§˂25 ppb (0.025 mg / kg) for the sum of C9-C14 PFCAs and their salts, §˂260 ppb (0.260 mg / kg) for the sum of C9-C14 PFCA related substances. 条款中规定的浓度(自2023年2月25日起生效)要求如下: §C9-C14全氟羧酸及其盐类总浓度˂25 ppb(0.025 mg/kg), §C9-C14全氟羧...