GB/T 39379-2020Thermoplastics piping systems for non-pressure applications—Test method for watertightness (English PDF)

Foreword

This Standard was drafted in accordance with the rules in GB/T 1.1-2009.

This Standard uses the translation method and equivalently adopts ISO 13254:2010

Thermoplastics Piping Systems for Non-pressure Applications - Test Method for

Watertightness.

This Standard makes the following editorial modifications:

---The pressure dimension bar is modified into the legal measurement unit MPa

(megapascal) of our country;

---In order to be consistent with the description of the standard, the indicating arrow

of b in Figure 1 is changed to outward.

Please be noted that certain content of this document might involve patents. The

institution issuing this document does not undertake the responsibility of identifying

these patents.

This Standard was proposed by China National Light Industry Council.

This Standard shall be under the jurisdiction of National Technical Committee 48 on

Plastics Products of Standardization Administration of China (SAC/TC 48).

The drafting organizations of this Standard: Beijing Building Materials Testing Academy

Co., Ltd. (National Supervision and Inspection Center for Water-saving Appliance

Products); Shanghai White Butterfly Pipe Technology Co., Ltd.; Yada Plastic Products

Co., Ltd.; Yonggao Co., Ltd.; Zhejiang Weixing New Building Materials Co., Ltd.;

Hangzhou Unicom Piping Industry Co., Ltd.; Baoding Lida Plastic Industry Co., Ltd.;

Shandong Dongxin Plastic Co., Ltd.; National Test Center of Polymer and Chemical

Building Materials (Material Testing Department); Beijing Technology and Business

University (Light Industry Plastics Processing and Application Research Institute);

Beijing Building Materials Academy of Sciences Research; China Aviation Planning

and Design Institute (Group) Co., Ltd.; Chengde Precision Testing Machine Co., Ltd.

1 Scope

This Standard specifies the test method for watertightness of thermoplastics piping

systems for non-pressure applications.

This Standard is applicable to products and plastic piping system joints made of two

ore more components through secondary processing.

2 Principle

Within the specified time, the secondary processed products or the assembly

composed of pipes and / or pipe fittings are subject to the specified internal hydrostatic

pressure. During the test, check the airtightness of the secondary processed products

or the assembly joints.

NOTE: the following test requirements may be provided by relevant standards:

a) Specimen preparation procedures in 4.1 and Chapter 5;

b) The number of specimens in 4.2.

3 Equipment