Date : 2024-04-25 11:22:50
Introduction
There is seldom a direct relation between resistance to the action of salt spray and resistance to corrosion in other media, because several factors influencing the progress of corrosion, such as the formation of protective films, vary greatly with the conditions encountered. Therefore, the test results should not be regarded as a direct guide to the corrosion resistance of the tested metallic materials in all environments where these materials can be used, Also, the performance of different materials during the test should not be taken as a direct guide to the corrosion resistance of these materials in service.
Nevertheless, the method described gives a means of checking that the comparative quality of a metallic material,with or without corrosion protection,is maintained.
Different metallic substrates (metals) cannot be tested in direct comparison in accordance to their corrosion resistances in salt spray tests. Comparative testing is only applicable for the same kind of substrate.
Salt spray tests are generally suitable as corrosion protection tests for rapid analysis for discontinuitiespores and damage in organic and inorganic coatings. In addition, for quality control purposes comparison can be made between specimens coated with the same coating, As comparative test showever, salt spray tests are only suitable if the coatings are sufficiently similar in nature.
When interpreting test results (e.8., minimum time until appearance defects or protection defects) quality control or acceptance specifications, it is important to recognize that the salt spray test can have a low level of reproducibility, especially with production parts tested in different laboratories
It is often not possible to use results gained from salt spray testing as a comparative guide to the long-term behaviour of different coating systems, since the corrosion stress during these tests differs significantly from the corrosion stresses encountered in practice.
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Date : 2024-04-19 00:00:00
The icing test is conducted to evaluate the effect of icing on the operational capability of materiel. This Method also provides tests for evaluating the effectiveness of de-icing equipment and techniques, including prescribed means to be used in the field.
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Date : 2023-09-28 00:00:00
Dehumidifier performance environmental test chamber is a test equipment for dehumidifier performance test. The dehumidifier performance environmental test chamber of the Huanyi instrument can not only perform the performance test of the dehumidifier according to the national standard, but also measure the parameters of the air volume and refrigeration system.
Dehumidifier performance testing chamber
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Date : 2023-04-20 11:45:59
JESD22-A118 ACCELERATED MOISTURE RESISTANCE - UNBIASED HAST
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Date : 2023-04-20 11:45:21
JESD22-A102-C ACCELERATED MOISTURE RESISTANCE - UNBIASED AUTOCLAVE
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Date : 2023-04-20 11:42:58
ISO 4892-1:2016
Plastics — Methods of exposure to laboratory light sources — Part 1: General guidance
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Date : 2023-04-20 11:42:12
ISO 1431-1:2022
Rubber, vulcanized or thermoplastic — Resistance to ozone cracking — Part 1: Static and dynamic strain testing
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Date : 2023-04-20 11:41:29
IEC 60529:1989+AMD1:1999+AMD2:2013 CSV
Consolidated version
Degrees of protection provided by enclosures (IP Code)
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Date : 2023-04-20 11:19:42
IEC 60598-2-20:2022 Luminaires - Part 2-20: Particular requirements - Lighting chains
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Date : 2023-04-08 09:03:38
GB/T 36276-2018 Lithium ion batteries for electric energy storage
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Date : 2023-04-08 08:57:59
BS EN 15771-2010
中文名称:搪瓷釉和搪瓷.按照莫氏硬度标测定表面划痕硬度
英文名称:Vitreous and porcelain enamels - Determination of surface scratch hardness according to the Mohs scale
ICS分类:25.220.50中标分类:Y26;A29
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Date : 2022-10-25 10:08:11
IEC 60884-1:2022《Plugs and socket-outlets for household and similar purposes - Part 1: General requirements》
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Date : 2022-10-25 09:29:18
ENERGY STAR Computers Final Version 8.0 Specification Rev. July 2022
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Date : 2022-10-20 16:15:19
ISO 16750-4 Road vehicles — Environmental conditions and testing for electrical and electronic equipment — Part 4: Climatic loads
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Date : 2022-10-20 16:14:12
BS ISO 16750-5:2010 Road vehicles —Environmental conditions and testing for electrical and electronic equipment
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Date : 2022-10-20 16:09:58
(ISO 16750-3:2007), which has been technically revised.ISO 16750 consists of the following parts, under the general title Road vehicles
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Date : 2021-07-26 14:11:35
Salt spray test machine, This practice is applicable to ferrous and nonferrous metals; also organic and inorganic coatings. The variations described herein are useful when a different or more corrosive
environment than the salt fog described in Practice B 117 is desired.
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Date : 2021-06-23 14:08:23
Formaldehyde emission test chamber JIS A 1901, 15th Edition, October 21, 2019-Determination of the emission of volatile organic compounds and aldehydes by building products-Small chamber method
This Standard specifies a general laboratory test method for determination of emission rate of chemical substances emitted from building products into the air, by the use of chamber method.
This measurement procedure is applicable to building products such as boards wallpapers and floor materials, adhesives, paints and coating materials, and heat insulating materials.
Formaldehyde emission test chamber
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Date : 2021-06-02 16:15:00
2003 Guidelines for Environmental Infection Control in Health-Care Facilities
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