GB/T 27509-2011Overhead projectors -- Projection stages dimensions (English PDF)
透射式投影器 投影台尺寸
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Issued by
Standardization Administration of China
Level / Type
National · Recommended
Issue date
October 31, 2011
Implementation date
January 1, 2012
Scope
GB/T 27509-2011 is the English-translated version of 透射式投影器 投影台尺寸.
GB/T 27509-2011 — This standard specifies the type A (250mm × 250mm) and B (285mm × 285mm) transmissive projector screen projection station area Location Dimension, pin location, size, and the size of the flat region of the support rod, and a projection head two significantly different in that the mesa projection screen Area size.
This standard applies to A-type (250mm × 250mm) and B (285mm × 285mm) transmissive projector. This standard is compatible with two kinds of countertops as well as their projector transparencies, projector does not apply to other special purpose, does not include such Projection radiographs with special equipment.
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Document preview — GB/T 27509-2011
National Standard of the People's Republic of China
- ICS
- 37.040.10
- Classification
- N 45
Issued by: Standardization Administration of China
Contents
- What this standard covers1
- Document data2
What this standard covers
This standard specifies the type A (250mm �� 250mm) and B (285mm �� 285mm) transmissive projector screen projection Taiwan area size, pin position, size and formation zone size and position of the projection head support rod, two kinds of countertops projector significant difference is that the screen size of the area. This standard applies to Type A (250mm �� 250mm) and B (285mm �� 285mm) transmissive projector. This standard is compatible with both the table and their projector transparencies, does not apply to other special-purpose projector, projection does not include such radiographs using special equipment.
Document data
International classification (ICS): 37.040.10.
Chinese classification (CCS): N45.
Estimated length of the Chinese original: 9,980 words.
Adopted international standard: ISO 7943-1-1987, MOD.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 7 pages — is available in the English PDF.
Referenced standards
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