HeizAnIV: Regulation on energy conservation requirements for heating installations and industrial water installations (Heating Installation Regulation of 22 September 1978).
2.
TUV reports for the members of the Technical Control Union (TUV) Bavaria e.V., Munich, No. 1 (February 1978).
3.
The new requirements of the energy conservation law for the planning, construction and maintenance of buildings, energy conservation law, thermal insulation regulation, heating installation regulation; WE-KA-Verlag GmbH & Co., 8901 Kissing.
Jurgen Huter, Cologne. "Determination of the insulation layer thicknesses for hot water plants according to the heating installation regulation ." Zeitschnft Sanitar und Heizungstechnik, 22 (1978).
6.
BMWI Information: "Don't waste your money on heat." Information on the heating installation regulation (December 1978).
7.
DIN 4108. Thermal insulation in high rise buildings. Beuth-Verlag GmbH, Berlin (August 1978).
8.
DIN 52 612, Parts 1 and 2. Determining the thermal conductivity using the plate device. Beuth-Verlag GmbH, Berlin (September 1979).
9.
Cammerer, J.S.Heat and cold insulation in industry. 4th edition, Springer-Verlag, Berlin, Heidelberg, New York (Reprint 1980 ).
10.
VDI 2055. Heat and cold insulation, calculations, guarantees, measurements and test procedures, quality assurance, delivery conditions. VDI Verlag GmbH, Dusseldorf (March 1982).
11.
DIN 52 613. Determining the thermal conductivity using the pipe procedure. Beuth-Verlag GmbH, Berlin (January 1977).
12.
Schmidt, W. , "Properties of hard polyurethane foams for cold insulation," Kunststoffe,53, 7 (1963).
13.
Zehendner, H., "Thermal conductivity measurements on foamed plastics at low temperatures," Kalttechnik, Klimatisierung,19, 1 ( 1967).
14.
DIN 18 421. Thermal insulation work in industrial plantsBeuth-Verlag GmbH, Berlin (February 1961 and September 1976).
