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GB/T 19802-2005 English PDF (GBT19802-2005)
GB/T 19802-2005 English PDF (GBT19802-2005)
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GB/T 19802-2005: Non-destructive testing -- Industrial radiographic illuminators -- Minimum requirements
GB/T 19802-2005
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 19.100
J 04
GB/T 19802-2005/ISO 5580.1985
Non-destructive testing - Industrial radiographic
illuminators - Minimum requirements
(ISO 5580.1985, IDT)
ISSUED ON. JUNE 8, 2005
IMPLEMENTED ON. DECEMBER 1, 2005
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the PRC;
Standardization Administration of the PRC.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Characteristics of radiographic illuminators ... 4
3 Determination of certain characteristics ... 6
4 Marking ... 8
5 Recommendations for use ... 8
Foreword
This Standard is identical to ISO 5580.1985 “Non-destructive testing - Industrial
radiographic illuminators - Minimum requirements” (English version).
This Standard is identical to ISO 5580.1985 by translation.
For ease of use, this Standard makes the following editorial changes.
a) The word “this International Standard” is replaced by the word “this
Standard”;
b) USE the decimal point “.” instead of the comma as a decimal point “,”;
c) DELETE the foreword of the international standard;
d) ADD the number of the table according to the provisions of GB/T 1.1-2000.
This Standard was proposed by China Machinery Industry Federation.
This Standard shall be under the jurisdiction of National Technical Committee
56 on Non-destructive Testing of Standardization Administration of China
(SAC/TC 56).
Drafting organization of this Standard. Shanghai Research Institute of Materials.
Main drafters of this Standard. Jin Yufei, Mi Zhongyu, Zhou Jiujiu.
Non-destructive testing - Industrial radiographic
illuminators - Minimum requirements
1 Scope
This Standard specifies the minimum requirements for industrial illuminators
used for viewing radiographs.
The function of the illuminator is to allow the viewing of radiographs.
The illuminator shall guarantee the same safety of personnel as an electric
apparatus with maximum voltage, insulation and earthing which is required by
corresponding safety standards of electrotechnics in China.
2 Characteristics of radiographic illuminators
2.1 Mechanical construction
An illuminator consists of the housing with one of the sides being the viewing
screen illuminated from the inside. This screen can itself be the diffusing screen.
This housing may also contain a system for thermal protection of the
radiographs; this system may or may not be ventilated.
For the viewing of wet radiographs, the illuminator shall be so designed as to
prevent penetration of the liquid if the radiograph comes into contact with the
screen.
2.2 Viewing screen
The screens shall be easy to clean and shall be made of a material which is
resistant to scratching during cleaning processes recommended by the
manufacturer and during film viewing.
Note. The screen may be a combination of elements. All of which should be resistant to
heat in terms of deformation and discoloration.
The size of the screens shall allow the viewing of a radiograph without
excessive glare reaching the eyes of the operator. Should the illuminator be
used for viewing radiographs of different sizes, a system of covering masks
shall be provided.
Get QUOTATION in 1-minute: Click GB/T 19802-2005
Historical versions: GB/T 19802-2005
Preview True-PDF (Reload/Scroll if blank)
GB/T 19802-2005: Non-destructive testing -- Industrial radiographic illuminators -- Minimum requirements
GB/T 19802-2005
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 19.100
J 04
GB/T 19802-2005/ISO 5580.1985
Non-destructive testing - Industrial radiographic
illuminators - Minimum requirements
(ISO 5580.1985, IDT)
ISSUED ON. JUNE 8, 2005
IMPLEMENTED ON. DECEMBER 1, 2005
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the PRC;
Standardization Administration of the PRC.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Characteristics of radiographic illuminators ... 4
3 Determination of certain characteristics ... 6
4 Marking ... 8
5 Recommendations for use ... 8
Foreword
This Standard is identical to ISO 5580.1985 “Non-destructive testing - Industrial
radiographic illuminators - Minimum requirements” (English version).
This Standard is identical to ISO 5580.1985 by translation.
For ease of use, this Standard makes the following editorial changes.
a) The word “this International Standard” is replaced by the word “this
Standard”;
b) USE the decimal point “.” instead of the comma as a decimal point “,”;
c) DELETE the foreword of the international standard;
d) ADD the number of the table according to the provisions of GB/T 1.1-2000.
This Standard was proposed by China Machinery Industry Federation.
This Standard shall be under the jurisdiction of National Technical Committee
56 on Non-destructive Testing of Standardization Administration of China
(SAC/TC 56).
Drafting organization of this Standard. Shanghai Research Institute of Materials.
Main drafters of this Standard. Jin Yufei, Mi Zhongyu, Zhou Jiujiu.
Non-destructive testing - Industrial radiographic
illuminators - Minimum requirements
1 Scope
This Standard specifies the minimum requirements for industrial illuminators
used for viewing radiographs.
The function of the illuminator is to allow the viewing of radiographs.
The illuminator shall guarantee the same safety of personnel as an electric
apparatus with maximum voltage, insulation and earthing which is required by
corresponding safety standards of electrotechnics in China.
2 Characteristics of radiographic illuminators
2.1 Mechanical construction
An illuminator consists of the housing with one of the sides being the viewing
screen illuminated from the inside. This screen can itself be the diffusing screen.
This housing may also contain a system for thermal protection of the
radiographs; this system may or may not be ventilated.
For the viewing of wet radiographs, the illuminator shall be so designed as to
prevent penetration of the liquid if the radiograph comes into contact with the
screen.
2.2 Viewing screen
The screens shall be easy to clean and shall be made of a material which is
resistant to scratching during cleaning processes recommended by the
manufacturer and during film viewing.
Note. The screen may be a combination of elements. All of which should be resistant to
heat in terms of deformation and discoloration.
The size of the screens shall allow the viewing of a radiograph without
excessive glare reaching the eyes of the operator. Should the illuminator be
used for viewing radiographs of different sizes, a system of covering masks
shall be provided.
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