NO

Index name

Polymerization Grade Isoprene

Chemical Grade Isoprene

Test method

1

      Appearance

colorless or light color transparent without mechanical impurities

2

Hazen     ≤

              30

           100

GB/T3143-1982

3

Assay, % (m/m) ≥

99.5

98.5

Q/SH3045 039-2008

4

Isoprene dimer, % (m/m) ≤

0.20

----

5

Alkane and mono olefin, % (m/m) 

           0.50

-----

6

cyclopentadiene ,% mg/kg≤

0.00010

-----

7

Alkyne, % mg/kg≤

0.0050

-----

8

piperyene,%  mg/kg≤

0.0080

------

9

MDF1, % mg/kg≤

0.0010

-----

10

S, % mg/kg≤

       0.00050

-----

GB/T6324-2008or SH/T0689-2000

11

carbonyl compound,% mg/kg≤

0.0010

-----

Q/SH3045 039-2008

12

Moisture ,% mg/kg≤

0.020

          0.030

GB/T6283-2008

13

TBC, % mg/kg≤

0.0040-0.0200

-----

GB/T6020-2008

Storage:Sealed, kept in cool and ventilating place, keep temperature below 15°C. Avoid direct light, fire and heat. Do not expose to air, the package should be filled with nitrogen. Do not mix with oxidant and acid.