GB/T 4303-2023Marine lifejacket (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.

This document replaces GB/T 4303-2008 "Marine Lifejackets". Compared with GB/T 4303-2008, except for structural adjustments and editorial changes, In addition, the main technical changes are as follows:

a) The type of life jacket has been deleted (see 4.2 of the 2008 edition);

b) The material requirements for life jackets have been changed (see 5.1, 5.1 of the 2008 edition);

c) Delete the requirements and test methods for oil resistance (see 5.7 and 6.7 of the 2008 edition);

d) Added requirements for whistles (see 5.4.1);

e) Changed the requirements for recovery time in water performance (see 5.10.1, 5.11.1 of the 2008 edition);

f) Changed the requirements for net height, trunk angle and face plane (head) angle after static balance in water performance (see 5.10.2, 2008 edition of 5.11.2);

g) Changed the requirements for clear height after falling into the water and diving (see 5.10.3, 5.11.3 of the 2008 version);

h) The test method of materials has been changed (see 6.1, 6.1 of the 2008 edition);

i) Changed the requirements for the lightest and heaviest person in the wearing test (see 6.9.1, 6.10.1 of the 2008 version);

j) The requirements for the underwater performance test environment and test personnel have been changed (see 6.10.1, 6.11.1 of the 2008 edition).

1 Scope

This document specifies the classification and marking, requirements, test methods, inspection rules, markings, packaging, Transportation and storage.

This document applies to the design, manufacturing and acceptance of adult life jackets for ships and offshore facilities.

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document.

GB/T 32234.7 Personal buoyancy devices Part 7: Safety requirements and test methods for materials and components

GB/T 32234.8-2015 Personal buoyancy equipment Part 8: Safety requirements and test methods for accessories oflife-savingappliances)

3 Terms and definitions

The following terms and definitions apply to this document.