Judul: Laju Pertumbuhan dan Kualitas Wol Domba Batur dan Domba Garut
Abstrak: Batur sheep and garut sheep have good potential of their wool utilization because both types of sheep are crossbreed between local sheep with merino sheep. Research about wool quality of local sheep is still very limited. Information about growth rate and quality of wool would be useful as a reference for the utilization and processing of wool. Parameters observed in this research consist of growth rate, staple length, fibre diametre, staple strength, and staple elongation. Wool sample taken from midside body of sheep. This experiment was conducted on a sheep farm in Garut and Banjarnegara and Physical Evaluation Laboratory, Higher School of Textille Technology Bandung. Data were analyzed using T-Test method with 2 independent samples with five replicates of each samples and the data then was processed using Minitab 16. The analysis showed significant difference in the parameters of length, diameter and fibre growth rate. Conversely, breed factor had no significantly differences to staple strength and staple elongation. Batur sheep has a characteristic and wool’s quality better than garut sheep, so that batur sheep has a more chance to develop as a wools producer
Keyword: wool quality, growth rate, garut sheep, batur sheep

Judul: Karakteristik Fisik Wol Domba Batur dan Domba Garut
Abstrak: Batur sheep produce medium wool, while garut sheep produce coarse wool. Knowledge about wool physical characteristics of both breeds are important due to the potential background for utilization to certain product. The aims of this research were to indentify and compare wool physical characteristics of batur sheep (WB) and garut sheep (WG). The variables observed including bundle tenacity, elongation, flammability, sound and thermal insulation properties. The comparison data of sound and thermal insulation ability between board (P), board + batur sheep wool (PWB), and board + garut sheep wool (PWG) were designed by Completely randomized design (CRD) and analyzed by Analysis of Variance (ANOVA) as well as the comparison data of flammability between WB, WG, P and nylon. The other data were analyzed by T-test. The result showed that WB and WG had no significant difference on their tenacity, resilient, and flammability (P > 0.05). PWB and PWG had better sound and thermal insulation ability more than P. Wol had flammability better than P and nylon
Keyword: wool, physical characteristic, garut sheep, batur sheep

Judul: Potensi metode penambahan standar titik-H untuk penentuan simultan kromium (III) dan kromium (VI):
Abstrak: Metode penambahan standar titik-H (HPSAM) telah dicoba untuk penentuan simultan Cr(III) dan Cr(VI). Campuran pereaksi kromogenik dari 2- hidroksibenzaldiminoglisina (HBIG) dan kuersetin dalam larutan miselar setiltrimetilamonium bromida digunakan untuk penentuan simultan kedua ion di atas. Metode yang digunakan didasarkan pada perbedaan absorbans dari kompleks yang terbentuk yaitu Cr(VI)-kuersetin pada dua panjang gelombang yang berbeda (558 dan 577 nm) dengan absorbans untuk Cr(III)-2-hidroksibenzaldiminoglisina konstan. Hasil dari menggunakan HPSAM pada contoh sintetik menunjukkan bahwa Cr(III) dan Cr(VI) tidak dapat ditentukan secara simultan dengan kondisi kompromi analisis yang telah ditentukan. Hal ini karena Cr(III) yang tidak terdeteksi dan persentase simpangan baku relatif Cr(VI) lebih besar dari 5%. Walaupun demikian HPSAM masih memiliki potensi untuk penentuan simultan Cr(III) dan Cr(VI) karena pada beberapa ulangan pengukuran yang dicoba, konsentrasi Cr(VI) yang ditemukan mendekati konsentrasi yang dibuat secara teoretis.
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