DIN 1944:1968-10

1 Extent and scope
      1.1 Extent of this Code
      1.2 Scope of this Code
2 Terms, symbols, units
3 Technical guarantees
      3.1 General definitions
             3.1.1 Supply contract
             3.1.2 Object of guarantee
             3.1.3 Operational data
             3.1.4 Driving machine
      3.2 Main guarantees
             3.2.1 Scope of main guarantees
             3.2.2 Guarantees of pump delivery and
                      efficiency, accuracy classes
             3.2.3 Guarantees of pump delivery and
                      efficiency of accuracy classes I, II
                      and III
             3.2.4 Guarantees and acceptance test
      3.3 Fulfilment of main guarantees
             3.3.1 Delivery
             3.3.2 Efficiency
      3.4 Additional guarantees
             3.4.1 Permissible net positive suction head
                      (permissible net positive suction
                      energy)
             3.4.2 Stable head-discharge-characteristic
             3.4.3 No-discharge pump head (no-discharge
                      specific pump energy)
             3.4.4 No-discharge pump input
             3.4.5 Minimum pump head (minimum specific
                      pump energy) or established in the
                      contract
             3.4.6 Reverse runaway speed
             3.4.7 Extent of cavitation erosion
             3.4.8 Leakage loss of shaft sealing
             3.4.9 Sound level of pump
4 Test conditions
      4.1 Location and date of tests
             4.1.1 Location of test
             4.1.2 Date of tests
      4.2 Permissible deviations during the acceptance
             test from values established in the contract
             4.2.1 Fluctuations of average test conditions
             4.2.2 Deviations of average test conditions
                      from guaranteed values
             4.2.3 Keeping of net positive suction head
                      (net positive suction energy)
      4.3 Test costs
      4.4 Repetition of tests
5 Test procedure
      5.1 Test personnel
             5.1.1 Requirements
             5.1.2 Chief of tests
      5.2 Preparation of tests
             5.2.1 Relevant data
             5.2.2 Test program
             5.2.3 Instruments
      5.3 Measurement
             5.3.1 Preliminary tests
             5.3.2 Test point adjustment
             5.3.3 Number of measuring points
             5.3.4 Readings
             5.3.5 Observation sheets
             5.3.6 Computation
6 Computation of results
      6.1 Measured values
             6.1.1 Computation of average values
             6.1.2 Measured quantities needed for the
                      computation of results
      6.2 Reference conversion to guaranteed conditions
             6.2.1 Purpose
             6.2.2 Reference conversion to guaranteed speed