ag·九游会(中国)官方网站

ag·九游会(中国)官方网站

formaldehyde


GB / T 9009-2011

Item
Index
50% grade
44% grade
37% grade
Top grade
Qualified product
Top grade
Qualified product
Top grade
Qualified product
Density p 20 (g/cm3)
1.147-1.152
 
1.125-1.135
 
1.075-1.114
 
Formaldehyde ω /%
49.7-50.5
49-50.5
43.5-44.4
42.5-44.4
37.0-37.4
36.5-37.4
Acid (as HCOOH) ω /% ≤
0.05
0.07
0.02
0.05
0.02
0.05
Chroma, Hazzen unit (platinum-cobalt color number) ≤
10
15
10
15
10
-
Iron ω /% ≤
0.0001
0.0010
0.0001
0.0010
0.0001
0.0005
Methanol ω /% ≤
1.5
negotiable
2.0
negotiable
negotiable

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