Applicable to ammonia solutions of concentrations within the range 25% to 35%, by mass, and carbon dioxide contents of not less than 10 mg/kg. To be read in conjunction with BS 4651-0Cross References:BS 1792BS 3591BS 3978BS 4651:Part 0BS 4651:Part 1Methylated Spirits Regulations 1983Alcoholic Liquors Duties Act 1972