Rubber and rubber latices. Determination of manganese content. Sodium periodate photometric methods1 Scope This International Standard specifies photometric methods for the determination of manganese, after oxidation with sodium periodate, in rubbers and rubber latices. Both methods contain provisions for analysis of chlorine containing rubber. Clause 3 specifies a method for compounded or vulcanized rubbers which is not affected by heavy loadings of fillers such as synthetic and natural silicates or calcium carbonates in various forms, or by the

requirements for high-speed trains and for certain types of OTMs

1 (Guidance values for silicon content) have been modified

and their mixtures at atmospheric pressure for temperatures up to 200 °C

— lowering the risk of starting a fire both during operation and as a result of technical defect and/or malfunction of the electrical equipment

NOTE 3: It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects

b) the addition of annex D

Safety requirement

BS 4215-2 applies only to straight spot welding electrodes

use or recycling of aluminium products

It is not applicable in the case of systems for the control of industrial or other special process environments

This part of IEC 61375 may be additionally applicable to closed trains and multiple unit trains when so agreed between purchaser and supplier

Manufacturing/product design industries