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GB/T 26833-2011Non-destructive testing instruments - General specification for X-ray tube for industrial detecting (English PDF)

无损检测仪器工业用X射线管通用技术条件

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

July 29, 2011

Implementation date

December 1, 2011

Scope

GB/T 26833-2011 is the English-translated version of 无损检测仪器工业用X射线管通用技术条件.

GB/T 26833-2011 is the Chinese standard "Non-destructive testing instruments - General specification for X-ray tube for industrial detecting".

Its scope clause reads: This standard specifies the technical requirements for industrial X-ray tube (hereinafter referred to as the X-ray tube), and inspection rules, test methods, marking, packaging, Transport, storage and so on.

This standard applies to the following tube voltage 500kV X-ray tube. Its clauses include requirements.

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Document preview — GB/T 26833-2011

National Standard of the People's Republic of China

ICS: 19.100
Classification: N 78

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Introduction
1 Scope
2 Normative references
3 Requirements
3.1 Conditions
3.2 Technical performance
3.3 Stability of
3.4 appearance quality and structure
3.5 effective beam angle
4 Test Method
4.1 Test conditions
4.2 Main test instruments and appliances
4.3 X-ray tube inspection
4.4 current stability test
4.5 X-ray tube continuously test
4.6 filament properties were measured
4.7 X-ray tube voltage test over
4.8 Determination of focal spot size
4.9 Determination of the effective beam angle
4.10 Test cap fixed degree
4.12 Thermal stability test
4.13 4 cathode and anode checking concentricity
4.14 low temperature, high temperature and humidity environmental test
4.15 Mechanical strength test
4.17 Life Test
5 Inspection Rules
5.1 factory inspection
5.2 Type test
5.3 Life Test
5.4 sampling method, the group of samples and determined that Rule
6 signs, packaging, transportation and storage
6.1 mark
6.2 Packaging
6.3 Transportation and storage
Appendix A (normative) Pinhole radiographic
Appendix B (normative) rms measurement focus

1 Scope

This standard specifies the technical requirements for industrial X-ray tube (hereinafter referred to as the X-ray tube), and inspection rules, test methods, marking, packaging,

Transport, storage and so on.

This standard applies to the following tube voltage 500kV X-ray tube.

2 Normative references

The following documents for the application of this document is essential. For dated references. Dated version only suitable for use herein

Member. For undated references, the latest edition (including any amendments) applies to this document.

GB/T 191 Packaging - Pictorial signs

GB/T 2829 periodic inspection Sampling procedures and tables (for testing the stability of the production process)

GB/T 13384 mechanical and electrical products packaging General technical conditions

JB/T 9329 Instrumentation transport, transportation, storage and basic environmental conditions and test methods

3 Requirements

3.1 Conditions of Use

X-ray tube under the following conditions should be working properly.

a) altitude does not exceed 1000m;

b) Ambient temperature -10 °C ~ 40 °C (water-cooled X-ray tube ambient temperature 2 °C ~ 40 °C);

c) air relative humidity less than 85%;

d) power supply voltage is 220 × (1 ± 10%) V.

3.2 Technical Performance

Filament characteristics 3.2.1 X-ray tube. Filament voltage X-ray tube filament current product shall comply with the specific documentation requirements, when the filament current

Standard products specified value ± 10% tolerance for the maximum filament voltage of a predetermined value.

3.2.2

X-ray tube voltage is 0.3 times the rated tube when the tube current of the X-ray tube should be able to reach the rated value.

3.2.3

X-ray tube should over voltage test in Table 1 which provides that no discharge and flicker.

Table 1 overvoltage test

Rated tube voltage kV

Over rated

Tube voltage percentage duration min

Direct forced circulation indirect cooling forced circulation cooling

Anode current

< 200

>=200 and < 300

>=300

80% of the rated current anode tube

GB 22448-2025 | GB/T 36017-2018 | GB/T 36015-2018 | GB/T 26838-2024 | GB/T 26832-2011 | GB/T 26830-2011 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

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