如果企业客服不在线,也可拨打400电话联系。或者发布求购信息
缓冲液 (citric acid/sodium hydroxide/hydrogen chloride), traceable to SRM from NIST and PTB pH 2.00 (20°C) CertiPUR®
缓冲液 (di-sodium hydrogen phosphate/potassium dihydrogen phosphate), traceable to SRM from NIST and PTB pH 7.00 (20°C) CertiPUR®
缓冲液 (potassium hydrogen phthalate), traceable to SRM from NIST and PTB pH 4.01 (25°C) CertiPUR®
认证二级缓冲液标准品 potassium hydrogen phthalate, directly traceable to primary SRM from NIST/PTB pH(S) = 4.00₅ (25°C) CertiPUR®
pH缓冲液标准DIN 19266值(pH 10.012)
pH缓冲液-25℃(pH 3.56 ± 0.01)
缓冲液 (citric acid/sodium hydroxide), traceable to SRM from NIST and PTB pH 6.00 (20°C) CertiPUR®
醋酸-醋酸钾缓冲液
pH缓冲溶液,pH 7.00±0.02 (20°C) 可溯源至NIST
缓冲剂 (Disodium hydrogen phosphate/Sodium hydroxide) traceable to SRM from NIST und PTB pH 12.00 (25°C) CertiPUR®