总硬度测定试剂盒
Water Hardness Test Kit
产品介绍：
水源中的硬度是指水中钙镁离子的含量，包括永久硬度和暂时硬度。不同的国家和行业表表达的单位是不同，在国内一般可以表示为mg/L或mmol/L（以碳酸钙计）。对于食品饮料行业，水体的硬度会很大程度上决定了产品的口感，所以在国标中对于食品饮料行业使用的水硬度有严格的要求。通常水中硬度的分析方法是EDTA滴定法，但是需现配一些试剂，不便于现场快速检测，广东环凯微生物科技有限公司开发的水质硬度测试盒基于国标的EDTA滴定法，快速可靠，可以广泛使用于涉水行业。
产品检测范围：4－200mg/L（以碳酸钙计）LR
12-600mg/L（以碳酸钙计）HR
当水样的硬度低于20mg／L时，可以选用软水硬度测试盒
020-32078333-8846
Water Hardness Test Kit
Sources of hardness:
Water hardness originally refers to the precipitation of calcium and magnesium salt to soap. Different countries have different definitions to the hardness such as total hardness, carbonate hardness and non-carbonate hardness. Total hardness refers to the total concentration of calcium and magnesium. Carbonate hardness, which is equal to the hardness of calcium and magnesium combined with carbonate and bicarbonate in the water, is a part of the total hardness. Non-carbonate hardness is also a part of the total hardness. When the content of the calcium ion and magnesium ion in the water exceeds the content of carbonate and bicarbonate, the redundant ions will combine with the chloride ions, sulfate radicals and nitrate radicals in the water, then the non-carbonate hardness forms.
The significance of hardness test
The hardness of the water samples such as boiler water etc. is a very important index. Good controlling of the hardness can not only ensure the boiler safe in operation and improve the efficiency of the boiler, but also prolong the durable years of the boiler and save energy.
Principle
This method equals to the standard method that is EDTA-2Na Titration Method (GB5750-2006). The calcium ions and magnesium ions in water samples combine with EDTA-2Na successively to form chelate. On the end point of the titration, the solution presents the color of the indicator.
Quick and Easy
Operating in accordance with the instructions, users can complete the hardness test independently without specialized training. Five minutes is enough to complete the analysis of one water sample.
Accurate and Reliable
Determination results with this method are in accordance with the results with the standard method. It can be used as an alternative method to the standard method.
The range of the determination:
0.4～20mg/L(as CaCO3)
4-200mg/L(as CaCO3)
12-600mg/L(as CaCO3)
Quantitative Packing
The kit can be used for 50 times. It is small, light and easy to carry.
关键字： 硬度；总硬度；测定；测试；试剂
广东环凯微生物科技有限公司（以下简称“环凯”）是广东省微生物研究所下属的高新技术企业，成立于1993年。公司致力于我国生物安全监测与控制领域产品的研发与生产经营，注册资金500万元,总资产超过5000万元，拥有一支高学历、年轻富有激情的研发、生产及营销团队。团队中博士生导师、具中高级技术职称的员工40多人，博士及硕士研究生近30人，大专以上学历员工占总员工人数的80%。公司通过并严格执行ISO9001：2000质量管理体系。
经过十多年的发展，环凯公司已形成具有自主知识产权的微生物检测产品、高效环保洗涤剂消毒剂、水质理化检测试剂、生物安全实验室装备等四大系列产品，共600多个品种。