GB/T 9789-2008Metallic and other non-organic coatings -- Sulfur dioxide test with general condensation of moisture (English PDF)

Foreword

This standard is equivalent to international standards ISO 6988. 1985 sulfur dioxide under "metals and other inorganic coatings general condensation Corrosion Test "(in English).

This standard is based on ISO 6988. 1985 Translation drafted. For ease of use, the editorial changes made the following standard.

--- Delete international standards foreword, preface increased our standards;

--- "This International Standard" be replaced by "of this standard." this standard replaces GB/T 9789-1988 "sulfur dioxide corrosion test under metal and other non - organic coatings general condensation Experience. " Compared with GB/T 9789-1988 The main changes are as follows.

--- With GB/T 6461-2002 "on the metal base metals and other inorganic coatings by etching after the test specimens and the rating of" Replace GB/T 6461-1988 "metal plating layer covering a sample rating for the substrate to cover the cathode layer after corrosion tests";

--- Increasing the reference standard GB/T 16545-1996 "Removal of corrosion products from corrosion of metals and alloys of the sample." the standard proposed by China Machinery Industry Federation.

This standard layer Standardization Technical Committee (SAC/TC57) administered by the National Metal and non-metal cover.

This standard was drafted. Wuhan Institute of Material Protection, Ma On Shan Ding Tai Rare Earth New Materials Co., Ltd., Zhejiang Xinfeng Holdings Limited Company, Beijing Yongtai and anti-corrosion Technology Co., Ltd.

Drafters of this standard. Zhangsan Ping, Anjiang Feng, Zheng Penghua, Shi Zhimin, Zheng Xiulin, Liu Ji Lu, Zhang Hongwei, Zhengxiu Hai.

This standard replaces the standards previously issued as follows.

--- GB/T 9789-1988.

GB/T 9789-2008/ISO 6988. 1985 Metallic and other inorganic coatings generally Gel Sulfur dioxide test conditions

1 Scope

This standard specifies the sulfur dioxide in the atmosphere and condensation of containing materials or test methods for corrosion resistance of the product.

Wood standard applies to metallic coatings and inorganic coatings for corrosion tests.

This standard does not apply to corrosion testing paints and varnishes cover layer.

The test results can not be directly used as the test material in all kinds of environments encountered in the use of corrosion resistance guide also can not be Direct guidance materials for different relative corrosion resistance when in use.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms of dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.

Rating of test specimens and the (GB/T 6461- after the metals and other inorganic coatings after corrosion test GB/T 6461 metal matrix 2002, ISO 10289:1999, IDT) GB/Clear T 16545 corrosion test specimens of metals and alloys corrosion products (GB/T 16545-1996, idt ISO 8407:1991)

3 Equipment and materials