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GB/T 5170.16-2018Inspection methods for environmental testing equipments—Part 16: Centrifugal machines for constant acceleration test (English PDF)

环境试验设备检验方法 第16部分:稳态加速度试验用离心机

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

December 28, 2018

Implementation date

July 1, 2019

Scope

GB/T 5170.16-2018 is the English-translated version of 环境试验设备检验方法 第16部分:稳态加速度试验用离心机.

GB/T 5170.16-2018 is Part 16 of the Chinese series of inspection methods for environmental testing equipment, and deals with the centrifuges used for the steady-state (constant) acceleration test of GB/T 2423.15.

It specifies the characteristics the centrifuge must meet, the measuring instruments, measurement uncertainty, test load, test conditions, test methods, test results and inspection cycle, and can also be applied to similar test equipment.

It defines steady-state acceleration, installation calculation radius, tangential acceleration and the ratio of tangential to steady-state acceleration, and requires the installation calculation radius to stay within ±1 % of the specified value.

The standard also gives the formulas for setting acceleration and spindle speed, a test method for the steady-state acceleration indication and an informative annex on measurement uncertainty.

It replaces GB/T 5170.16-2005, was issued on 28 December 2018 and has applied since 1 July 2019.

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Document preview — GB/T 5170.16-2018

National Standard of the People's Republic of China

ICS
19.040
Classification
K 04
Replacing
GB/T 5170.16-2005

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

Contents

  • Foreword
  • 1 Scope
  • 2 Normative references
  • 3 Terms and Definitions
  • 4 Feature requirements
  • 5 measuring instruments
  • 6 Measurement uncertainty
  • 7 Test conditions
  • 8 General Provisions
  • 9 Test Method
  • 10 test results
  • 11 inspection cycle
  • Appendix A (informative) Description of measurement uncertainty in inspection

Foreword

GB/T 5170 contains the following sections.

--- GB/T 5170.1-2016 Electrical and electronic products - Test methods for environmental testing equipment - Part 1: General

--- GB/T 5170.2-2017 Environmental testing equipment testing methods - Part 2: Temperature testing equipment;

GB/T 5170.5-2016 - Test methods for environmental testing equipment - Part 5: Damp heat test equipment;

--- GB/T 5170.8-2017 Test methods for environmental testing equipment - Part 8: Salt spray test equipment;

--- GB/T 5170.9-2017 Environmental testing equipment - Test methods - Part 9: Solar radiation test equipment;

--- GB/T 5170.10-2017 Environmental testing equipment - Test methods - Part 10: High and low temperature low pressure test equipment;

--- GB/T 5170.11-2017 Environmental testing equipment - Test methods - Part 11: Corrosion gas test equipment;

GB/T 5170.13-2018 - Test methods for environmental testing equipment - Part 13: Mechanical vibrations for vibration (sinusoidal) test system;

---GB/T 5170.14-2009 Environmental test equipment basic parameters test method Vibration (sinusoidal) test electric vibration table;

GB/T 5170.15-2018 - Test methods for environmental testing equipment - Part 15: Hydraulic vibrations for vibration (sinusoidal) test system;

---GB/T 5170.17-2005 Electrical and electronic products environmental testing equipment basic parameters verification method low temperature/low pressure/damp heat Integrated sequential test equipment;

---GB/T 5170.18-2005 Electrical and electronic products environmental testing equipment basic parameters verification method temperature/humidity combination cycle Test equipment

GB/T 5170.19-2018 Test methods for environmental testing equipment - Part 19: Temperature, vibration (sinusoidal) comprehensive test device;

---GB/T 5170.20-2005 Electrical and electronic products environmental testing equipment basic parameters verification method water test equipment;

---GB/T 5170.21-2008 Electrical and electronic products environmental testing equipment basic parameters test method vibration (random) test Hydraulic shaker.

This part is the 16th part of GB/T 5170.

This part is drafted in accordance with the rules given in GB/T 1.1-2009.

This part replaces GB/T 5170.16-2005 "Electrical and electronic products environmental testing equipment inspection method steady state acceleration test centrifugal Machine, compared with GB/T 5170.16-2005, the main technical changes are as follows.

--- For ease of use, repeat some of the terms and definitions in GB/T 5170.1 (see 3.2);

--- Deleted the original Chapter 4 "Verification Project" and changed to "Feature Requirements" (see Chapter 4);

--- The GB/T 2423.15 "test equipment" does not stipulate the relevant requirements of the inspection items from this part, and delete the relevant Measuring instrument requirements;

--- Added the chapter "Measurement Uncertainty" (see Chapter 6);

--- For ease of use, the environmental conditions at the time of the specific test are listed (see 7.1);

--- gives the formula and approximate formula for acceleration and spindle speed setting (see Chapter 8);

--- Increased the "steady-state acceleration indication" test method (see Chapter 9);

--- Removed the test method of "tangential acceleration instantaneous value" and "radiation noise";

--- According to the requirements of GB/T 5170.1, the "inspection report should include at least the following information" (see Chapter 10);

--- Removed the original Appendix A, Appendix B;

--- Added Appendix A "Description of Measurement Uncertainty in Inspection".

1 Scope

This part of GB/T 5170 specifies the characteristics of the centrifuge for steady-state acceleration test (hereinafter referred to as the centrifuge), measuring instruments, Measurement uncertainty, test load, test conditions, test methods, test results, inspection cycle.

This part is applicable to the test method of the basic parameters of the centrifuge for GB/T 2423.15 steady-state acceleration test. This section also applies to inspections of similar test equipment.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 5170.1-2016 - Test methods for environmental testing equipment - Part 1. General

JJF1059.1-2012 Measurement uncertainty evaluation and representation

3 Terms and definitions

The following terms and definitions as defined in GB/T 5170.1-2016 apply to this document. For ease of use, the following is repeated Certain terms and definitions in GB/T 5170.1-2016.

3.1 Steady state acceleration

When the centrifuge rotates steadily, it acts on the centripetal acceleration of the load on the mounting table (or arm).

3.2 Installation calculation radius

The test load center position of the centrifuge table (or boom) is set to the center of rotation. [GB/T 5170.1-2016, definition 3.3.18]

3.3 Tangential acceleration

The rate of change of velocity in the tangential direction when the load on the centrifuge table (or arm) is swiveled at a certain radius.

3.4 Tangential acceleration ratio

The ratio of the tangential acceleration of the load center to the steady state acceleration on the centrifuge table (or arm).

4 Characteristic requirements

4.1 Installation calculation radius

The calculated radius of the centrifuge installation should not exceed ±1% of the specified value.

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

Referenced standards

Similar standards

Editions of GB/T 5170.16

EditionTitleRevisionStatus
GB/T 5170.16-2018Inspection methods for environmental testing equipments—Part 16: Centrifugal machines for constant acceleration testcurrent editionCurrent
GB/T 5170.16-2005Inspection methods for environmental testing equipments—Part 16: Centrifugal machines for constant acceleration testprevious editionSuperseded

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