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40mm Table Tennis Balls

Top tips to help you choose your ideal table tennis ball.
Part two - approved 40mm table tennis balls.

 

Table tennis ballsIntroduction  |   Approved 40mm table tennis balls

 

In part one we looked at the different types of balls.

Let's now take a look at what qualities are needed by a table tennis ball to make it onto the ITTF approved list.

 

Tests are carried out for a ball's ...

 

  Appearance

The ball shall be white or orange, and matt, and must appear to be uniform and only have one seam.

 

  Weight

Although the official rules state that the ball shall be 2.7g, any weight between 2.67 and 2.77g is acceptable for any one ball in the test batch.

No more than 1 ball out of the 24 tested may be outside this range and the sample mean must be between 2.69 and 2.76g.

 

  Size

The minimum diameter of every ball must be at least 39.50mm, and its maximum diameter must not exceed 40.50mm.

The sample mean average diameter, i.e. the mean of the average of the maximum and minimum diameters for each ball, must be in the range 39.6mm to 40.4mm.

 

  Sphericity

The sphericity of a ball - or more correctly the lack of sphericity - is the absolute difference between its minimum and maximum diameters.

The sphericity of any ball must be less than 0.35mm, and the sample mean sphericity must be less than 0.25mm.

 

  Veer

Veer is a measure of the total sphericity of the ball.

It's measured by rolling the ball down a slight incline onto a horizontal surface, and measuring the distance by which it deviates from a straight line as it rolls across the surface.

Balls shall not deviate by more than 175mm from the center-line.

 

  Bounce

Every ball must rebound to a height of not less than 240mm or more than 260mm when dropped from a height of 305mm on to a standard steel block.

 

  Hardness

Hardness is measured with a fully automated and computerised tester. A 20mm diameter pin presses against a pole of the ball.

Measurements are made on each pole and the average for the poles provides a measure of the hardness.

The coefficient of variation shall be not greater than 0.06mm.

 

  Markings

The stamp on the ball must include the following four components:

  • The ITTF Approval. This may be indicated by the initials ITTF or ITTFA, or by the words "ITTF approved", or by using the ITTF logo
     

  • the trademark or brand name
     

  • the inscription "40" or "40mm"
     

  • the name of the country where the company headquarters are registered, or the expression "made in ..."

No other text is permitted.

 


 

The following is a list of ITTF approved 40mm table tennis balls valid from 1st January - 31st December 2008.

 

No Trademark / Brand Name Colour
1 729*** Orange
2 729*** White
3 andro*** White
4 andro*** Orange
5 Artengo*** White
6 Artengo*** Orange
7 Bethel*** White
8 Butterfly*** White
9 Butterfly*** Orange
10 Champion Platinum*** White
11 Champion Professional*** White
12 Cornilleau*** White
13 Cornilleau*** Orange
14 DHS*** Orange
15 DHS*** White
16 Donic*** White
17 Donic*** Orange
18 Double Fish*** Orange
19 Double Fish*** White
20 Dunlop Excel Sport*** White
21 Dunlop Excel Sport*** Orange
22 Gewo Ultra Super Selected*** White
23 Giant Dragon*** White
24 Giant Dragon*** Orange
25 Go Sport*** White
26 Go Sport*** Orange
27 Imperial*** White
28 Joola Gold*** White
29 Joola Gold*** Orange
30 Joola Super*** Orange
31 Joola Super*** White
32 Joola*** Orange
33 Killerspin*** White
34 Killerspin*** Orange
35 Nimatsu*** Orange
36 Nittaku Premium*** White
37 Nittaku Premium*** Orange
38 Nittaku*** White
39 Nittaku*** Orange
40 Peace S-S*** White
41 Peace*** White
42 Point-Blank*** White
43 Point-Blank*** Orange
44 Rucanor Triple Circle*** White
45 Schildkröt Super*** White
46 Schildkröt Super*** Orange
47 Stag Premium*** Orange
48 Stag*** White
49 Stag*** Orange
50 Stiga Competition*** White
51 Stiga Competition*** Orange
52 Stiga Optimum*** Orange
53 Stiga Optimum*** White
54 Sunflex*** Orange
55 Tibhar*** White
56 Tibhar*** Orange
57 Top Life*** White
58 Top Life*** Orange
59 TSP*** Orange
60 TSP*** White
61 Yasaka*** Orange
62 Yasaka*** White
63 Yashima*** Orange
64 Yashima*** White

 

 

 

Introduction  |   Approved 40mm table tennis balls

 

 

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