces in a roll of waxed paper stick together, upon separa-
D938 Test Method for Congealing Point of Petroleum
tion the surface films are marred and the glossy finish is
Waxes, Including Petrolatum
destroyed. The wax picking point and the wax blocking point
D2423 Test Method for Surface Wax on Waxed Paper or
indicate an approximate temperature range at or above which
Paperboard
waxed surfaces in contact with each other are likely to cause
E1 Specification for ASTM Liquid-in-Glass Thermometers
surface film injury.
3. Terminology
6. Apparatus
3.1 Definitions:
6.1 Wax Coating Device—Any manual- or machine-driven
3.1.1 wax blocking point—the lowest temperature at which
waxer that gives uniform coatings of the desired weights to a
film disruption occurs across 50% of the waxed paper surface
strip of paper not less than 51 mm (2 in.) wide.
when the test strips are separated.
6.2 Trimming Board,orotherdeviceforcuttingpaperstrips.
3.1.2 wax picking point—the temperature at which the first
6.3 Paper Scales, sensitive to 0.002 g, or suitable balance
film disruption occurs on the waxed paper when test strips are
for measuring basis weights of unwaxed and waxed paper.
separated.
6.4 Blocking PlateAssembly,consistingofametalplate305
1
4. Summary of Test Method mm (12 in.) wide, 13 to 51 mm ( ⁄2 to 2 in.) thick, and 559 to
914 mm (22 to 36 in.) long. It is heated at one end and cooled
4.1 Paper test specimens are coated with the wax sample,
at the other end to provide a 457 to 762-mm (18 to 30-in.) test
folded with the waxed surfaces together, and placed on a
section having an average temperature gradient of 0.8 to 2.2°C
blocking plate.The plate is heated at one end and cooled at the
(1.5 to 4.0°F)/in. The temperature gradient across the width of
the plate from the longitudinal axis to 25 mm (1 in.) from the
1
This test method is under the jurisdiction of ASTM Committee D02 on
edge must not exceed 0.3°C (0.5°F). The temperature at any
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
point should not vary more than 0.3°C (0.5°F). Details of two
D02.10 on Properties of Petroleum Wax. This test method was prepared jointly by
acceptable blocking plates are given in Fig. 1 and Fig. 2.
the TechnicalAssociation of the Pulp and Paper Industry and theAmerican Society
1
for Testing and Materials.
6.4.1 Eight Foam Rubber Strips,25to38mm(1to1 ⁄2 in.)
Current edition approved Nov. 1, 2004. Published November 2004. Originally
1 1
wide by 6 to 13 mm ( ⁄4 to ⁄2 in.) thick, extending the length
approved in 1957. Last previous edition approved in 2000 as D1465–90(2000).
of the test section on the blocking plate.
DOI: 10.1520/D1465-04.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 6.4.2 Eight Sets of Steel Weights, 25 by 25 mm (1 by 1 in.)
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
in cross section made from stock having a density range from
Standards volume information, refer to the standard’s Document Summary page on
3 3
7800 to 8000 kg/m (0.28 to 0.29 lb/in ).The weights may be
the ASTM website.
*A Summary of Changes section appears at the end of this stand
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