Vitreous and porcelain enamels. Determination of crack formation temperature in the thermal shock testing of enamels for the chemical industry1 Scope This International Standard specifies a test method for the determination of the crack formation temperature of enamels for the chemical industry by subjecting enamelled steel specimens to thermal shock using cold water. The value of the crack formation temperature measured according to this test method is not valid for the finished component (see annex A). It is a parameter of vitreous and porcelain enamels for comparing the relative quality

De ≤ 50 mm 1 250 MPa ≤ Rm ≤ 1 400 MPa for aerospace applications

BS 2782-1: Method 131B covers molding conditions

Current-limiting fuses

at trace levels except near their sources

for installing pump-turbines in the hydroelectric power plant

BS EN 61040 walks users through test methods that help improve safety and protection from laser radiation

A fixture using the π-network circuit with electrical values as described in IEC 60444-1 for measurement in transmission mode up to 500 MHz

and in determining filter efficiencies and particle size ratings

2 mm ≤ (a or D) ≤ 150 mmwith coarse peripheral grain control

It specifies how to calculate the pressure loss in upstream and downstream lines of pressure relief valves and other pressure relief devices and how to select them

Standard outlines and terminal lead connections are useful for:

When the O-Ring is squeezed between two surfaces