GB / T 22868-2008"Basketball" iteganya ko basketball igabanijwemo basketball y'abagabo bakuze (No 7), basketball y'abagore bakuze (No 6), basketball y'urubyiruko (No 5), na basketball y'abana (No 3) ukurikije umubare w'abakoresha ndetse na umuzenguruko wumupira. Uruhu rwa Basketball hamwe nimpu zongeye gukoreshwa birashobora kubora amarangi yangiza ya amine am 30mg / kg, hamwe na fordehide yubusa ≤ 75mg / kg. Ubuso bwuruhu rwubukorikori, uruhu rwubukorikori, hamwe nimpu zongeye gukoreshwa zikoreshwa mubikorwa bya buri munsi bya basketball ntizigomba kugira inenge nkibibyimba cyangwa gusiba, kandi biremewe. Hano hari utunenge 5 duto dufite ubuso bwa mm 5mm2 byemewe; Ubujyakuzimu bw'imisozi hejuru ya reberi irashobora kuba ≤ 0.5mm, kandi inenge zegeranye zemewe kuba ≤ 7cm2; Ubugari bwa spherical seam cyangwa groove ni .5 7.5mm. Itandukaniro ryumuzenguruko wa Basketball ≤ 5mm, byemewe gutandukana kwumuvuduko wikirere nyuma yamasaha 24 yifaranga no gushyira static ≤ 15%; Nyuma yingaruka 1000, igipimo cyo kwaguka ni ≤ 1.03, agaciro ka deformasiyo ni mm 3mm, naho umuvuduko wumuvuduko ukabije mumupira ni ≤ 12%.
GB 23796-2008"Ikibuga cya Basketball" giteganya ko inyuma yinyuma igomba kuba urukiramende, kandi impande zayo zegeranye zigomba kuba zegeranye. Itandukaniro riri hagati ya diagonals ebyiri ntirishobora kurenga 6mm. Niba inyuma yinyuma harinzwe numupaka wicyuma, umupaka winyuma wumurongo winyuma ugomba kuba byibura 20mm z'ubugari kandi ntukumirwa numupaka wicyuma. Inyuma yinyuma igomba gucapishwa kumipaka yimbere ninyuma, hamwe nibibaho bisobanutse bifite imipaka yera imbere ninyuma hamwe ninyuma zidafite umucyo zifite imipaka yumukara. Uruzitiro rukozwe mu byuma bikomeye, hamwe na diameter ya rim diameter ya 16mm kugeza 20mm na diametre y'imbere ya 450mm kugeza 459mm. Urushundura rwa basketball rukozwe mu mugozi wera ufite imyobo 12, kandi uburebure bwa net ni 400mm kugeza 450mm.
Igihe cyo kohereza: Kanama-09-2024