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"New National Standard" test method for natural stone, name terminology, uniform number, mirror gloss of architectural facing materials, natural sheet, natural granite, natural sandstone, natural limestone, natural stone for bathroom, adhesive for facing stone, etc. They are all strictly defined. In particular, the internal radiation index and external exposure index of stone radioactivity are defined in detail. The new standard will promote the standardization of production in the stone industry while protecting consumers from radiation damage.
The new national standard of natural stone promulgated the standard stone radiation index
On April 14th, it was learned from the Tianjin Municipal Quality Supervision Bureau that the AQSIQ and the National Standards Committee jointly issued ten “new national standards†for natural stone, the names, terms, specifications, adhesives and physical and chemical properties of natural stone. It has been clearly stipulated, and the problem of radiation pollution of natural stone, which is generally concerned by consumers, has been strictly regulated.