GB/T 5097-2005

📋 Scope / 适用范围 ai_extracted

This standard specifies the control of observation conditions in magnetic particle and penetrant testing. It includes the minimum requirements for illuminance and UV-A irradiance, as well as their measurement methods, and is applicable to situations where visual observation is the primary means of inspection.

📝 Foreword / 前言 ai_extracted

This standard is identical to ISO 3059:2001 "Non-destructive testing — Penetrant testing and magnetic particle testing — Viewing conditions" (English version). This standard is an identical translation of ISO 3059:2001a. This standard has editorial differences from ISO 3059:2001 in the normative references, as explained below: — In accordance with the equivalent corresponding international and European standards given in Annex ZZ of ISO 3059:2001, the European standards in the references have been replaced with their equivalent international standards, i.e., EN 473 has been changed to ISO 9712:1999. For ease of use, the following editorial modifications have also been made in this part: a) The terms "this International Standard" and "this European Standard" have been replaced with "this standard"; b) The decimal point "." has been used instead of the comma "," used as a decimal separator; c) The foreword of the international standard has been deleted; d) The introductory wording specified in GB/T 1.1 has been used to replace the introductory wording of the international standard; This standard replaces GB/T 5097-1985 "Indirect assessment methods for black light sources". e) The informative Annex ZZ "Equivalent corresponding international and European standards not given in the text" of the international standard has been deleted. Compared with GB/T 5097-1985, the main changes in this standard are as follows: — The scope has been added (see Clause 1); — Normative references have been added (see Clause 2); — Safety precautions have been modified (1985 edition, Clause 6; this edition, Clause 3); — Color contrast technique has been added (see Clause 4); — Fluorescent technique has been modified (1985 edition, Clauses 1, 2, 3, 4, 5 and Annexes A, B, C; this edition, Clause 5); — Vision has been added (see Clause 6); — Verification has been added (see Clause 7). Please note that some content of this standard may involve patents. The issuing authority of this standard shall not be held responsible for identifying these patents. This standard was proposed by the China Machinery Industry Federation. This standard is under the jurisdiction of the National Standardization Technical Committee for Non-destructive Testing (SAC/TC 56). This standard was drafted by Shanghai Airlines Co., Ltd. The main drafter of this standard is Li Guangjie. The previous editions of the standard replaced by this standard are as follows: — GB/T 5097-1985. GB/T 5097-2005/ISO 3059:2001 Introduction When viewing indications, both penetrant testing and magnetic particle testing require control of relevant environmental conditions, for example: — In color contrast technique, sufficient white light illumination to obtain reliable test results. — In fluorescent systems, sufficient UV-A irradiance with minimal white light illumination. GB/T 5097-2005/ISO 3059:2001 Non-destructive testing — Penetrant testing and magnetic particle testing — Viewing conditions

📚 References & Relations / 引用与关联

🔗 Related Standards / 同类标准