Testing item

Testing standard

Specification

USP35-NF30

BP2013

appearance

white or light yellow fine powder

white or light yellow fine powder

identification

meet the specification

meet the specification

solubility

/

meet the specification

PH value

/

meet the specification

chloride, %

/

≤0.2

sulfate, %

/

≤0.3

acid value

196-211

/

sodium content, %

/

7.4-8.5

iodine value,  %

≤4.0

/

acid value%

0.28-1.2

/

loss on drying, %

≤5.0

≤5.0

insoluble in alcohol

meet the specification

/

nickel, ppm

/

≤5

stearic acid content  %

≥40.0

≥40.0

stearic acid&palmitic acid content  %

≥90.0

≥90.0

bacteria, cfu/g

/

≤1000

mould, cfu/g

/

≤100

pathogenic bacterium

/

not detectable