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About product and suppliers:
        Alibaba.com offers 679 ph scale products. About 11% of these are weighing scales. 

A wide variety of ph scale options are available to you, such as floor scale, pocket scale, and bench scale. You can also choose from paid samples, free samples. 

There are 582 ph scale suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Philippines, and Italy, which supply 86%, 6%, and 3% of ph scale respectively. 

Ph scale products are most popular in North America, Mid East, and South America. 

You can ensure product safety by selecting from certified suppliers, including 159 with ISO9001, 156 with Other, and 77 with ISO13485 certification.