|
US$189.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 14625.5-2008: Test methods for basketball, football, volleyball and handball -- Part 5: Measurement of circumference and its variation
Status: Valid GB/T 14625.5: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 14625.5-2008 | English | 189 |
Add to Cart
|
3 days [Need to translate]
|
Test methods for basketball, football, volleyball and handball -- Part 5: Measurement of circumference and its variation
| Valid |
GB/T 14625.5-2008
|
| GB/T 14625.5-1995 | English | 199 |
Add to Cart
|
2 days [Need to translate]
|
The measurement of circumference and its variation for basketball, football, volleyball and handball
| Obsolete |
GB/T 14625.5-1995
|
PDF similar to GB/T 14625.5-2008
Basic data | Standard ID | GB/T 14625.5-2008 (GB/T14625.5-2008) | | Description (Translated English) | Test methods for basketball, football, volleyball and handball -- Part 5: Measurement of circumference and its variation | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Y56 | | Classification of International Standard | 97.220.01 | | Word Count Estimation | 8,826 | | Date of Issue | 2008-12-30 | | Date of Implementation | 2009-09-01 | | Older Standard (superseded by this standard) | GB/T 14625.5-1995 | | Quoted Standard | GB/T 14625.4 | | Regulation (derived from) | National Standard Announcement 2008 No.25 (Total No.138) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the basketball, football, volleyball, handball circumference, circumference difference measurement methods and calculations. This section applies to racing and daily activities with basketball, football, volleyball, handball. | GB/T 14625.5-2008: Test methods for basketball, football, volleyball and handball -- Part 5: Measurement of circumference and its variation
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Test methods for basketball, football, volleyball and handball.Part 5. Measurement of circumference and its variation
ICS 97.220.01
Y56
National Standards of People's Republic of China
GB/T 14625.5-2008
Replace GB/T 14625.5-1995
Basketball, football, volleyball, handball test methods
Part 5. Measurement of circumference length and circumference difference
Released on.2008-12-30
2009-09-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Administration issued
Foreword
GB/T 14625 "Basketball, Football, Volleyball, Handball Test Method" is divided into five parts.
---Part 1. Determination of roundness;
--- Part 2. Determination of the rebound height;
---Part 3. Dynamic impact test method;
--- Part 4. Test conditions and sample preparation;
--- Part 5. Measurement of circumference length and circumference difference.
This part is the fifth part of GB/T 14625.
This section refers to the FIBA "Basketball Competition Rules", FIFA "Football Competition Rules", and the International Volleyball "Volleyball Competition Rules"
Formulated.
This part replaces GB/T 14625.5-1995 "Basketball, football, volleyball, handball circumference, circumference difference measurement".
The main changes in this section compared with GB/T 14625.5-1995 are as follows.
a) "Circumference measuring instrument" and "fiber tape" are added to the "device";
b) simplify and unify the measurement method;
c) A method of measuring the circumference of the circumference with a circumferential length measuring instrument is added.
This part was proposed by the China Light Industry Federation.
This part is under the jurisdiction of the National Leather Industry Standardization Technical Committee (SAC/TC252).
This section drafted by. High-speed rail testing equipment (Dongguan) Co., Ltd., National Sports General Administration Equipment and Equipment Center, China Leather and Shoemaker
Industry Research Institute, Guangzhou Hailesi Ball Manufacturing Co., Ltd., Yuxi (Kunshan) Sporting Goods Co., Ltd.
The main drafters of this section. Chen Jingchang, South Korea Chun, Zhong Yaoqiang.
This section was first released in December.1995 and this is the first revision.
GB/T 14625.5-2008
Basketball, football, volleyball, handball test methods
Part 5. Measurement of circumference length and circumference difference
1 Scope
This part of GB/T 14625 specifies the measurement methods and calculations for basketball, football, volleyball, handball circumference and circumference difference.
This section applies to basketball, football, volleyball, and handball for competitions and daily activities.
2 Normative references
The provisions in the following documents become the provisions of this part by reference in this part of GB/T 14625. Quotations with dated
And all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouragement is achieved in accordance with this section.
The parties to the agreement study whether the latest versions of these documents can be used. For undated references, the latest edition applies to this
section.
GB/T 14625.4 Basketball, football, volleyball, handball test methods - Part 4. Test conditions and sample preparation
3 devices
3.1 Barometer, accuracy 1.5, range 0 ~ 0.16MPa, minimum scale 0.0025MPa.
3.2 The circumferential length measuring instrument shall have the following main components in accordance with the following requirements.
---Indicative accuracy, 0.1mm;
---Pinch ball clamping force, 5N ± 2N;
--- Automatic calculation and recording device.
3.3 Metal tape or fiber tape with a minimum scale of 1mm.
4 Test conditions and sample preparation
Should comply with the provisions of GB/T 14625.4.
5 Test methods
5.1 circumference length measuring instrument measurement
5.1.1 Start the circumference measuring instrument, place the sample on the lower holding plate and lower the upper holding plate.
5.1.2 Adjust the measuring head according to the different diameter of the ball until it touches the spherical surface.
5.1.3 Adjust the dial gauge bracket according to the different diameters of the ball until it touches the sphere.
5.1.4 Adjust the upper and lower brackets to find the maximum point of the horizontal diameter of the specimen.
5.1.5 Start the motor and drive the lower clamping disc for one rotation. The encoder automatically rolls around the ball horizontally and records the rolling distance.
5.1.6 The microcomputer automatically calculates the circumference of the ball.
5.1.7 Adjust the position of the sample and measure it three times to ensure that the three ball planes are perpendicular to each other and that two measurements pass through the ball nozzle.
5.2 Manual measurement
Use metal tape or fiber tape to measure three times a week, the first time and the second time pass through the ball mouth.
Straight intersecting, the third measurement trajectory intersects the first and second measurement trajectories at the same time.
GB/T 14625.5-2008
6 representation of the result
6.1 circumference length
It is expressed as the average of the circumferential length obtained by three measurements, and is calculated according to formula (1).
L=L1+L2+L33
(1)
In the formula.
L---circumference length in millimeters (mm);
L1, L2, L3---The circumferential length obtained in three measurements, in millimeters (mm).
The calculation results retain three significant figures.
6.2 circumference difference
The maximum difference of the circumferential length obtained by three measurements is the circumferential difference, which is calculated according to formula (2).
ΔL=Lmax-Lmin (2)
In the formula.
ΔL---circle difference, in millimeters (mm);
Lmax---maximum circumference length in millimeters (mm);
Lmin---minimum circumference in millimeters (mm).
7 test report
The test report should contain the following.
a) the number of this part;
b) sample name, number, type, manufacturer (or trademark), date of manufacture;
c) test results (each test value, circumference length, circumference difference);
d) anomalies that occur during the test;
e) the difference between the measured method and this part;
f) Tester and date.
GB/T 14625.5-2008
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 14625.5-2008_English be delivered?Answer: Upon your order, we will start to translate GB/T 14625.5-2008_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB/T 14625.5-2008_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 14625.5-2008_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay. Question 5: Should I purchase the latest version GB/T 14625.5-2008?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 14625.5-2008 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.
|