This standard specifies the requirements, test methods, inspection rules and marking, packaging, transportation and storage of lip vibration wind instruments. This standard applies to F-key rotary piston horns, and other horns can be used as a reference. This standard should be used together with QB/T1657.1-2002 "General Technical Requirements for Lip Vibration Wind Instruments". QB/T 1657.3-2002 French Horn QB/T1657.3-2002 Standard download decompression password: www.bzxz.net

Equipment number: 10837-2902
Light Industry Standard of the People's Republic of China
QB/T1657.3—2002
Release date: QB1657.31992
2002-09-21
National Economic and Trade Commission of the People's Republic of China Implemented on 2002-12-01
WWW.bzsoso:comForeword
QB/T1657.3—2002
The manufacturing process and use of household products have not changed. Except for the annual revision of QBT1657.3-10, the other revisions are the same as Q0/T1657.1 2002 Good News Dynamic Air Music Broadcasting General Technical Articles Not accompanied by more orders and made by the mountain. This standard is proposed by the China Economic Federation: the technical standard is under the jurisdiction of the Jinsi Musical Instrument Standardization Center. The main Beijing wind instrument: the first round of Beijing demonstration belt research new negative market implementation section, Hebei Jinyin Kaiqi Manufacturing Co., Ltd., Tianyang Zhengbao Musical Instrument Co., Ltd., Shantai Pipe Manufacturing Co., Ltd. participated in the drafting: the main standard people: Chen Shirong, "Wei, Ji Cailu, Chu Zhengqiu, Medical Kong, Liu Fei, Dang Guofang, Yang Dexiao. The standard was first issued in 1993, and this is the first revision since the standard was implemented. At the same time, the light industry standard QB\[657.3-192 No. 8W1 Scope
QE/T 1657.3·2002
4 standard specifies the requirements, test methods, inspection rules and marking, packaging, transportation and storage of pneumatic instruments. This standard is applicable to F-mode instruments and other pneumatic instruments. This standard is used in conjunction with QB1657.1-202 General Technical Guide for Pneumatic Instruments. 2 Normative Reference Documents
The clauses in the following documents become the clauses of this standard through the reference of this standard. For all reference documents with a three-year annotation, all subsequent amendments (including the contents marked below) or revisions are applicable to the standard, however , All parties to this standard may use the latest versions of these documents as references. For any referenced documents without a date, the latest version shall apply to this standard. QDT1657.1-2002 Technical Requirements for the Use of Aircrafts 3.1 Product classification shall comply with the requirements of QB/T1657.1-20024.1. 3.2 Temperament, standard pitch, and pitch shall comply with the requirements of QB/T1657.1-20024.2. 3.3 Sound quality, color, and range. Each product shall have accurate sound, soft tone, and rich in vitality. 3. 4.4.1~4.4.9..4.4.11,4.4.12 of QB/T1657.1-2002. 3.7.4.5 of QB/T1657.1-3002. 3.8.6 of QB/T1657.1-2002. 3.9 Main raw materialsbzxZ.net
Core QB/1657.12002=4.7 Requirements
4 Testing methods
4.1 Pitch
Construction shall conform to the requirement of 5.2 in Q1B/11657.1-20U/2: 4.2 General quality and timbre
shall conform to the requirement of 5.3 in QB/T1657.120M2. 4.3 Performance
4.3.1 The tension test of the attached general and tuning pipe is to fix the sea net number, the pipe net mouth is upward, and the compensation weight is placed on the batch hook in turn (the weight of the hook mouth is included, and the weight of the pipe! The brick weight control number when sliding is the standard. 4.3.2! The test characteristics of the date are in accordance with 5.4.1~5.4.515.4.7 of 200B/165?.1-2002. 4.4 Appearance process
It should meet Q 4.5 Assembly
shall comply with the provisions of 5.7 or 5.7 of B/T1657.1-2002; 5 Inspection rules
shall comply with the provisions of Section 6 of QB/T1657.1-2002. 6 Marking, packaging, transportation, storage
shall comply with the provisions of Section 7 of QB/T1657.1-2002. 3
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