Lachin asye pur tiyo dimansyon tolerans

Konprann diferans ki genyen nan tolerans dimansyon ant estanda domestik ak entènasyonal se kritik lè Smart apwovizyone tiyo asye pur. Estanda tankou ASTM (USA), DIN (Almay), JIS (Japon), ak EN (Ewòp) defini devyasyon ki akseptab nan dyamèt deyò (OD) ak epesè miray, dirèkteman afekte pèfòmans tiyo, konpatibilite, ak pri. Gid sa a konpare espesifikasyon tolerans kle pou ede enjenyè ak pwofesyonèl akizisyon pran desizyon enfòme atravè chenn ekipman pou mondyal la.

 

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Estanda (spesifikasyon)	Gwosè (mm) - nominal dyamèt ekstèn (d)	Devyasyon ki akseptab - òdinè (PA)	Devyasyon ki akseptab - segondè - klas (PC)	Gwosè - epesè miray nominal (yo)	Devyasyon ki akseptab - òdinè (PA)	Devyasyon ki akseptab - segondè - klas (PC)
GB\/T 14976 - 2012	6/10	±0.20	±0.15	Mwens pase oswa egal a 3	±12%	±10%
	>10 -30	±0.30	±0.20	>3	+12.5% -10%	+10.5% -10%
	>30 -50	±0.40	±0.30
	>50 -219	±0.85%D	±0.75%D
	>219	±0.9%D	±0.8%D
GB 13296 - 2013	Mwens pase oswa egal a 25	±0.10		Epesè minimòm miray (smin)	D mwens pase oswa egal a 38: +20%s
	>25 - mwens pase oswa egal a 40	±0.15			D >38: +20%S
	>40 - mwens pase oswa egal a 60	±0.20			D Mwens pase oswa egal a 38: ± 10%s
	>60 - mwens pase oswa egal a 75	±0.30			D >38: ±10%S
	>75 - mwens pase oswa egal a 100	±0.38
	>100 - mwens pase oswa egal a 159	+0.38 -0.64
	>159	±0.5%D
GB 9948 - 2013	Mwens pase oswa egal a 25.4	±0.15	±0.10	Mwens pase oswa egal a 3	±0.3	±0.2
	>25.4 -40	±0.20		>3	±10%S	7.5%S
	>40 -50	±0.25
	>50 -60	±0.30
	>60	±0.75%D	±0.5%D
GB 5310 - 2008	Mwens pase oswa egal a 25.4	±0.15		Mwens pase oswa egal a 3	±0.3	±0.2
	>25.4 -40	±0.20		>3	±10%S	7.5%S
	>40 -50	±0.25
	>50 -60	±0.30
	>60	±0.5%D
GB\/T 21833 - 2008	12 -30	±0.20	±0.15	Mwens pase oswa egal a 3	±14%S	-12%S - +10.5%S
	>30 -50	±0.30	±0.25	>3	-12%S - +10.5%S	±10%S
	>50 -89	±0.5%D	0.4%D
	>89 -114	±0.6%D	0.7%D
	>114 -168	±0.8%D	0.8%D