International cleanroom standards oled module

In 1990, in response to the development level of worldwide recognition of the clean room, the construction and operation of the program requirements, through established within the European Committee for Standardization CEN/TC243 One occasion doped nibbling Huang Li (CEN: ComiteEuropeendeNormalisation; TC: Technical Committee) and created a a requirement to develop procedures and international institutions. CEN/TC243 Technical Committee by the British Standards Institution (BSI) initiative established, which consists of four working groups:
- The first working group airborne pollution
- Working Group II microbiological contamination
- Design and Operation of Working Group III
- Terminology Working Group IV
As CEN/TC243 establishment and Environmental Science and Technology Association (IEST) and other initiatives to clean Engineering Society, the International Organization for Standardization (ISO) in 1992 and the establishment of a technical committee, which ISO/TC209 "clean rooms and associated controlled Environment "technical committee. The purpose of its creation time is within the field of clean room engineering standardization of global recognition can never exclude the United States and Japan. May 1993, the Technical Committee was formally established. Thus, CEN/TC243 four working groups have been promulgated and published seven draft standard. ISO/TC209 The first meeting was held in November 1993. Before the end of 1999, the Commission on the development of global standards agreement. At this meeting, the first batch of 11 full members (P members) confirmed their membership. Since then, P the number of members increased to 19, the current members to attend (O members) has 17. ISO/TC209 official mission is "the spirit of the equipment, facilities and operational approaches standardization purposes, the development of clean rooms and associated controlled environments international standards to determine the procedural limits and test procedures in order to reduce pollution."
Given the impact of standardization work in the world, ISO/TC209 and CEN/TC243 work places so-called "Vienna Agreement" as the basis, which is the International Organization for Standardization (ISO) and the European Committee for Standardization CEN technical cooperation between a agreement. The purpose of this program is to ensure that the International Organization for Standardization and the European Committee for Standardization in working with a theme will be available when needed fed back, and to ensure that the development of these standards can be implemented Man Yun Hi Po táng  resistant plating Directed North acupuncture filthy boas  . Can play an effective role as a decision, "Vienna Agreement" in this case the aim is, ISO/TC209 draft European standards in order to develop international standards based on the work to continue to play a leading role, and plays an auxiliary CEN/TC243 and comment on the role. Then set up seven working groups, in CEN/TC243 working group based on the completion of its stated goals, the eighth Working Group was established in 1998:
- The first working group aerosols cleanliness, group
- Working Group II biological contamination
- Working Group III Metrology and Test Methods
- Design and Construction of Working Group IV
- Report of Working Group cleanroom operation
- Working Group VI of terms, definitions and units
- Working Group VII Enhanced cleaning device
- Working Group VIII molecular contamination
Development of an international standard to be followed by a strict set of arrangements. Provisions in accordance with ISO and CEN standardization process, its advantages:
- All industry-leading active and serious geographic participation largely expected to be beneficial to the formation of professional technical and global links.
- Fixed strict formal procedural arrangements ensuring transparency and recognition.
- Right now considering rules and regulations to promote the development of guidelines in terms of coordination. 16x1 lcd display
Standardization principles explained as follows:
- For the clean room engineering standards developed, should be dedicated to this field has an overall impact on the subject, regardless of their relevance to, shall apply
All the clean room engineering and associated application area.
- Specific applications, such as: specific technical department of the air cleanliness requirements, should not be used ISO/TC209 for processing.
- These standards should be targeted: the requirements to be achieved must be clearly defined, but the completion of objectives, namely technical measures taken,
- Should ensure a maximum degree of freedom.
Should be encouraged and facilitated, and must not impede progress.
- These standards should help to reduce trade restrictions and promoting technological understanding among nations, we can not for some countries to implement privilege, nor
Can take their discriminatory attitudes.
In these standardized project work meeting, repeatedly declared to follow the principle of consensus led to the importance of technical standardization. This principle requires, is not used to make decisions within the working group the way most people vote, all technical issues must be on the basis of unanimity resolved. In practice, this means that, for there are different views on the issue, either through discussion and eventual agreement solution, or not included in the scope of standardization work. custom lcd display
Again, whenever the exaggerated, inappropriate, or in their own interests the provisions set forth in the exclusion from the standardization work out, have confirmed the principle that effective screening measures. When certain countries or with the authority of the rules and regulations affecting performance to impede, not advance when, ISO/TC209 to actively make necessary unconventional move. One example is the clean room airflow requirements and isolate problems.
Instead, consensus is not based on principles set out guidelines and to reflect the individual experience or individual professionals review the terms of the content, are not included in the regulations.