GB/T 328.9-2007 PDF English
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Test methods for building sheets for waterproofing -- Part 9: Plastic and rubber sheets for waterproofing-tensile properties
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GB/T 328.9-2007: PDF in English (GBT 328.9-2007) GB/T 328.9-2007
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 91.120.30
Q17
Test methods for building sheets for
waterproofing - Part 9: Plastic and rubber
sheets for waterproofing - Tensile properties
ISSUED ON: MARCH 26, 2007
IMPLEMENTED ON: OCTOBER 01, 2007
Jointly Issued by: General Administration of Quality Supervision,
Inspection and Quarantine (GAQSIQ);
Standardization Administration of the People's
Republic of China (SAC).
Table of Contents
1 Scope ... 6
2 Normative References ... 6
3 Terms and Definitions ... 7
4 Principle ... 7
5 Apparatus ... 7
6 Sampling ... 8
7 Preparation of test specimens ... 8
8 Procedure ... 9
9 Expression of results, evaluation and precision of test method ... 10
10 Test report ... 10
Foreword
"Test Methods for Building Sheets for Waterproofing" (GB/T 328) includes the
following 27 parts:
— Part 1: Bitumen Plastic and Rubber Sheets for Waterproofing - Rules for
Sampling;
— Part 2: Bitumen Sheets for Waterproofing - Visible Defects;
— Part 3: Plastic and Rubber Sheets for Waterproofing - Visible Defects;
— Part 4: Bitumen Sheets for Waterproofing - Thickness and Mass per Unit Area;
— Part 5: Plastic and Rubber Sheets for Waterproofing - Thickness and Mass per
Unit Area;
— Part 6: Bitumen Sheets for Waterproofing - Length, Width and Straightness;
— Part 7: Plastic and Rubber Sheets for Waterproofing - Length, Width,
Straightness and Flatness;
— Part 8: Bitumen Sheets for Waterproofing - Tensile Properties;
— Part 9: Plastic and Rubber Sheets for Waterproofing - Tensile Properties;
— Part 10: Bitumen Plastic and Rubber Sheets for Waterproofing - Watertightness;
— Part 11: Bitumen Sheets for Waterproofing - Flow Resistance at Elevated
Temperature;
— Part 12: Bitumen Sheets for Waterproofing - Dimensional stability;
— Part 13: Plastic and Rubber Sheets for Waterproofing - Dimensional Stability;
— Part 14: Bitumen Sheets for Waterproofing - Flexibility at low temperature;
— Part 15: Plastic and Rubber Sheets for Waterproofing - Foldability at Low
Temperature;
— Part 16: Plastic and Rubber Sheets for Waterproofing - Exposure to Liquid
Chemicals Including Water;
— Part 17: Bitumen Sheets for Waterproofing - Adhesion of Granules;
— Part 18: Bitumen Sheets for Waterproofing - Resistance to Tearing (Nail Shank);
— Part 19: Plastic and Rubber Sheets for Waterproofing - Resistance to Tearing;
— Part 20: Bitumen Sheets for Waterproofing - Resistance to Peeling of Joints;
— Part 21: Plastic and Rubber Sheets for Waterproofing - Resistance to Peeling of
Joints;
— Part 22: Bitumen Sheets for Waterproofing - Resistance to Shearing of Joints;
— Part 23: Plastic and Rubber Sheets for Waterproofing - Resistance to shearing
of Joints;
— Part 24: Bitumen Plastic and Rubber Sheets for Waterproofing - Resistance to
Impact;
— Part 25: Bitumen Plastic and Rubber Sheets for Waterproofing - Resistance to
Static Loading;
— Part 26: Bitumen Sheets for Waterproofing - Dissoluble Composite of
Membrane (Impregnated and Coated Asphalt Amount);
— Part 27: Bitumen Plastic and Rubber Sheets for Waterproofing - Water
Absorption.
This Part is Part 9 of GB/T 328.
This Part is identical to "Flexible sheets for waterproofing. Determination of tensile
properties. Plastic and rubber sheets for roof waterproofing" (EN 12311-2:2000).
Chapter and article numbers of this Part are consistent with those of EN
12311-2:2000.
For convenience of use, the main differences between this Part EN 12311-2:2000 are
as follows:
a) "This European Standard" was changed into "this Part";
b) "EN 1849-2", "EN 13416", "ISO 37", " ISO 7500-1" was changed into "GB/T
328.5", “GB/T 328.1”, “GB/T 528” , “JJG 139” respectively;
c) The foreword of EN 12311-2:2000 was deleted; the foreword of this Part was
re-prepared;
d) "Test Methods for Asphalt Waterproof Roll Roofing" (GB/T 328-1989) is replaced
by "Test Methods for Building Sheets for Waterproofing" (GB/T
328.1~328.27-2007) that is consisted of this Part and other parts.
This Part was proposed by China Building Material Industry Association.
This Part shall be under the jurisdiction of the National Technical Committee on
Test methods for building sheets for waterproofing -
Part 9: Plastic and rubber sheets for waterproofing -
Tensile properties
1 Scope
This part of GB/T 328 specifies test methods for the determination of the tensile
properties of plastic and rubber sheets for roof waterproofing.
Method A (ISO 1421) is applicable to all materials; for materials that are not applicable
to Method A, if there is no break on the material, Method B (GB/T 528) may be used to
determine the tensile property.
2 Normative References
The following normative documents contain provisions which, through reference in
this text, constitute provisions of this Part of GB/T 328. For dated references, then
subsequent amendments revisions of these publications do not apply. However,
parties who enter into an agreement based on this Part are encouraged to investigate
the possibility of applying the most recent editions of the normative documents
indicated below. For undated references, the latest edition of the normative document
referred to applies.
GB/T 328.1 "Test methods for building sheets for waterproofing - Part 1: Bitumen
plastic and rubber sheets for waterproofing rules for sampling"
GB/T 328.5 "Test methods for building sheets for waterproofing - Part 5: Plastic
and rubber sheets for waterproofing-thickness and mass per unit area"
GB/T 528 "Rubber, vulcanized or thermoplastic - Determination of tensile stress -
Strain properties"( GB/T 528-1998 eqv ISO 37:1994)
JJG 139-1999 "Verification Regulation of Universal Tension and Compression
Testing Machine"
ISO 1421 "Rubber-or plastics-coated fabrics - Determination of tensile strength
and elongation at break"
In the case of sheets with composite reinforcements, which give rise to two or more
distinct peaks on the force/elongation curve, the force and elongation of the two
greatest peaks and also the elongation at break shall be recorded.
9 Expression of results, evaluation and precision of test
method
9.1 Evaluation
Determine from the force and distance recorder, or from the data registered, the
maximum force and the corresponding elongation calculated from the separation of
the tensile testing machine grips or gauge marks and expressed as a percentage of
the original gauge length.
Disregard any test result where the test specimen breaks within 10 mm from the grips
or when it slips by more than the permitted limit within the grips of the tensile testing
machine, and retest with a replacement specimen.
The maximum tensile force and corresponding elongation and the elongation at break
are noted, together with the direction of test.
State the method of measurement of elongation i.e. grip separation or extensometer.
List the individual values for the 5 test specimens, in each direction; calculate the
arithmetic mean and standard deviation of tensile force in N/50 mm for method A and
tensile stress in MPa (N/mm2) for method B.
The tensile stress MPa (N/mm2) shall be calculated on the basis of the effective sheet
thickness (see GB/T328.5).
State the result to the nearest N/50 mm for method A, to the nearest 0.1 N/mm2 for
method B and elongation with two significant figures.
9.2 Precision of the test method
No information is available at this time.
10 Test report
The test report shall include at least the following information:
a) a reference to GB/T 328 and any deviation from it;
b) all details necessary to identify the product tested;
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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