GB/T 328.13-2007Test methods for building sheets for waterproofing -- Part 13: Plastic and rubber sheets for waterproofing-dimensional stability (English PDF)

Foreword

GB/T 328 "Test Methods for Building Sheets for Waterproofing" is divided into 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 13 of GB/T 328.

This Part is identical to EN 1107-2.2001 "Flexible Sheets for Waterproofing -

Determination of Dimensional Stability - Part 2. Plastic and Rubber Sheets for Roof

Waterproofing" (English edition).

Chapter and article numbers of this Part is consistent with those of EN 1107-2.2001.

In order to make it convenient for use, this Part makes the following editing

modification.

a) "This European Standard" is changed into "this Part";

b) "EN 13416" is changed into "GB/T 328.1";

c) "Plastic and rubber sheets for roof waterproofing" is changed into "Plastic and

rubber sheets for waterproofing";

d) The foreword of EN 1107-2.2001 is deleted; the foreword of this Part is

re-compiled.

"Test Methods for Bitumen Sheets for Waterproofing" (GB/T 328-1989) is replaced by

"Test Methods for Building Sheets for Waterproof" (GB/T 328.1 ~ 328.27-2007) that is

composed by this Part and other parts.

Test Methods for Building Sheets for

Waterproofing - Part 13. Plastic and Rubber

Sheets for Waterproofing - Dimensional Stability

1 Scope

This Part of GB/T 328 specifies a method for the determination of dimensional

variation after heating of plastic and rubber sheets for roof waterproofing.

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

3 Definition

For the purpose of this Part, the following definition applies.

4 Principle

The principle of the test is measurement of the initial longitudinal and transversal

dimensions of the test specimen. Heating of the test specimen for a specified time at a

specified temperature. Measurement of the resulting longitudinal and transversal

dimensions of the test specimens after reconditioning and calculation of the

dimensional variations.

5 Apparatus

The testing equipment consists of parts indicated in 5.1 and 5.2.

6 Sampling

Test samples shall be sampled in accordance with GB/T 328.1.

7 Preparation of Test Specimens

Take at least three square test specimens of approximately 250 mm × 250 mm,

evenly distributed across the width of the sheet, the outer ones (100 ± 10) mm from

the edges.

Note. Larger test specimens may be required when the surface profile makes this necessary.

Apply in the middle of the test specimens permanent markings in the longitudinal and

transversal direction as indicated in Figure 1.

Any method of marking shall allow accuracy of measurement with the chosen

measurement device to at least 0.1 mm as prescribed in 5.2.

Condition the test specimens, prior to testing, for at least 20 h in a standard

atmosphere of (23 ± 2) °C and (50 ± 5) % relative humidity.

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