Analysis of water used in boiler and cooling system—Determination of nitrite
NEQ ISO 6777:1984
全国化学标准化技术委员会水处理剂分会(SAC/TC 63/SC 5)
本标准规定了原水、锅炉用水和冷却水中亚硝酸盐含量的测定方法。
本标准中分子吸收分光光度法适用于原水、锅炉用水和冷却水中亚硝酸盐含量为0 mg/L～0.25 mg/L的测定；紫外分光光度法适用于原水、锅炉用水和冷却水中亚硝酸盐含量为0 mg/L～25 mg/L的测定。
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