Plastics. Polyols for use in the production of polyurethane. Determination of degree of unsaturation by microtitration Ingestion-build-109673

Plastics. Polyols for use in the production of polyurethane. Determination of degree of unsaturation by microtitration Ingestion-build-1096731 Scope This International Standard specifies a microtitration method to measure the degree of unsaturation in polyether polyols used in the production of polyurethanes. It is based on the reaction of mercuric acetate with double bonds in the polyol. It does not apply to compounds in which the unsaturation is conjugated with carbonyl, carboxyl or nitrile groups. The product being measured must be essentially dry and free of inorganic salts, especially

6 MPa [16 bar1)]:

BS EN 60728-11:2017+A11:2018 supersedes BS EN 60728-11:2017

BS 6019 on contents and presentation for performance standards in building is useful for:

This can help to determine the microbial activity of the wood preservative that can ensure that the preservative is performing as desired

Figure 12 – Bending apparatus

Facilities handling AUS 32

ISO 10320 on ‘geosynthetics on site identification’ is useful for:

BS 1132 on Automatic pipettes is useful for:

cables and their accessories

and polyethylene troughs

BS EN 14989-1:2007 contains:

BS EN 62496-3 is the third part of multi series standard used for Optical circuit boards