定价： 1320元 / 折扣价： 1122 元

定价： 1001元 / 折扣价： 851 元

定价： 819元 / 折扣价： 697 元

定价： 455元 / 折扣价： 387 元

定价： 364元 / 折扣价： 310 元

1 Scope This part of ISO 9170 specifies requirements for terminal units intended for use in medical gas pipeline systems in accordance with ISO 7396-1, for use with the following services: - oxygen; - nitrous oxide; - air for breathing; - carbon d

定价： 728元 / 折扣价： 619 元

定价： 1365元 / 折扣价： 1161 元

1 Scope and object This clause of the General Standard applies, except as follows: 1.1 Scope Addition: This Particular Standard specifies the safety requirements for VENTILATORS, as defined in 2.1.125, intended for use in critical care settings. Co

定价： 819元 / 折扣价： 697 元

定价： 1047元 / 折扣价： 890 元

1. Scope This clause of Part 1 is applicable except as follows: 1.1 Replacement: This standard applies to rechargeable battery-powered motor-o perated tooth-brushes for household and similar purposes, and to their charging and battery assemblies

定价： 592元 / 折扣价： 504 元

This standard includes Update #2. 1.1 Scope This section of Part 2 of IEC Publication 598 specifies requirements for fixed general purpose luminaires for use with tungsten filament, tubular fluorescent and other discharge lamps on supply voltages n

定价： 592元 / 折扣价： 504 元

CSA Preface This is the second edition of CAN/CSA-E60335-2-23, Household and similar electrical appliances - Safety - Part 2-23: Particular requirements for appliances for skin or hair care, which is an adoption without modification of the identically

定价： 728元 / 折扣价： 619 元

1. Scope This clause of part 1 is replaced by: This standard deals with the safety of electrically operated commercial griddles and griddle grills not intended for household use, their rated voltage being not more than 250 V for single-phase applian

定价： 455元 / 折扣价： 387 元

1 Scope This clause of part 1 is replaced by: This standard deals with the safety of electric washing machines for household and similar purposes, intended for washing clothes and textiles, their rated voltage being not more than 250 V for single-phase

定价： 410元 / 折扣价： 349 元

1. Scope This clause of Part 1 is replaced as follows: 1.1 This standard applies to automatic electrical pressure sensing controls with a minimum gauge pressure rating of -60 kPa and a maximum gauge pressure rating of 4,2 MPa, for use in, on or in

定价： 1001元 / 折扣价： 851 元