Appearance
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Light yellow to yellow free flowing powder
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Solubility
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Freely soluble in distilled /purified water , insoluble in alcohol
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Clarity of solution
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1% w/v aqueous solution is clear without haziness after autoclaving at 15 lbs pressure (at 121°C) for 15 mins
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pH (2% w/v solution in water)
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6.20 - 7.20
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Total nitrogen (N)
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Min 12.0%
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Amino nitrogen
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Min 3.0%
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Sodium Chloride (by AgNO3 titration)
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Max 6.0%
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Loss on drying
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Max 6.0%
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Residue on ignition
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Max 17.0%
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Microbial Limits
|
|
Total aerobic plate count
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Max 2000 CFU/gm
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Total yeast and mould conut
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Max 100 CFU/gm
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Test for pathogens
|
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E.coli.
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Negative in 10 gm of sample
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Salmonella species
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Negative in 10 gms of sample
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Pseudomonas aeruginosa
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Negative in 10 gms of sample
|
Staphylococcus aureus
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Negative in 10 gms of sample
|