BS 4130:1984

What is BS 4130- Specification of sodium hydroxide about?

BS 4130 contains requirements for technical grades of sodium hydroxide in aqueous solution and solid form, to meet the needs of government departments and other users.

BS 4130 designates two types of material corresponding to the two main manufacturing processes. Type 1 is usually manufactured in mercury cathode electrolytic brine cells; type 3 is manufactured in diaphragm electrolytic brine cells.

Note: It does not apply to sodium hydroxide for medical or pharmaceutical use, which is covered by the British Pharmacopoeia, or sodium hydroxide for photographic use, requirements for which are specified in BS 3308.

Who is BS 4130- Specification of sodium hydroxide for?

BS 4130 on the specification of sodium hydroxide is useful for:

• Chemical manufacturers/suppliers
• Detergent manufacturers
• Soap manufacturers
• Man-made fibre manufacturers
• Quality control personnel

Why should you use BS 4130- Specification of sodium hydroxide?

Sodium hydroxide is used to produce soaps, rayon, paper, products that explode, dyes, and petroleum products. It can also be used in tasks such as processing cotton fabric, metal cleaning and processing, oxide coating, electroplating, and electrolytic extraction.

BS 4130 provides you with material requirements for technical grades of sodium hydroxide in aqueous solution and solid form for general industrial purposes, including packaging requirements. BS 4130 helps you produce high-quality sodium hydroxide.

What’s changed since the last update?

BS 4130:1984 supersedes BS 4130:1967, which is withdrawn. BS 4130:1984 includes some technical changes with respect to BS 4130:1967. These include:

• The requirements for material made by the lime-soda process, designated type 2, which is no longer of commercial significance in the UK, have been omitted.
• An additional form of solid material, designated “pearl”, has been included in the description.
• The test methods are not appended to this revision but are published as Parts of BS 6075. In preparing BS 6075 the opportunity has been taken to implement those test methods prepared by Technical Committee 47, Chemistry”, of the International Organization for Standardization (ISO) which have been prepared as a result of international collaboration in which UK experts have actively participated.
• Units have been altered where necessary to conform with the expression of results in the associated revised test methods.