scope:

This standard specifies the technical requirements for a high sensitivity general purpose safety test set, safe to use in the presence of explosives, for measuring the resistance of electrically initiated explosive devices (EED)(wire bridge and conducting composition types) either individually or connected in circuit and for indicating the presence of any spurious a.c/d.c voitage that may appear in a firing circuit.

Accuracy shall be maintained over a wide temperature and humidity range

The equipment shall be safe to use in the presence of strong electro-magnetic and/or electrostatic fields, providing that appropriate connectors and associated leads are used.

It shall be possible at any time to prove that the circuit under test is connected and That the test set is serviceable, without disturbance of the connections.