This standard specifies the requirements, test methods, inspection rules and marking, packaging, transportation and storage of 4/4 cello bows. This standard applies to 4/4 cello bows. QB/T 2663-2004 4/4 cello bows QB/T2663-2004 Standard download decompression password: www.bzxz.net

[CS 97.200.20
Classification number: Y58
Registration number: 151282005
Light Industry Standard of the People's Republic of China
QB/T2663-2004
4/4 cello bow
4/4 cello bow
Published on 2004-12-14
Implementation by the National Development and Reform Commission of the People's Republic of China on 2005-06-01
This standard should be used in conjunction with QB/12607-2003. This standard was proposed by the Light Industry Joint Publication of the People's Republic of China. The technical standard is issued by the National Instrument Standardization Center. This standard was drafted by Beijing Instrument Research Institute and Taixing Fengling Musical Instrument Co., Ltd. The main drafters of this standard are: Zhang Zhenqi, Fu Shu, Chen Wu, Shi Wei, Qian Gongmin, Nan Tang. This standard is released for the first time.
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QB/T 2663—2004
1 National Standard
4/4 Cello Bow
QB/T2663—2004
This standard specifies the source, test methods, inspection regulations and marking, packaging, transportation and storage of 4/4 cello products. This standard extends the use of 4/4 cello bows.
2 Normative References
The clauses of the following three documents become the clauses of this standard through the pressure of this standard. The applicable text is the one that is available at the time of the notice. The later modification (without error inclusion) or revision shall be included in the applicable technical standards. However, the parties who have reached an agreement on this standard are encouraged to use the latest version of these documents. For any expiring reference, the latest version shall apply. QB/T2607-2003 General Technical Specifications 3 Requirements
3.1 Product Classification
Should be in accordance with the provisions of QB/T2607-2003*3.1, 3? The main dimensions of the bow shall conform to the standard of the standard 1. The thinnest part on the top of the bow is 1/2 of the length and 5 mm from the end. 3.3 The balance point of the bow and the quality of the bow shall conform to the specifications in Table 2. 3.4 The appearance and craftsmanship shall conform to the high-end products of Taiwan QB/2G0720033.4 710~721 6.0 · 6.8 30. 5 --32. 0 27.0--28. D 12. 0--13. 0 14. U~15 5 23. --25. 0
Self-made
General products
9.5--10.1
9.6~~30.2
OB/T 2663 -2002
Main raw materials
Conform to the provisions of 3.5 in QB/12607-2003: Item H
The high point of the measurement must be the vertical line of the low point of the measurement
water, zero ticket
Part height: mm
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prohibited·, navigation quantity/g
intense test method
some are not included:
enterprise rice sales (net screw) ≤T balance point
the original separation
conforms to the provisions of paragraph 4 of Qm/T2607-2003. 5 Inspection rules
should comply with the provisions of paragraph 5 of Qm/T2607-2003. 6 Marking, packaging, transportation and storage
comply with the provisions of the sixth quantity book of QB2607-20034. 2
classic products
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255--265
73--83
252--271
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