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Homepage>BS Standards>83 RUBBER AND PLASTICS INDUSTRIES>83.040 Raw materials for rubber and plastics>83.040.10 Latex and raw rubber>BS 6057-1.2:1990 Rubber latices. Specification and coding Specification for evaporated, preserved natural rubber latices
immediate downloadReleased: 1990-08-31
BS 6057-1.2:1990 Rubber latices. Specification and coding Specification for evaporated, preserved natural rubber latices

BS 6057-1.2:1990

Rubber latices. Specification and coding Specification for evaporated, preserved natural rubber latices

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Standard number:BS 6057-1.2:1990
Pages:8
Released:1990-08-31
ISBN:0 580 18862 0
Status:Standard
DESCRIPTION

BS 6057-1.2:1990


This standard BS 6057-1.2:1990 Rubber latices. Specification and coding is classified in these ICS categories:
  • 83.040.10 Latex and raw rubber

This International Standard gives specifications for natural rubber latex concentrate which has been concentrated by evaporation. It does not apply to natural rubber latex concentrates which have been concentrated by centrifuging or creaming, or to latices from natural sources other than Hevea brasiliensis, or to compounded latex or vulcanized latex.

This International Standard covers requirements for evaporated natural rubber latex concentrates of the following types:

NR latex, type HA evaporated: Evaporated latex concentrate preserved with ammonia only or with ammonia together with other preservative(s), with an alkalinity of at least 0,60 % (m/m) with respect to the latex.

NR latex, type KHS evaporated: Evaporated latex concentrate preserved with potassium hydroxide and having a nominal total solids content of 73 % (m/m).

NR latex, type KLS evaporated: Evaporated latex concentrate preserved with potassium hydroxide and having a nominal total solids content of 68 % (m/m).