This Part 1 of the revision of BS 1990, extends the range of species for which data are available, specifies water-borne preservative treatments in addition to pressure creosoting, gives a standard layout of markings and a test method for poles.Cross References:BS 144BS 565BS 913BS 4072BS 4261BS 5374BS 5666:Part 2BS 6100:Section 4.1ISO 3130ISO 3131ASTM D 1036