GB/T 11881-2026Shuttlecocks (English PDF)

5 Requirements

5.1 Physical Properties The physical properties of a badminton shuttlecock should meet the requirements specified in Table 1.

5.2 Limits on non-natural badminton shuttlecock plasticizers Seven plasticizers found in non-natural badminton shuttlecocks [dibutyl phthalate (DBP), butyl benzyl phthalate (BBP), phthalic acid] Di(2-ethylhexyl) phthalate (DEHP), diisobutyl phthalate (DIBP), diamyl phthalate (DPENP), dihexyl phthalate The content of phthalates (DHEXP) and dicyclohexyl phthalate (DCHP) shall comply with the requirements specified in

5.3.4 of GB 6675.1-2025.

6 Test Methods

6.1 Appearance The inspection is conducted under light, with an illuminance of at least 600 lx. The distance between the viewer and the product should be.200 mm to 300 mm. The determination is made by visual inspection.

6.2 Ball mouth outer diameter Invert the sample so that the ball head faces upward and the opening faces downward, and place it on a measuring instrument with an accuracy of no more than

0.5 mm (see Figure 2). Measure the opening of the ball. The outer diameter D was measured three times, and the arithmetic mean was taken as the test result for a single sample. The result was rounded to one decimal place. The sample size is one cylindrical ball, and the basic outer diameter D of the ball opening is the arithmetic mean of the test results of all samples of this cylindrical ball, with the result rounded to one place. Decimals. Calculate the absolute value of the difference between the outer diameter D of all balls in the cylinder and the average value, and take the maximum value as the maximum deviation of the sample. The result is then preserved. Leave one decimal place.

6.3 Ball head diameter The diameter d of the ball head is measured using a vernier caliper with an accuracy of no more than

0.02 mm. The measurement is repeated 3 times, and the arithmetic mean is taken as the value of a single sample. The test results are rounded to two decimal places. The sample size is one sphere, and the basic diameter d of the sphere head is the arithmetic mean of the test results of all samples of that sphere, with the result rounded to two decimal places. Decimals. Calculate the absolute value of the difference between the diameter d of the ball head of all the balls in the cylinder and the average value, and take the maximum value as the maximum deviation of the sample. The result is then preserved. Leave one decimal place.

6.4 Ball head height Measure using a height vernier caliper with an accuracy of no more than

0.02 mm. Place the sample on the test table (see Figure 3) and record the sphere height. The height reading h1 at the highest point of the head and the reading h2 at the ball head reference surface (excluding the glue layer) are taken as the difference between h1 and h2. The test results for each sample are retained to two decimal places. The sample size is one sphere, and the basic dimension h of the sphere head height is the arithmetic mean of the test results of all samples of that sphere, with the result rounded to two decimal places. Decimals. Calculate the absolute value of the difference between the height h of the ball head of all balls in the cylinder and the average value, and take the maximum value as the maximum deviation of the sample. The result is then preserved. Leave one decimal place. 6.5mm insertion length of the raw film Randomly select one piece of fabric from the sample and measure its insertion length L using a steel ruler with an accuracy of no more than

0.5 mm (see Figure 1). This measurement is taken as a single piece. The test results of the sample are retained to one decimal place. The sample size is one tube ball, and the basic dimension L of the insert length is the arithmetic mean of the test results of all samples of this tube ball, with the result rounded to one decimal place. Decimals. Calculate the absolute value of the difference between the insertion length L of all balls in the cylinder and the average value, and take the maximum value as the maximum deviation of the sample. The result is then preserved. Leave one decimal place.

6.6 line distance Using a steel ruler with an accuracy of no more than

0.5 mm, measure the distance from the ball head reference surface (excluding the glue layer) to the upper and lower coils of the sample. The distance between the center points of the coil is the distance between the upper wire L_upper and the lower wire L_lower of the sample (see Figure 1), and the result is rounded to one decimal place. The sample size is 1 cylinder ball. The basic dimension of line distance L< sub>upper< /sub> and L< sub>lower< /sub> are the test results of the upper and lower line distances of all samples of this cylinder ball, respectively. The arithmetic mean of the results, rounded to one decimal place. Calculate the absolute values of the differences between the linear distances L< sub>upper< /sub> and L< sub>lower< /sub> of all spheres inside the cylinder and the average value. Take the maximum value as the maximum deviation of the sample. Round to one decimal place.

6.7 ball weight Using an analytical balance with an accuracy of not less than 0.001g, weigh each ball in a cylinder one by one, and take the arithmetic mean of the results, accurate to 0.01g. Calculate the absolute value of the difference between all the balls in the cylinder and the average value, and take the maximum value as the maximum deviation of the sample, accurate to 0.01g.

6.8 Metallic foreign objects Use a handheld metal detector that meets the requirements of GB 12899 for inspection.

6.9 Landing Characteristics Before the test, adjust the badminton serving machine to ensure that the distance between the landing point of the badminton shuttlecock and the serving machine is (9.5±1.5)m. During the test, 12 samples were placed sequentially into the ball-serving machine, and the equipment was started to continuously and stably hit all the balls. After hitting, it should be ensured that the shuttlecocks... The pom-poms fall freely, undisturbed by any people, air currents, or objects. After all the pom-poms come to a stop, observe and count the distances within the landing point (based on the number of pom-poms). The number of shuttlecocks (based on the center of the head-to-bottom contact point) is as follows: the distance from the landing point of the training shuttlecock to the serving machine is (460±5) mm, and the number of recreational shuttlecocks is... (1000±5)mm, and calculate the pass rate. Repeat the test once, and take the maximum pass rate of the two tests.

6.10 Flight Stability The rotational speed display scale value is no greater than 1 r/min, and the accuracy of the badminton shuttlecock head deviation and shuttlecock mouth deviation measurement system is no greater than [missing value]. The test was conducted using a 0.05mm simulated flight stability tester. Place one sample in a simulated flight stability tester. Adjust the shuttlecock's spin speed according to the product quality grade until the sample reaches the desired stability. After stabilization, observe and record whether the maximum values of the shuttlecock head deviation and the shuttlecock mouth deviation simultaneously meet the ranges in Table 2. The sample consisted of 12 balls, which were inspected one by one, and the pass rate was calculated.

8 Marking, Packaging, Transport and Storage

8.1 Marking Each shuttlecock should have a clear label.