Sulfuric Acid, Mono-C10-16-alkyl Esters, Ammonium Salts
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ISO 894 Surface active agents -- Technical sodium primary alkylsulphates -- Methods of analysis
(5), pH
GB/T 6368 Surface active agents - Determination of pH of aqueous solution - Potentiometric method
ISO 4316 Surface active agents -- Determination of pH of aqueous solutions -- Potentiometric method
(6), Color (Hazen)
GB/T 3143 Color determination method of liquid chemicals(Hazen unit;Platinum-cobalt scale)
ISO 2211 Liquid chemical products -- Measurement of colour in Hazen units (platinum-cobalt scale)
(7), Fe content
GB/T 3049 Chemical products for industrial use - General method for determination of iron content – 1,10-Phenanthroline spectrophotometric method
ISO 6685 Chemical products for industrial use -- General method for determination of iron content -- 1,10-Phenanthroline spectrophotometric method
(8), Density
GB/T 4472 Determination of density and relative density for chemical products
ISO 758 Liquid chemical products for industrial use -- Determination of density at 20 degrees C
2. Hazardous substances indexes
Item
Hazardous substances indexes
68 type
28 type
25 type
Heavy metals (as Pb), mg/Kg, ≤
20
20
20
As, mg/Kg, ≤
3
3
3
Test Methods
(1), Heavy metals (as Pb)
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30799 The test method of food detergents - Determination of heavy metals
(2), As
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30797 The test method of food detergents - Determination of total arsenic
3. Further explanation
(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.
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