HOME   Cart(1)   Quotation   About-Us Tax PDFs Standard-List
Powered by Google-Search & Google-Books www.ChineseStandard.net Database: 189760 (18 Mar 2023)

QB/T 3826-1999 (QBT 3826-1999)

Chinese standards (related to): 'QB/T 3826-1999'
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)See DetailStatusGoogle Book
QB/T 3826-1999English70 Add to Cart 0-9 seconds. Auto delivery. Corrosion-resistant testing method of the metal deposits and conversion coatings for the light industrial products. Neutral salt spraying test (NSS) QB/T 3826-1999   QBT 3826-1999


   
BASIC DATA
Standard ID QB/T 3826-1999 (QB/T3826-1999)
Description (Translated English) Corrosion-resistant testing method of the metal deposits and conversion coatings for the light industrial products. Neutral salt spraying test (NSS)
Sector / Industry Light Industry Industry Standard (Recommended)
Classification of Chinese Standard Y73;A29
Word Count Estimation 3,349
Date of Issue 1986/3/11
Date of Implementation 1986/12/1
Older Standard (superseded by this standard) GB 5938-1986
Adopted Standard ISO 3768-1976, NEQ; ISO 3770-1976, NEQ
Drafting Organization Shanghai Daily Hardware Industry Research Institute
Administrative Organization China Daily Hardware Standardization Center
Regulation (derived from) Industry-Science (2010) No.77
Summary This standard applies to test the corrosion resistance and chemical treatment of metal plating layer.


QB/T 3826-1999: PDF in English (QBT 3826-1999)
QB/T 3826-1999
QB
LIGHT INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
Class No.. Y 73
Corrosion-Resistant Testing Method of the Metal
Deposits and Conversion Coatings for the Light
Industry Products – Natural Salt Spraying Test (NSS)
ISSUED ON. APRIL 21, 1999
IMPLEMENTED ON. APRIL 21, 1999
Issued by. State Bureau of Light Industry
Table of Contents
Foreword ... 3
1 Equipment ... 4
2 Test Solution ... 5
3 Test Conditions ... 5
4 Test Methods ... 5
5 Specimen ... 6
6 Specimen Cleaning and Inspection ... 6
7 Assessment of Test Results ... 7
8 Test Report ... 7
Foreword
This Standard is same as national standard GB 5938-1986 Corrosion-Resistant
Testing Method of the Metal Deposits and Conversion Coatings for the Light Industry
Products – Natural Salt Spraying Test (NSS), of which the standard number was
transferred into GB/T 3826-1999 through the publication of GQX (1999) No.112
Document; while the content of which remained unchanged.
This Standard was proposed by the Industry Management Division of State Bureau of
Light Industry.
This Standard shall be under the jurisdiction of National Center for Standardization of
Daily Hardware.
Drafting organizations of this Standard. Shanghai Research Institute of Daily Hardware
Industry, and Shanghai Light Industry Research Institute.
Chief drafting staffs of this Standard. He Changlin, Zhang Fulin, Dong Zicheng, and
Jiang Haizhu.
Corrosion-Resistant Testing Method of the Metal
Deposits and Conversion Coatings for the Light
Industry Products – Natural Salt Spraying Test (NSS)
This Standard is applicable to inspect the corrosion-resistant performance of metal
deposits and conversion coatings.
This Standard refers to ISO 3768-1976 Metal Coatings - Natural Salt Spraying Test
(NSS Test).
1 Equipment
1.1 The test equipment consists of salt spray chamber, saltwater container,
compressed air supplying (including purifying) system, nozzle, sample frame, heating
and other necessary controlled manners. If the obtained conditions can satisfy the
requirements of this Method, the dimension and structure of the equipment shall not
be confined.
1.2 The structural materials of the test equipment shall not only influence the
corrosion performance of the salt mist; but also is corrosion-resistant.
1.3 No condensed droplets on the top of the salt spray chamber are allowed to drop
onto the sample.
1.4 Baffle is equipped in the salt spray chamber, which prevent the salt mist to jet
onto the sample.
1.5 Minimum two collectors used for cleaning are placed in the exposed area of the
salt spray chamber. One collector is close to the nozzle; while the other shall be placed
at the farthest place away from the nozzle. The placing positions of the collectors are
required in condition that only salt mist rather than the liquid dropped from the sample
or chamber shall be collected. A suitable collector indicates the 10cm-dimameter
funnel or crystal cup inserting into the graduate flask; while the collecting area is 80cm2.
1.6 If the equipment has been tested by a different solution not stipulated in this test,
it must be adequately cleaned before use.
......