测量荧光灯内汞含量的样品的制备

[中文适用范围]： 本标准规定了测定汞含量在0@1mg或以上的新型管状荧光灯（包括单端@双端@自镇流和背光用CCFL）中汞含量的样品制备方法。本标准中描述的方法的预期分辨率约为 5%。废灯的汞含量测量被排除在外，因为在灯工作期间，汞逐渐扩散到玻璃壁中并与玻璃材料发生反应。本标准的测试方法不回收扩散到放电管玻璃壁中、与其发生反应或以其他方式不可逆地与放电管玻璃壁结合的汞。本标准不包含测量信息。 IEC 62321 中规定了测量。 [外文原描述]： IEC 62554:2011 specifies sample preparation methods for determining mercury levels in new tubular fluorescent lamps (including single capped, double capped, self-ballasted and CCFL for backlighting) containing 0,1 mg mercury or more. The intended resolution of the methods described in this standard is of the order of 5 %. Mercury level measurement of spent lamps is excluded, as during lamp operation, mercury gradually diffuses into the glass wall and reacts with the glass materials. The test method of this standard does not recover mercury that is diffused into or reacted with or otherwise incorporated irreversibly with the glass wall of discharge tubes. This standard does not contain information on measurement. Measurement is specified in IEC 62321.