Mono Propylene Glycol USP/IND

Test Description

Specification Limits

Min. Max.

Unit  of Measure

Test  Method

Propylene Glycol, on a dry basis

99.5

%(w/w)

HOC 0540

Acidity as acetic acid

0.002

%(w/w)

HOC 0210

Chlorides

0.5

ppm

HOC 0221

Colour, Pt-Co

10

APHA Colour

HOC 0641

Heavy Metals as Pb

5

ppm

HOC 0274

Iron

0.5

ppm

HOC 0290

Water

0.2

%(w/w)

HOC 0316

Arsenic as As

1

HOC 0242

Distillation @ 760 mm Hg

Initial Boiling Point

186

^oC

HOC 0154

Drying Point

189

^oC

HOC 0154

Residue on Ignition

0

0.005

%(w/w)

HOC 0140

Specific Gravity@20/20 ^oC

1.0377

1.0389

HOC 0132

Specific Gravity@25/25 ^oC

1.0352

1.0364

HOC 0132

Sulphate

0

0.006

%(w/w)

HOC 0225