JG 221-2007 in English

本标准规定了以铜管铝串片为散热件的对流散热器的术语和定义、型号与标记、要求、试验方法、检验规则、标志、包装、运输与贮存。
本标准适用于工业与民用建筑中以热水为热媒的散热器。其热媒温度不高于95摄氏度，热水pH值应在7~12，氯离子硫酸根离子含量分别不大于100mg/L、其他水质指标应符合GB1576、HG/T3729的规定。

Scope

This standard specifies the terms and definitions, models and markings, requirements, test methods, inspection rules, marking, packaging, transportation and storage of convection radiators with copper tubes and aluminum strands as heat dissipation elements (hereinafter referred to as convection radiators). This standard applies to convection radiators using hot water as the heating medium in industrial and civil buildings. The working pressure of the convection radiator is 1.0 MP, and the temperature of the heat medium is not higher than 95 ℃; the pH of the heat medium is pH=7~12, and the chloride ions (Cl) and sulfate (S0) are not more than 100 mg/L respectively. Other indicators should be based on the water supply situation of the heating system and comply with the provisions on water quality of the heating system in the standards GB 1576 and HG/T 3729 respectively.