Gray-banded Electrode

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I'm confused about an electrode I received.In kit AK-2 sold by CK Worldwide, they claim that a gray band means 2% ceriated.However, when I do a general google search for 'tungsten color ceriated', I find that2% ceriated should have an orange band, and a gray band means 'rare earth'.  Whateverthat is.  Why is CK Worldwide using non-standard banding?
Reply:Originally Posted by ericmI'm confused about an electrode I received.In kit AK-2 sold by CK Worldwide, they claim that a gray band means 2% ceriated.However, when I do a general google search for 'tungsten color ceriated', I find that2% ceriated should have an orange band, and a gray band means 'rare earth'.  Whateverthat is.  Why is CK Worldwide using non-standard banding?
Reply:You would think with world trade getting to be what it is. they would standardize  things, Like metric and English,  I had it.....one or the other and i prefer metric, it's much ez'er once you get used to it. Yes i live in the USA.  Like  ISO 9000 I think it's called.