Chapter XII: Selection of Cleaning Plant

Renovators 179
Hose 182
Pipe Lines 182
Separators 182
Vacuum Producers 183
Control 183
Selection of Appliances for Four Classes of Work 184

CLASS 1.--Plant for Residence or Small Office or Departmental
Building, to be Not More than One-Sweeper Capacity.

CLASS 2.--Large Office or Departmental Building Where Carpet
Cleaning is Important and Pipe Lines are of Reasonable Length.

CLASS 3.--Large Building or Group of Buildings Where Carpet
Cleaning is Important and Long Lines of Piping are Necessary.

CLASS 4.--Large or Small Plant Where Carpet Cleaning is Not
an Important Function of the Cleaning System.

CHAPTER XIII.

TESTS.

Early Methods of Testing 187
Most Rational System of Testing 189
Use of Vacometer 190
Proper Orifice to be Used with Each Class of Plant 191

CHAPTER XIV.

SPECIFICATIONS.

Award of Contracts on Evaluation Basis 193
Determination Basis of Evaluation 193
Specification for Class 1, Plant for Residence or Small Office
Building of One-Sweeper Capacity 194
Specification for Class 2, Plant for Large Office Building Having
Pipe Lines of Moderate Length 204
Specification for Class 3, Large Installation, with Unusually Long
Pipe Lines 209
Specification for Class 4, Large or Small Plant Where Carpet
Cleaning is of Secondary Importance 215
Specification for Class 5, To Give Widest Competition 218