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Colour Mark of Gas Cylinder 2010-7-26 8:23:27    HOT:2058

Table of Colour Mark of Gas Cylinder(GB7144-86) for GAN, H2, GOX, NH2.

Item

Title of Medium 

Chemical Formulation 

Colour of Cylinder 

Letter Sample 

Colour of Letter 

Colour Annulus

1

Nitrogen 

N2

Black 

N2 

Light Yellow 

P=19.6(200)Light White Annulus as the first phase
P=19.6(200)Light white annulus as the second phase

2

Oxygen 

O2

Light Phthaleins Blue

O2 

Black 

3

Hydrogen

H2

Light Green 

H2 

Light Red 

P=19.6(200)Light yellow annulus as the first phase
P=29.4(300)Light yellow annulus as the second phase

4

Ammonia 

NH2

Light Yellow

NH2 

Black 

 

 

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