GB/T 12085.23-2022Optics and photonics - Environmental test methods - Part 23: Low pressure combined with cold, ambient temperature and dry or damp heat (English PDF)

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"

drafted.

This document is part 23 of GB/T 12085 "Environmental test methods for optics and photonics". GB/T 12085 has been released to

the next part.

--- Part 1.Terminology, test scope;

--- Part 2.Low temperature, high temperature, damp heat;

--- Part 3.Mechanical forces;

--- Part 4.Salt spray;

--- Part 6.Sand and dust;

--- Part 7.Dripping water and rain;

--- Part 8.High internal pressure, low internal pressure, immersion;

--- Part 9.Solar radiation and weathering;

--- Part 11.Mildew;

--- Part 12.Pollution;

--- Part 14.Dew, frost, ice;

--- Part 17.Comprehensive test of pollution and solar radiation;

--- Part 20.Moist air containing sulfur dioxide and hydrogen sulfide;

--- Part 22.Comprehensive test of low temperature, high temperature or temperature change and impact or random vibration;

--- Part 23.Comprehensive test of low pressure and low temperature, atmospheric temperature, high temperature or damp heat.

This document replaces GB/T 12085.5-2010 "Environmental test methods for optics and optical instruments - Part 5.Low temperature and low pressure comprehensive

"Comprehensive Test", GB/T 12085.18-2011 "Environmental Test Methods for Optical and Optical Instruments - Part 18.Damp heat, low internal pressure comprehensive test

Test" and GB/T 12085.21-2011 "Environmental Test Methods for Optical and Optical Instruments - Part 21.Comprehensive Analysis of Low Pressure and Atmospheric Temperature and High Temperature

Comparing with GB/T 12085.5-2010, GB/T 12085.18-2011 and GB/T 12085.21-2011, except for structural adjustment

In addition to editorial changes, the main technical changes are as follows.

--- Changed the content of the "Scope" chapter (see Chapter 1, GB/T 12085.5-2010, GB/T 12085.18-2011,

Chapter 1 of GB/T 12085.21-2011);

--- Changed the test conditions for the test chamber (chamber), sample and temperature control requirements (see Chapter 4, GB/T 12085.5-2010,

GB/T 12085.18-2011, Chapter 3 of GB/T 12085.21-2011);

--- Changed the names of conditional test methods 45~51 (see Chapter 5, GB/T 12085.5-2010, GB/T 12085.18-

2011, Chapter 4 of GB/T 12085.21-2011);

--- Added specific requirements for temperature, air pressure and condensation control (see 6.2 and 6.3);

--- Added the description of the equipment, light source and test process used in the initial inspection and final inspection (see 6.4~6.6);

--- Changed the test procedure of conditional test method 50 (see 6.7, Chapter 5 of GB/T 12085.5-2010);

--- Added the test steps of Condition Test Method 51 (see 6.8);

--- Changed the content of the environmental test mark (see Chapter 7, Chapter 6 of GB/T 12085.5-2010, GB/T 12085.18-2011

Chapter 7 of GB/T 12085.21-2011 Chapter 6).

This document is modified using ISO 9022-23.2016 "Optics and Photonics Environmental Test Methods - Part 23.Low Pressure and Low Temperature, Atmospheric

Temperature, High Temperature or Damp Heat Comprehensive Test".

Compared with ISO 9022-23.2016, this document has the following structural adjustments.

--- Added "Terms and Definitions" chapter.

The technical differences between this document and ISO 9022-23.2016 and their reasons are as follows.

--- Changed the content in the scope (see Chapter 1), and changed "optical instruments" in the full text to "optical and photonics instruments" to

Meet the requirements of the application field of the optical industry;

--- Added the normative reference GB/T 12085.2 (see Chapter 4) to adapt to my country's technical conditions and improve operability;

--- Replace ISO 9022-8 (see Chapter 4, 5.3, 5.4, 5.5), GB/T 12085.1 generation with the normative reference GB/T 12085.8

Replaced ISO 9022-1 (see 6.1, Chapter 7) to adapt to my country's technical conditions and improve operability;

--- Changed the relevant requirements for atmospheric temperature (see Chapter 4) to conform to my country's national conditions;

--- Changed the relevant requirements for temperature and climate values (see Table 1 to Table 6) to conform to my country's national conditions;

--- Changed the unit of the air pressure value, and made corresponding conversions for the corresponding parameters (see Chapter 5) to conform to my country's national conditions.

The following editorial changes have been made to this document.

--- Chapter 7 replaces ISO 9022 (all parts) with GB/T 12085 (all parts) cited for information;

--- Changed the content of paragraph 1 of A.5, in line with the performance of the test chamber (room) equipment in use in my country (see A.5).

Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents.

Introduction

Optical and photonic instruments are widely used in various fields of national economy and international science and technology, due to the very complex environmental conditions of their use and transportation.

There are various environmental conditions, such as physical, chemical, biological, climatic and electrical, which will make optical and photonic instruments

The performance of the device has changed and it cannot function properly.

In view of the above reasons, in order to ensure the quality of optical and photonics instrument products, it is necessary to simulate a variety of complex changes in environmental conditions.

It is necessary to conduct tests on optical and photonics instrument products to assess their ability to withstand harsh environmental conditions, so GB/T 12085 includes test conditions,

Condition test, test procedure, environmental test marking, etc. At the same time, since there are many environmental conditions and they belong to different types, in order to facilitate the

For the implementation of the standard, GB/T 12085 is divided into 15 parts according to the type of environmental conditions.

--- Part 1.Terminology, test scope. The purpose is to unify the terms and definitions of environmental test methods, test procedures and environmental tests

mark.

--- Part 2.Low temperature, high temperature, damp heat. The purpose is to study the optical, climatic, mechanical, chemical and electrical (including electrostatic) of the sample

The degree to which properties such as these are affected by temperature and humidity.

--- Part 3.Mechanical forces. The purpose is to study the optical, climatic, mechanical, chemical and electrical (including electrostatic) properties of the sample.

The degree to which sex is affected by mechanical forces.

--- Part 4.Salt spray. The purpose is to evaluate the ability of the instrument surface and protective coating (plating) to resist salt spray.

--- Part 6.Sand and dust. The purpose is to study the optical, climatic, mechanical, chemical and electrical (including electrostatic) properties of the sample by

The degree of variation in the effects of sand and dust.

--- Part 7.dripping, raining. The purpose is to study the optical, climatic, mechanical, chemical and electrical (including electrostatic) properties of the sample

The degree of change affected by dripping water and rain.

--- Part 8.High internal pressure, low internal pressure, immersion. The purpose is to study the optical, climatic, mechanical, chemical and electrical (including static

The degree to which properties such as electricity are affected by high pressure, low pressure, or immersion in the ambient gas.

--- Part 9.Solar radiation and weathering. The purpose is to study the optical, climatic, mechanical, chemical and electrical (including electrostatic) of the sample

The degree to which properties such as these are affected by solar radiation or wind energy (solar exposure, damp heat).

--- Part 11.Mildew. The purpose is to study the optical, climatic, mechanical, chemical and electrical (including electrostatic) properties of the sample by

The degree of influence of mold growth, and evaluation of mold metabolites (such as enzymes or acids) cause corrosion of parts or cause

Severity of circuit board short circuit, etc.

--- Part 12.Pollution. The purpose is to study instruments, especially instrument surfaces, coatings or composite materials exposed to short-term exposure to

Resistance in reagents.

--- Part 14.Dew, frost, ice. The purpose is to study the optical, climatic, mechanical, chemical and electrical (including electrostatic) properties of the sample

Degree of exposure to dew, frost, and ice.

--- Part 17.Pollution, solar radiation comprehensive test. The purpose is to study the instrument, especially the surface, coating or composite material of the instrument

The material is resistant to corrosion by reagents and solar radiation in a short time.

--- Part 20.Moist air containing sulfur dioxide and hydrogen sulfide. The purpose is to study the optical, climatic, mechanical, chemical and electrical properties of the sample

Properties such as gas (including static electricity) are affected by sulfur dioxide or hydrogen sulfide.

--- Part 22.Comprehensive test for low temperature, high temperature or temperature change and impact or random vibration. The purpose is to study the optical,

Climatic, mechanical, chemical and electrical (including electrostatic) properties subject to combined low temperature, high temperature or temperature variation with impact or random vibration

the degree of change in the impact.

--- Part 23.Comprehensive test of low pressure and low temperature, atmospheric temperature, high temperature or damp heat. The purpose is to study the optics, climate,

The degree to which mechanical, chemical and electrical (including electrostatic) performance characteristics are affected by a combination of low and low, ambient or elevated temperatures.

Optical and Photonics Environmental Test Methods

Part 23.Low pressure and low temperature, atmospheric temperature,

High temperature or damp heat comprehensive test

1 Scope

This document describes environmental test methods for combined low pressure and low temperature, atmospheric temperature, high temperature or damp heat tests.

This document applies to low-voltage and

Low temperature, atmospheric temperature, high temperature or damp heat comprehensive test.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations

documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to

this document.

GB/T 12085.1 Optical and Photonics Environmental Test Methods Part 1.Terminology, Test Scope (GB/T 12085.1-

2022, ISO 9022-1.2016, MOD)

GB/T 12085.2 Optical and Photonics Environmental Test Methods Part 2.Low Temperature, High Temperature and Damp Heat (GB/T 12085.2-

2022, ISO 9022-2.2015, MOD)

GB/T 12085.8 Optical and Photonics Environmental Test Methods Part 8.High Internal Pressure, Low Internal Pressure, Immersion (GB/T 12085.8-

2022, ISO 9022-8.2015, MOD)

3 Terms and Definitions

There are no terms and definitions that need to be defined in this document.

4 Test conditions

This document sets the atmospheric temperature as (23+/-3)°C.

The temperature and climatic conditions specified in Tables 1 to 6 are in accordance with the conditional test methods 10, 11 and 12 specified in GB/T 12085.2.

When selecting the size of the test box and installing the sample, it should be ensured that the temperature of all the samples in the test box (chamber) is uniform.

For Condition Test Methods 45, 46, 50 and 51, air circulation in the low pressure box (chamber) is required. The low pressure box (chamber) itself can either

As a warm box (chamber), it can also be installed in a warm box (chamber).

For Condition Test Methods 47 to 49, a climate test chamber (chamber) is required. Using three different test methods, the optical and photonic

The comprehensive performance of humidity and heat resistance and internal pressure resistance of the scientific instrument was tested. Dew on the specimen is allowed. Each test step should be carried out one by one continuously, without

Trial interruption is permitted.

In addition to Conditional Test Method 47, if condensation occurs, the specimen shall be protected from falling condensate.

In addition to Condition Test Method 48, a low pressure vessel is required.

In addition to the conditional test method 49, according to the provisions of GB/T 12085.8, the sample should also have a connector for exhaust and pressure measurement.