LAMPIRAN A
PERHITUNGAN DATA PENGUJIAN
1. Menghitung densitas sampel
Densitas
Keterangan:
ρ = kerapatan / densitas (gr.cm-3)
m = massa (gr)
V = volume (cm3) - Sampel I
m = 4,37 gr V = 5,5 cm3
Densitas , gr
, cm3 , gr. cm - Sampel II
m = 4,35 gr V = 5,5 cm3
Densitas , gr
, cm3 , gr. cm - Sampel III
m = 4,32 gr V = 5,5 cm3
Densitas , gr
, cm3 , gr. cm - Sampel IV
m = 4,31 gr V = 5,5 cm3
Densitas , gr
, cm3 , gr. cm
- Sampel V m = 4,30 gr V = 5,5 cm3
Densitas , gr
, cm3 , gr. cm - Sampel VI
V = 5,5 cm3
Densitas , gr
, cm3 , gr. cm
2. Menghitung daya serap air (porositas) sampel
DSA %
Keterangan:
DSA = daya serap air (%) mb = massa basah (gr) mk = massa kering (gr)
- Sampel I mb = 4,29 gr mk = 4,28 gr
DSA , ,
, % , %
- Sampel II mb = 4,32 gr mk = 4,30 gr
DSA , ,
, % , %
- Sampel III mb = 4,35 gr mk = 4,31 gr
DSA , ,
, % , %
- Sampel IV mb = 4,37 gr mk = 4,32 gr
DSA , ,
, % , %
- Sampel V mb = 4,41 gr mk = 4,35 gr
DSA , ,
, % , %
DSA , ,
, % , %
3. Menghitung kekuatan lentur
Keterangan:
KL = Kuat Lentur (MPa)
P = Load / Beban (N) L = Jarak Span (m) b = Lebar Sampel (m) h = Tebal Sampel (m)
- Sampel I
P = 0,55132 kgf = 0,55132 kgf x 9,8 ms-2 = 5,40297 N L = 10,5 cm = 105 x 10-3 m
b = 15 mm = 15 x 10-3 m h = 2,5 mm = 2,5 x 10-3 m
, ,
, ,
, ,
- Sampel II
P = 0,6493 kgf = 0,6493 kgf x 9,8 ms-2 = 6,36314 N L = 10,5 cm = 105 x 10-3 m
b = 15 mm = 15 x 10-3 m h = 2,4 mm = 2,4 x 10-3 m
, ,
, ,
, ,
- Sampel III
P = 0,800557 kgf = 0,800557 kgf x 9,8 ms-2 = 7,84546 N L = 10,5 cm = 105 x 10-3 m
b = 15 mm = 15 x 10-3 m
, ,
, ,
, ,
- Sampel IV
P = 0,811923 kgf = 0,811923 kgf x 9,8 ms-2 = 7,95684 N L = 10,5 cm = 105 x 10-3 m
b = 15 mm = 15 x 10-3 m h = 2,6 mm = 2,6 x 10-3 m
, ,
, ,
, ,
- Sampel V
P = 0,8747477 kgf = 0,8747477 kgf x 9,8 ms-2 = 8,572527 N L = 10,5 cm = 105 x 10-3 m
b = 15 mm = 15 x 10-3 m h = 2,4 mm = 2,4 x 10-3 m
, ,
, ,
, ,
- Sampel VI
P = 1,1678412 kgf = 1,1678412 kgf x 9,8 ms-2 = 11,444844 N L = 10,5 cm = 105 x 10-3 m
b = 15 mm = 15 x 10-3 m h = 2,4 mm = 2,4 x 10-3 m
, ,
, ,
, ,
Keterangan:
Is = Kuat Impak (J.m-2) E = Energi Serap (J) A = Luas Permukaan (m2) - Sampel I
E = 55,144 x 10-3 J
A = W x T = 15 mm x 2,5 mm = 37,5 mm2 I ,, x x mJ , J. m
- Sampel II
E = 119,710 x 10-3 J
A = W x T = 15 mm x 2,6 mm = 39 mm2
I , x x m J , J. m
- Sampel III
E = 139,759 x 10-3 J
A = W x T = 15 mm x 2,5 mm = 37,5 mm2
I , x , x m J , J. m
- Sampel IV
E = 142,504 x 10-3 J
A = W x T = 15 mm x 2,5 mm = 37,5 mm2
I , x , x m J , J. m
- Sampel V
E = 151,110 x 10-3 J
A = W x T = 15 mm x 2,4 mm = 36 mm2
I , x x m J , J. m
- Sampel VI
E = 200,557 10-3 J
A = W x T = 15 mm x 2,6 mm = 39 mm2
I , x x m J , J. m
5. Menghitung kekuatan tarik sampel
Keterangan:
σ = Kuat Tarik (MPa)
F = Gaya (N)
A = Luas Permukaan (m2) - Sampel I
F = load x a = 43,780 kgf x 9,8 ms-2 = 429,048 N A = W x T = 6 mm x 2,4 mm = 15,6 mm2
σ , N
, x m MPa
- Sampel II
F = load x a = 43,603 kgf x 9,8 ms-2 = 427,305 N A = W x T = 6 mm x 2,5 mm = 15 mm2
σ x , N m , MPa
- Sampel III
F = load x a = 34,871 kgf x 9,8 ms-2 = 341,734 N A = W x T = 6 mm x 2,6 mm = 15,6 mm2
σ , N
, x m , MPa
- Sampel IV
F = load x a = 25,775 kgf x 9,8 ms-2 = 252,595 N A = W x T = 6 mm x 2,6 mm = 15,6 mm2
σ , N
, x m , MPa
- Sampel V
F = load x a = 19,566 kgf x 9,8 ms-2 = 191,750 N A = W x T = 6 mm x 2,4 mm = 14,4 mm2
σ , N
- Sampel VI
F = load x a = 8,267 kgf x 9,8 ms-2 = 81,015 N A = W x T = 6 mm x 2,5 mm = 15 mm2
σ , N
x m , MPa
LAMPIRAN B
GAMBAR PERALATAN DAN BAHAN
Aluminium Foil
Jangka Sorong
Wolpert
Perendaman Sampel
Shave Shaker
Ayakan
Cetakan
Lemari Asam
Alat Kempa Panas
Serat Sabut Kelapa
KTK
Tissue
Termometer
Kertas Pasir
Spatula
Xylene
Mortal
Universal Testing Machine
Sampel
Rangkaian Alat
Luas Tanaman dan Produksi Tanaman Kopi Arabika di Sumatera
Utara Menurut Kabupaten Tahun 2011
Sumber: BPS Sumatera Utara
Kabupatan/Kota
Productive Productive Unproductive
(1) (2) (3) (4) (5) (6)
1. Nias - - - - -
2. Mandailing Natal 759,32 956,73 25,67 1.741,72 1.142,77
3. Tapanuli Selatan - - - - -
4. Tapanuli Tengah - - - - -
5. Tapanuli Utara 3.943,50 9.512,75 300,00 13.756,25 10.142,39
6. Toba Samosir 536,96 1.897,34 194,83 2.629,13 2.480,96
7. Labuhanbatu - - - - -
8. Asahan - - - - -
9. Simalungun 1.211,24 5.655,64 200,78 7.067,66 8.487,45
10. Dairi 2.324,00 7.936,50 370,00 10.630,50 10.131,80
11. Karo 614,00 5.040,00 188,00 5.842,00 5.841,68
12. Deli Serdang 123,00 531,20 11,00 665,20 530,38
13. Langkat - - - - -
14. Nias Selatan - - - - -
15. Humbang Hasundutan 3.097,80 7.174,50 1.126,50 11.398,80 5.815,65
16. Pakpak Bharat 153,00 1.158,00 60,00 1.371,00 1.146,50
17. Samosir 1.137,16 2.580,05 305,70 4.022,91 2.630,46
18. Serdang Bedagai - - - - -
Sumatera Utara 2011 13.904,48 42.452,71 2.787,48 59.144,67 48.354,26
Sumatera Utara 2010 14.198,34 41.003,45 2.519,27 57.721,06 47.755,11
Sumatera Utara 2009 14.924,37 39.421,55 2.795,97 57.141,89 45.482,81
Luas Tanaman dan Produksi Kelapa di Provinsi Sumatera Utara
Menurut Kabupaten 2011 (BPS)
Sumber: BPS Sumatera Utara
Kabupatan/Kota
Productive Productive Unproductive Total
(1) (2) (3) (4) (5) (6)
8. Asahan 1561,00 22424,00 468,50 24453,50 21258,02
9. Simalungun 358,20 2170,09 419,62 2947,91 1901,15
10. Dairi 45,00 508,00 14,00 567,00 374,90
11. Karo 103,00 1036,00 81,00 1220,00 882,98
12. Deli Serdang 995,05 2866,20 96,00 3957,25 3013,28
13. Langkat 718,00 3043,20 - 3761,20 3539,24
14. Nias Selatan 3069,00 12399,0 3840,00 19308,00 13669,00
15. Humbang Hasundutan 147,50 144,25 32,50 324,25 154,50
Sumatera Utara 2011 9367,77 91554,00 9184,04 110105,81 91629,89
Sumatera Utara 2010 9346,21 88751,62 10143,86 108241,69 103606,06
Sumatera Utara 2009 9285,41 91870,42 9602,06 110757,89 93087,64
Sumatera Utara 2008 8633,93 99897,59 5988,33 114519,85 96823,50
