ASTM D4068-99
(Specification)Standard Specification for Chlorinated Polyethylene (CPE) Sheeting for Concealed Water-Containment Membrane
Standard Specification for Chlorinated Polyethylene (CPE) Sheeting for Concealed Water-Containment Membrane
SCOPE
1.1 This specification covers flexible chlorinated polyethylene (CPE) sheeting which is used without mastic, bedding, or coating for construction of concealed water-containment membranes in applications where there is potential for costly secondary damage from leakage, and where very long-term reliable performance is essential. Examples are fountains, pools, planters, shower and safe pans, tile tubs, and similar installations where the membrane is inaccessible once construction is complete. Included are requirements for composition, strength and toughness, test methods, workmanship criteria, and methods of marking.
1.2 Manufacturers have the option to use recycled materials in this product. Recycled materials must be in accordance with the requirements in Section 4.
1.3 The test methods used to characterize the sheeting are intended to ensure quality and performance and are not necessarily adequate for design purposes. Test methods have been selected to be conducted primarily with liquids that simulate the environments to which the membrane will be subjected during actual installation and use.
1.4 This specification does not cover water-containment membranes exposed in use to ultraviolet light or direct sunlight.
1.5 The values stated in inch-pound units are to be regarded as the standard. The values in parentheses are given for information only.
Note 1—There is no similar or equivalent ISO standard.
1.6 The following safety hazards caveat pertains only to the test method portion, Section 14, of this specification: 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
Relations
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 4068 – 99 An American National Standard
Standard Specification for
Chlorinated Polyethylene (CPE) Sheeting for Concealed
Water-Containment Membrane
This standard is issued under the fixed designation D 4068; 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.
1. Scope D 374 Test Methods for Thickness of Solid Electrical Insu-
lation
1.1 This specification covers flexible chlorinated polyethyl-
D 412 Test Methods for Rubber Properties in Tension
ene (CPE) sheeting which is used without mastic, bedding, or
D 543 Test Method for Resistance of Plastics to Chemical
coating for construction of concealed water-containment mem-
Reagents
branes in applications where there is potential for costly
D 618 Practice for Conditioning Plastics and Electrical
secondary damage from leakage, and where very long-term
Insulating Materials for Testing
reliable performance is essential. Examples are fountains,
D 751 Test Methods for Coated Fabrics
pools, planters, shower and safe pans, tile tubs, and similar
D 883 Terminology Relating to Plastics
installations where the membrane is inaccessible once con-
D 1004 Test Method for Initial Tear Resistance of Plastic
struction is complete. Included are requirements for composi-
Film and Sheeting
tion, strength and toughness, test methods, workmanship cri-
D 1203 Test Method for Volatile Loss from Plastics Using
teria, and methods of marking.
Activated Carbon
1.2 Recycled materials may be used in this product in
D 1204 Test Method for Linear Dimensional Changes of
accordance with the requirements in Section 4.
Nonrigid Thermoplastic Sheeting or Film at Elevated
1.3 The test methods used to characterize the sheeting are
Temperature
intended to ensure quality and performance and are not
D 1876 Test Method for Peel Resistance of Adhesives
necessarily adequate for design purposes. Test methods have
(T-Peel Test)
been selected to be conducted primarily with liquids that
D 1898 Practice for Sampling of Plastics
simulate the environments to which the membrane will be
D 2136 Test Method for Coated Fabrics—
subjected during actual installation and use.
Low–Temperature Bend Test
1.4 This specification does not cover water-containment
D 2240 Test Method for Rubber Property—Durometer
membranes exposed in use to ultraviolet light or direct sun-
Hardness
light.
D 5033 Guide for The Development of Standards Relating
1.5 The values stated in inch-pound units are to be regarded
to the Proper Use of Recycled Plastics
as the standard. The values in parentheses are given for
E 96 Test Methods for Water Vapor Transmission of Mate-
information only.
rials
NOTE 1—There is no similar or equivalent ISO standard.
2.2 ANSI Document:
1.6 The following safety hazards caveat pertains only to the Safety Code for Safety Glazing Materials for Glazing Motor
test method portion, Section 14, of this specification: This Vehicles Operating on Land Highways
standard does not purport to address all of the safety concerns,
3. Terminology
if any, associated with its use. It is the responsibility of the user
of this standard to establish appropriate safety and health 3.1 Definitions:
3.1.1 General—Definitions are in accordance with Termi-
practices and determine the applicability of regulatory limita-
tions prior to use. nology D 883 unless otherwise indicated.
3.1.2 The abbreviation for chlorinated polyethylene is CPE.
2. Referenced Documents
2.1 ASTM Standards:
Annual Book of ASTM Standards, Vol 10.01.
Annual Book of ASTM Standards, Vol 09.01.
Annual Book of ASTM Standards, Vol 08.01.
Annual Book od ASTM Standards, Vol 09.02.
1 6
This specification is under the jurisdiction of ASTM Committee D-20 on Annual Book of ASTM Standards, Vol 15.06.
Plastics and is the direct responsibility of Subcommittee D20.24 on Plastic Building Annual Book of ASTM Standards, Vol 08.02.
Products. Annual Book of ASTM Standards, Vol 04.06.
Current edition approved September 10, 1999. Published November 1999. Available from American National Standards Institute, 11 W. 42nd St., 13th
e1
Originally published as D 4068 – 81. Last previous edition D 4068 – 96 . Floor, New York, NY 10036.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
D 4068
TABLE 1 Mechanical Properties
3.2 Definitions of Terms Specific to This Standard:
3.2.1 homogeneous sheeting—sheeting that is of homoge- Specification
Property Unit
neous composition throughout its thickness. (Note that it is not
Grade 1 Grade 2
of a sandwich construction with a continuous or semicontinu-
Thickness in. (mm) 0.040 (1.02), 0.030 (0.0765),
ous layer of one or more materials of different composition min min
Tensile strength, psi (MPa) 1200 (8.28), 800 (5.5), min
enclosed between two or more layers of CPE.)
transverse direction min
3.2.2 monolithic sheeting—sheeting manufactured as one
Tensile stress at psi (MPa) 400 (2.76), 300 (2.07),
100 % elongation min min
piece. (Note that it is not several thicknesses laminated
(modulus), transverse 1200 (8.28), 1200 (8.28),
together, nor is it two or more widths lapped and joined with
direction max max
heat or chemicals.)
Elongation, at break, % 350, min 300, min
3.2.3 water containment membrane— a nonporous mem-
transverse direction
brane impervious to water and resistant to permeation by water
Tear resistance, lbf/in. (kN/m) 175 (30.6), min 120 (20.9), min
vapor to an extent that provides a high degree of certainty that
transverse direction of width
secondary damage from leakage shall not occur.
4. Materials and Manufacture
TABLE 2 Performance Requirements
4.1 The sheeting shall be made from a compound that Specification
Property Unit
contains more than 50 % chlorinated polyethylene resin by
Grade 1 Grade 2
weight of total resin content, and the CPE resin shall: (a)
Volatile Loss at 158°F (70°C):
contain 38 to 46 % chlorine; (b) be made from a linear Weight change percent loss 61.5, max 61.5, max
Microorganism Resistance:
polyethylene having a density of not less than 0.95 g/cm ;(c)
Weight change percent 65, max 65, max
be substantially amorphous, having a heat of fusion of less than
Chemical Resistance:
0.4 cal/g (1.7 kJ/kg), and ( d) have a melt viscosity of 1700 6 Sodium Hydroxide:
Weight change percent 65, max 65, max
500 Pa·s when measured in an Instron Capillary Rheometer at
Soapy Water, 1 % solution:
a melt temperature of 190 6 2°C, and a shear rate of 150 6 10
Weight change percent 63, max 63, max
−
s . Distilled Water:
Weight change percent 62, max 62, max
4.2 Recycle materials, as defined in Guide D 5033, may be
used in this product if all the requirements in Sections 3, 4, 5,
6, 7, and 8 are met by the recycle material.
TABLE 3 Bonded Seam Requirements
4.3 The use of water-soluble compounding ingredients shall
Specification
be prohibited.
Property Unit
Grade 1 Grade 2
4.4 The sheeting shall be homogeneous and monolithic.
Bonded seam shear percent of tensile 75, min 75, min
trength, transverse
5. Physical Requirements
direction
5.1 The sheeting shall have an average Shore-A hardness of
Bonded seam peel lbf/in. (kN/m) of 10 (2.75) 6 (1.65)
strength (T-peel) seam width
76 6 6 points when ten specimens taken equidistantly across
the width of the sheet are tested in accordance with Test
Method D 2240, using a Type A durometer and reading
9. Dimensions and Permissible Variations
durometer hardness after5sof presser foot contact with the
specimen. The thickness of the specimens shall be as manu- 9.1 The actual width and length of the sheeting shall be as
factured. agreed upon between the purchaser and the seller.
9.1.1 Sheeting width tolerance shall be +0.5, −0 in. (+12.7,
6. Mechanical Properties
−0 mm).
6.1 The sheeting shall conform to the mechanical property 9.1.2 The length of the sheeting after unrolling and relaxing
requirements in Table 1. for 10 min at 73.4 6 3.6°F (23 6 3°C) shall be no less than that
specified in the purchase order or contract.
7. Performance Requirements
9.2 The sheeting shall be divided by grade based on
7.1 The sheeting shall conform to the performance require-
thickness, as follows:
ments in Table 2. 9.2.1 Grade 1—40 mil (1.02 mm) shall be a minimum of
0.040 in. (1.02 mm) in thickness.
8. Other Requirements
9.2.2 Grade 2—30 mil (0.765 mm) shall be a minimum of
8.1 The sheeting shall be capable of being bonded to itself
0.030 in. (0.765 mm) in thickness.
in a manner suitable for making seams and repairs in the field.
10. Workmanship, Finish, and Appearance
The manufacturer shall recommend or furnish methods, mate-
rials, or equipment necessary and suitable for this purpose. 10.1 The sheeting shall be free of pin holes, particles of
8.2 Bonds between sheets of material used in fabrication of foreign matter, undispersed raw materials, or other manufac-
a water-containment membrane shall conform to the require- turing defects that might affect serviceability.
ments in Table 3 and shall not reduce the overall resistance of 10.2 The sheeting shall be free of blisters, craters, pimples,
the membrane to permeation or leakage. pits, crazing, and thin spots. Sheet edges shall be straight,
D 4068
parallel, and free of trim material. 12.2.2 Changes in compound that are not significant include
10.3 Printing and markings on the sheet shall be legible and substitution of one material for another (except CPE resin)
not easily removed from the sheet during normal handling, where the two are essentially identical (this may involve
transportation, and installation. change in supplier, grade, or type), and changes in materials
10.4 The sheeting shall be colored as agreed upon between which do not remain a part of the sheet after manufacture.
the purchaser and the seller. 12.2.3 Significant changes in manufacture include blending
process (dry blend, wet blend, Banbury mix, or separate
11. Sampling
compounding line) or method of fabricating sheet (calender,
11.1 Sampling for Evaluating Conformance to Physical,
extrusion, or casting).
Mechanical, and Performance Requirements:
12.2.4 Changes in manufacture that are not significant
11.1.1 One roll, or other equivalent packaged unit, with a
include changes in brands of processing equipment, age of
2 2
continuous sheet area of 100 ft (9.3 m ) should be sufficient
equipment, location of manufacture, personnel, take-off equip-
for completing all tests and evaluations in this specification.
ment and processes, packaging, and ambient or atmospheric
11.1.2 Select randomly each roll or unit submitted for
conditions.
evaluation from an inventory of regular production stock not
12.3 Retesting to determine conformance shall occur at least
older than one year. Selecting more than one roll or unit or
every 5 years whether or not significant changes have occurred.
selecting from multiple inventory stocks or locations will
NOTE 3—This requirement is included to monitor cumulative effects of
increase the likelihood of obtaining a representative sample of
relatively insignificant changes in compound or manufacture over time.
contemporary production. The age of stocks from which
12.4 If the results of any test do not conform to the
selections are made should be known and noted.
requirements of this specification, retesting to determine con-
11.1.3 Divide all submitted sheet into smaller samples of
formity may be performed as agreed upon between the
sufficient size to provide a set of specimens for any one of the
purchaser and the supplier. However, this provision shall not be
tests in this specification. In no case shall a sample be less than
2 2
used to lower a minimum requirement, omit, substitute, or
16 ft (1.49 m ), nor shall either width or length be less than 3
modify a test or requirement, or alter specification limits.
ft (0.91 m).
13. Specimen Preparation
NOTE 2—See Practice D 1898 for applicable information on sampling
techniques for plastic sheeting.
13.1 Conditioning:
13.1.1 Condition all physical, mechanical, and performance
11.1.4 From this population, select samples randomly to
test specimens at 73.4 6 3.6°F (23 6 2°C) and 50 6 5%
provide specimens for each test.
relative humidity for not less than 40 h in accordance with
11.2 Sampling for In-Plant Quality Control Evaluation:
Procedure A of Methods D 618 prior to testing or starting
11.2.1 Samples for quality control evaluation shall be a
2 2
environmental and chemical exposures.
minimum of 25 ft (2.5 m ), and completely span the width of
13.1.2 Recondition all environmental and chemical expo-
the finished sheet.
sure samples at 73.4 6 3.6°F (23 6 2°C) and 50 6 5 % relative
11.2.2 Select randomly one or more samples from each
2 2
humidity for not less than 40 h in accordance with Procedure
10 000 ft (1 000 m ) for the quality assurance tests specified
A of Methods D 618 following removal from exposure and
in Section 19 and Table 4.
prior to physical or mechanical property testing.
12. Number of Tests and Retests
13.1.3 Condition in-plant quality assurance specimens at
12.1 One set of test units is sufficient to determine conform-
73.4 6 3.6°F (23 6 2°C) for2hinair prior to testing.
ance. The average result of all samples tested shall conform to
13.2 Bonded Seam Samples:
the requirements of this specification.
13.2.1 Samples from which specimens are taken for testing
12.2 Retesting to determine conformance shall be required
may be prepared from submitted sheet samples, methods, and
after any significant change in compound or method of
materials recommended and supplied by the manufacturer. In
manufacture.
other cases, bonded seam samples from which test specimens
12.2.1 Significant changes in compound include addition,
are to be selected may be prepared entirely by the manufac-
elimination, or substitution of any ingredient, changes in ratios
turer.
between ingredients, change in type or grade of CPE resin,
13.2.2 Finished bonded seam samples from which test
change in supplier or manufacturer, or both, of CPE resin, and
specimens are to be cut shall be conditioned at 73.4 6 3.6°F
change in manufacturer or supplier, or both, of CPE compound
(23 6 2°C) and 50 6 5 % relative humidity for no less than 40
or sheet. h after being made and prior to cutting test specimens.
13.2.3 After cutting, prepared specimens shall be condi-
TABLE 4 Quality Assurance Requirements
tioned at 73.4 6 3.6°F (23 6 2°C) and 50 6 5 % relative
Specification
humidity for not less than 168 h, in accordance with Procedure
Property Unit
Grade 1 Grade 2
A of Methods D 618 prior to testing or st
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.