大城市要求交付的漂白剂（9-16 wt%NaOCl）含有0.1-0.4 wt%的过量苛性碱、1500 mg/L CIOS、0.5 mg/L铁和0.05 mg/L镍和铜。减少C103生成的重要考虑因素包括:pH值（即过量苛性碱）；稀释（相对于OCl-，分解为二级）；还有温度控制。漂白过滤通过去除使漂白剂变色和浑浊的惰性沉淀物，产生稳定、高质量的漂白剂。使用适当的助滤剂材料过滤可用于沉淀可溶性金属离子物种。该工艺可去除各种铁、镍和铜的亚微米颗粒，并有助于减少泵/管道的涂层和罐底重金属污泥的积聚。 它还降低了漂白剂容器中催化生成氧气和压力增加的可能性。过滤前后对15%漂白剂的分析表明，铁从2-3 ppm减少到0.3 mg/L。镍离子（0.5至0.01 ppm）也出现了同样的减少。包括5个参考文献。

Large municipalities are requiring that delivered bleach (9 to 16 wt% NaOCl) have between 0.1 - 0.4 wt% excess caustic, 1,500 mg/L CIOS-, 0.5 mg/L iron and 0.05 mg/L nickel and copper. Important considerations for minimizing C103- formation include: pH (i.e. excess caustic); dilution (decomposition is 2nd order with respect to OCl-); and, temperature control. Bleach filtering produces stable, high quality bleach by removing inert sediments which impart off-color and turbidity to the bleach. Filtration with the proper filter-aid materials can be used to precipitate soluble metal ion species. This process removes sub-micron particles of the various species of Fe, Ni, and Cu and helps to reduce the coating of pumps/piping and the accumulation of heavy metal sludge on tank bottoms. It also reduces the potential for the catalytic formation of oxygen and pressure build-up in bleach containers. The analysis of 15 % bleach before and after filtration shows a reduction of iron from 2-3 ppm to 0.3 mg/L. The same kind of reduction was observed for nickel ion (0.5 to 0.01 ppm). Includes 5 references.