Page 123 - ELT_15th July 2020_Vol 373_Part 2

2020 ] FOREIGN TRADE POLICY E33

1 2 3 4
(177°C); or ± 15% of the centre
b. Ceramic materials frequency of the in-
providing more cident energy, and
than 20% echo not capable of with-
compared with standing tempera-
metal over a tures exceeding 800
bandwidth ex- K (527°C);
ceeding ± 15% of 2. Tensile strength less than
the centre fre- 7 × 10 6 N/m 2 ; and
quency of the in- 3. Compressive strength less
cident energy, than 14 × 10 6 N/m 2 ;
and not capable of d. Planar absorbers made of sin-
withstanding tered ferrite, having all of the fol-
temperatures ex- lowing :
ceeding 800 K 1. A specific gravity exceed-
(527°C); ing 4.4; and
2. Tensile strength less 2. A maximum operating
than 7 × 10 6 N/m 2 ; and temperature of 548 K
3. Compressive strength (275°C) or less;
less than 14 × 10 6 e. Planar absorbers having no
N/m 2 ; magnetic loss and fabricated
d. Planar absorbers made of from ‘open-cell foam’ plastic ma-
sintered ferrite, having all of terial with a density of 0.15
the following : grams/cm 3 or less.
1. A specific gravity ex- Technical Note
ceeding 4.4; and ‘Open-cell foams’ are flexible and po-
2. A maximum operating rous materials, having an inner struc-
temperature of 548 K ture open to the atmosphere. ‘Open-
(275°C) or less; cell foams’ are also known as reticulat-
ed foams.
Note 2 : Nothing in Note 1 releases
magnetic materials to provide absorp-
tion when contained in paint.
21. Technical 8C102 8C102
Note Metal alloys, metal alloy powder Metal alloys, metal alloy powder
changed in and alloyed materials, as and alloyed materials, as follows :
8C102 follows : (See Commodity Identification Note 1
(See Commodity Identification Note of SCOMET list)
1 of SCOMET list) Note 8C102 does not apply to metal
Note 8C102 does not apply to met- alloys, metal alloy powder and alloyed
al alloys, metal alloy powder and materials, specially formulated for
alloyed materials, specially formu- coating purposes.
lated for coating purposes. Technical Notes
Technical Notes 1. The metal alloys in 8C102 are
1. The metal alloys in 8C102 are those containing a higher percentage
those containing a higher percent- by weight of the stated metal than of
age by weight of the stated metal any other element.
than of any other element. 2. ‘Stress-rupture life’ should be
2. ‘Stress-rupture life’ should be measured in accordance with ASTM

EXCISE LAW TIMES  15th July 2020  123