ДСТУ ISO 18172-1:2019 Газовые баллоны. Перезаправляемые сварные газовые баллоны с нержавеющей стали. Часть 1. Испытательное давление 6 МПа и ниже (ISO 18172-1:2007, IDT)

ДСТУ ISO 18172-1:2019
(ISO 18172-1:2007, IDT)

Газові балони.
Перезаправні зварні газові балони з нержавкої сталі.
Частина 1. Випробувальний тиск 6 МПа і нижче

 
 
 
     
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

Contents

Foreword

Introduction

1 Scope

2 Normative references

3 Terms, definitions and symbols

3.1 Terms and definitions

3.2 Symbols

4 Materials and heat treatment

4.1 General

4.2 Categories

4.3 Heat treatment

4.4 Test requirements

5 Design

5.1 General requirements

5.2 Calculation of cylindrical shell wall thickness

5.3 Design of convex ends

5.4 Minimum wall thickness

5.5 Ends of other shapes

5.6 Design of openings

6 Construction and workmanship

6.1 General

6.2 Welding procedures

6.3 Cryoforming procedure

6.4 Welded joints of pressure-containing parts

6.5 Non-pressure-containing attachments

6.6 Valve protection

6.7 Neck threads

6.8 Visual examination

7 New design tests

7.1 General requirements

7.2 Verifications and tests

7.3 Descriptions of tests

7.4 Design testing certificate

8 Batch tests

8.1 General

8.2 Information

8.3 Tensile test

8.4 Bend test

8.5 Macroscopic examination of weld cross-sections

8.6 Checks and verifications

9 Tests on every cylinder

9.1 Pressure test

9.2 Hardness test

9.3 Leakage test

10 Failure to meet test requirements

11 Markings

12 Certificate

Annex A (normative) Radiographic examination of welds

Annex B (normative) Description and evaluation of manufacturing defects and conditions for rejection of welded stainless steel gas cylinders at time of visual inspection

Annex C (informative) Examples of design and batch testing certificates

Annex D (normative) Manufacturer's markings for LPG

Bibliography