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National Sharing Platform for Reference Materials
Sponsor：National Institute of Metrology, China
GBW11111 Coal
50g
50g

$0.00

Status Now selling
Delivery Normal
Expire Date 2024-06-30

$0.00

Status Offshelf
Delivery Normal
Expire Date
Quantity:
- +

CodeGBW11111
DescriptionCoal
Certificate
NMI Service Identifier
Measurement Service Sub-Category
Certified Value Certified Uncertainty Unit Memo
hydrogen 4.49 0.12 Mass fraction (10 -2 )
ash 15.07 0.18 Mass fraction (10 -2 )
calorific value 29.10 0.12 heat value(MJ/kg)
真相对密度（20oC) 1.44 0.02 Standard values
volatile 32.65 0.28 Mass fraction (10 -2 )
carbon 70.89 0.36 Mass fraction (10 -2 )
nitrogen 1.25 0.06 Mass fraction (10 -2 )
total sulfur 1.37 0.06 Mass fraction (10 -2 )
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