One will feature the ISO 17034 accreditation symbol indicating that the mixture is a Certified Reference Material (CRM):

The other will feature the ISO 17025 accreditation symbol indicating that the mixture is also a Calibrated Gas Mixture (CGM):

One will feature the ISO 17034 accreditation symbol indicating that the mixture is a Certified Reference Material (CRM): | The other will feature the ISO 17025 accreditation symbol indicating that the mixture is also a Calibrated Gas Mixture (CGM): |
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One will feature the ISO 17034 accreditation symbol indicating that the mixture is a Certified Reference Material (CRM): | The other will feature the ISO 17025 accreditation symbol indicating that the mixture is also a Calibrated Gas Mixture (CGM): |
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