[MW:27132] diffusible hydrogen level in filler wire.

Dear experts,

One of our client specification require filler fire welding consumables hydrogen level less than 4ml/100g, but i could not found any welding consumable manufacturing company certified filler wire for hydrogen diffusible level, i checked many batch certificate of different manufacturers.

My questions is ;  

Any manufacturer is providing the filler wire with certification of diffusible hydrogen level 

Is it really required to mention as per code.

Thanks in advance.

Manoj

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