BS 2782-4 METH: 451D
1978 Edition, June 30, 1978
Methods of Testing Plastics Part 4: Chemical Properties Method 451D: Determination of Free Ammonia and Ammonium Compounds in Phenol- Formaldehyde Mouldings (Colormetric Comparison Method)
Includes all amendments and changes through Change/Amendment , June 30, 1978
Superseded By: BS EN ISO 120
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