GB/T 26118.3-2010Safety of machinery -- Assessment and reduction of risks arising from radiation emitted by machinery -- Part 3: Reduction of radiation by attenuation or screening (English PDF)

Foreword

GB/T 26118 Safety of Machinery - Assessment and Reduction of Risks Arising from Radiation

Emitted by Machinery consists of the following three parts:

---Part 1: General Principles;

---Part 2: Radiation Emission Measurement Procedure;

---Part 3: Reduction of Radiation by Attenuation or Screening.

This is Part 3 of GB/T 26118.

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

This Part identically adopts the European Standard EN 12198-3:2002 Safety of Machinery -

Assessment and Reduction of Risks Arising from Radiation Emitted by Machinery - Part 3:

Reduction of Radiation by Attenuation or Screening (English version).

This Part identically translates EN 12198-3:2002. For ease of use, this Part makes the following

editorial modifications:

---"this Part" is used to replace "this European Standard";

---The EN Foreword is deleted, and the Foreword is re-written;

---In accordance with the requirements of GB/T 1.1-2009, the order of expression of the

clauses in the Scope is modified;

---The introduction of Normative References is modified in accordance with GB/T 1.1-

2009, and the standards cited in EN 12198-3:2002 are modified into the corresponding

national standards;

---"(see EN 292-1:1991, Appendix A)" is deleted from Chapter 4;

---"(European Economic Area: -40 °C in North, to +40 °C in South)" is deleted from 6.5;

---Appendix ZA is deleted.

This Part was proposed by and shall be under the jurisdiction of National Technical Committee

208 on Mechanical Safety of Standardization Administration of China (SAC/TC 208).

The drafting organizations of this Part: Rugao Packaging Food Machinery Co., Ltd.; Shenzhen

Center Testing International Group Co., Ltd.; China Machinery Productivity Promotion Center;

Optomechanical and Electrical Engineering Research Institute of Nanjing Forestry University.

1 Scope

The purpose of this Part of GB/T 26118 is to provide means to enable manufacturers of

machinery concerned by a radiation hazard to design and manufacture efficient safeguards

against radiations. Specific technical details of the design of shields for the different types of

radiation and machines will be provided in other standards.

This Part deals with a design strategy for reducing the radiation flux by attenuation or screening.

This Part applies to machinery as defined by GB/T 15706.1.

NOTE GB/T 26118.1 contains the general principles of risk assessment of radiation emission by

machinery. Details of the measurement of the radiation emission are given in GB/T

26118.2.

2 Normative References

The following documents are indispensable to the application of this document. In terms of

references with a specified date, only versions with a specified date are applicable to this

document. In terms of references without a specified date, the latest version (including all the

modifications) is applicable to this document.

GB/T 2900.60-2002 Electrotechnical Terminology - Electromagnetism (IEC 60050(121):1998,

EQV)

GB/T 2900.61-2008 Electrotechnical Terminology - Physics and Chemistry (IEC 60050-

(111):1996, MOD)

GB/T 4365-2003 Electrotechnical Terminology - Electromagnetic Compatibility (IEC

60050(161):1990, IDT)

GB/T 8196-2003 Safety of Machinery – Guards – General Requirements for the Design and

Construction of Fixed and Movable Guards (ISO 14120:2002, MOD)

GB/T 15706.1-2007 Safety of Machinery - Basic Concepts, General Principles for Design -

Part 1: Basic Terminology, Methodology (ISO 12100-1:2003, IDT)

GB/T 15706.2-2007 Safety of Machinery - Basic Concepts, General Principles for Design -

time for the source.