National Sharing Platform for Reference Materials
Sponsor:National Institute of Metrology, China

Medium Test Dust (MTD) with Narrow Distribution Particle Size Certified Reference Material

Code 数量平均粒径   µm 数量平均粒径   μm 数量平均粒径   μm 中值粒径   μm 中值粒径   μm
Value Expanded uncertainty(k=2)µm Value Expanded uncertainty(k=2)µm Value Expanded uncertainty(k=2)μm Value Expanded uncertainty(k=2)µm Value Expanded uncertainty(k=2)μm
GBW12041 4.37 0.09 4.36 0.09
GBW12042 7.73 0.10 7.66 0.10
GBW12043 18.03 0.28 17.98 0.28
GBW12044 29.15 0.43 29.16 0.43
GBW12045 37.27 0.39 37.02 0.39
GBW12046 50.75 0.69 50.62 0.69
GBW12047 63.62 0.78 63.12 0.78
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