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GB/T 32065.10-2020Environmental test methods for oceanographic instruments—Part 10: Salt fog test (English PDF)

海洋仪器环境试验方法 第10部分:盐雾试验

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

November 19, 2020

Implementation date

June 1, 2021

Scope

GB/T 32065.10-2020 is the English-translated version of 海洋仪器环境试验方法 第10部分:盐雾试验.

GB/T 32065.10-2020 is Part 10 of the Chinese environmental test methods for oceanographic instruments, on the salt fog test. It sets the test requirements and the information to be recorded, and serves to judge how well marine instruments and components resist salt fog and how it affects their performance and function.

The test uses a salt fog chamber, a damp heat chamber or a combined chamber, plus a drying oven at (40 ± 2) °C. The salt solution is 4.9 % to 5.1 % sodium chloride by mass, chemically pure or better, in distilled water, at pH 6.5 to 7.2 at 35 °C. The spray stage runs at (35 ± 2) °C, the damp heat stage at (40 ± 2) °C with (93 ± 3) % relative humidity. Issued on 19 November 2020, it has applied since 1 June 2021.

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Document preview — GB/T 32065.10-2020

National Standard of the People's Republic of China

ICS
19.040
Classification
A 21

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

Contents

  • Foreword
  • 1 Scope
  • 2 Normative references
  • 3 Test requirements

Foreword

GB/T 32065 "Marine Instrument Environmental Test Method" 1) is planned to be divided into the following parts.

1) Part 1 to Part 7 were released in 2015, and Part 9, Part 14, and Part 15 were released in 2019.

---Part 1: General Provisions;

---Part 2: Low temperature test;

---Part 3: Low-temperature storage test;

---Part 4: High temperature test;

---Part 5: High temperature storage test;

---Part 6: Constant damp heat test;

---Part 7: Alternating damp heat test;

---Part 8: Temperature change test;

---Part 9: Mold growth test;

---Part 10: Salt spray test;

---Part 11: Impact test;

---Part 12: Crash test;

---Part 13: Tilt and swing test;

---Part 14: Vibration test;

---Part 15: Hydrostatic test;

---Part 16: Seawater corrosion test;

---Part 17: Temperature-Humidity-Vibration Comprehensive Test;

---Part 18: Biological attachment test;

--- Part 19: Immersion test.

This part is Part 10 of GB/T 32065.

This section was drafted in accordance with the rules given in GB/T 1.1-2009.

1 Scope

This part of GB/T 32065 specifies the test requirements, test process and related information for salt spray test of marine instruments and components.

This part is applicable to assess the salt spray corrosion resistance of marine instruments and components and the influence of salt spray on the performance and functions of marine instruments and components.

2 Normative references

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

GB/T 32065.1-2015 Environmental test methods for marine instruments Part 1: General

GB/T 32065.6-2015 Marine instrument environmental test method Part 6: Constant humidity test

3 Test requirements

3.1 General requirements

The standard atmospheric conditions in this section shall be carried out in accordance with the provisions of 4.2 in GB/T 32065.1-2015.

3.2 Test equipment

3.2.1 The test equipment should comply with the provisions in Chapter 5 of GB/T 32065.1-2015.

3.2.2 The test equipment should be a combination of salt spray test chamber (chamber), damp heat test chamber (chamber) or composite salt spray test that meets the test requirements Box (chamber), and drying box.

3.2.3 The damp heat test chamber (chamber) should meet the requirements of 3.2 in GB/T 32065.6-2015.

3.2.4 The composite salt spray test chamber (chamber) shall meet the requirements of 3.2 in GB/T 32065.6-2015 when performing damp heat test.

3.2.5 The drying box should be able to provide a dry environment of (40±2)°C.

3.3 Test conditions

3.3.1 Salt solution

This experiment uses sodium chloride (chemically pure and above) and distilled water to prepare a salt solution with a concentration of 4.9% to 5.1% (mass fraction). The salt The pH of the solution at 35°C should be between 6.5 and 7.2. It can be measured with a pH meter or precision pH test paper. The pH of the salt solution can be used It can be adjusted with dilute hydrochloric acid or sodium hydroxide above the purity level.

3.3.2 Test temperature and test humidity

The test temperature in the spray phase is (35±2)°C; the test temperature in the humid and hot phase is (40±2)°C, and the relative humidity is (93±3)%.

3.3.3 Settlement rate

Adjust the sedimentation rate of the salt spray so that the collector can be placed at any position in the effective space of the salt spray test box (chamber) or composite salt spray test box (chamber).

......
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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