Nylon bags

Blummel M, Orskov ER. Comparison of gas production and nylon bag degradability of roughages in predicting feed intake in cattle. Animal Feed Science and Technology. 1993 40 109-119. 

Samples were taken from MSW in district Hai Ba Trung, Hanoi. Waste sources are mainly from households and small street restaurants without separation at source. In this district, waste composition contains high percentage of biowaste which accounts for 55-69%, and plastic and nylon bag are 4-5% and 1.5-2%, respectively [11, 12]. 

Figure 12 presented sample composition of Rl —> R3 for the three barrels with four high-calorific fractions biowaste, nylon bag (plastics), paper, and textile in different ratio. 

For these three barrels, percentage of paper and textile was kept equally, while shares of nylon bag and biowaste were varied. Details of input material are shown in Table 6. 

R1 has the lowest gross heating value of 16.53 MJ/kg which resulted from the low percentage of nylon bag and the high biowaste content from input material. R2 contained the highest percentage of nylon bag thereafter, it received the highest... 

Mixed bed, cation, and anion exchange resins (17 g) in a nylon bag are prepared. These are placed 6-8 cm deep in 300-g soil pots. After the assay period (5 months), bags are removed and extracted with IN KC1 (adapted from Reference 23). 

Techniques which may be used for coUection of trace explosives residues at a scene include swabbing with either dry or solvent wetted swabs, sweeping up dust and smaU particles into suitable receptacles, vacuum collection, and the use of a contact heater to coUect semi-volatile materials. If a bomb crater can be located, then samples of the soil from the crater should be sealed in nylon bags for later laboratory analysis. 

Effect of predigestion factors on the apparent digestibility of protein for swine determined by the mobile nylon bag technique. Journal of Animal Science 66 (8), 1963-1968. 

Machelboeuf, D., Poncet, C., Jestin, M. and Martin-Rosset, W. (1996) Use of a mobile nylon bag technique with caecum fistu-lated horses as an alternative method for estimating precaecal and total tract nitrogen digestibility. Proceedings of the 47th Annual Meeting of the European Association for Animal Production, Lillehammer, Norway, p. 269. 

A related system is that of the lipid-bilayer corked capsule membranes which are formed from ultrathin (about 1 pm thick), spongy, 2.0- to 2.5-mm-diameter, more-or-less spherical nylon bags in which multiple bilayers are immobilized (Fig. 43) [343-345]. They were considered to combine the advantages of mechanical and chemical stabilities of polymeric membranes with the controllable permeabilities of surfactant vesicles. Polymerization of the bilayers, in situ,... 

Tubing and connectors are preassembled as described below, stored sterile in nylon bags cut from Portex nylon sheeting, and sealed with autoclave tape. 

Cover the output end with two layers of aluminum foil (no plug), and autoclave the filter in a nylon bag. Separate the air vent valve screw from the unit to facilitate the circulation of steam around the filter. 

Prepare one or more adapter tubes by cutting 30 cm Marprene tubing, and attaching a double female connector 892 00 to one end and a male adapter MTLI 250 to the other. Sterilize each in a nylon bag... 

EBMUD, Oakland, CA Combined chlorine Sodium sulfite Sodium thiosulfate Ascorbic acid Tablets from 2 companies Crystals Powder Varied from 1 to 36 tablets 1 lb in nylon bags placed on the flow path 1.2 8.0 Surface water 100-500 100 100... 

In these tests, 1 lb of the dry chemical in a nylon bag was placed across a flow of 100 gpm. Both of the chemicals decreased the total residual chlorine to below 0.1 mg/L. However, in both the cases, the chemical dissolved rapidly and escaped the bag. Excessive dissolution of ascorbic acid decreased the water pH from 8.9 to 5.07. Dissolution of sodium thiosulfate did not significantly affect the pH or DO. 

It was found that the 31P f, s measured for particles constrained by an open mesh nylon bag and those of the same size but unconstrained in the SINNMR experiment, under otherwise identical sonication conditions, were different. The former was found to be 2.5 s while the latter was 0.5 s. As the only difference between the two experimental configurations related to the freedom of particle motion, the difference between the two 7] values was shown to be due to rotational motion of the particles in the SINNMR experiment, with a correlation time of ca. 10-7 s. 

After a certain time interval the nylon bags were removed and placed in a fresh flask of water. This was repeated until no further release of copper was observed. 

The nylon bags used, while preventing larval escape, allowed 70% of full sunlight to pass through Thus, reduction in photosynthesis due to bagging was not expected ... 

The products were also tested by in-vivo techniques. For example, evaluation of the rumen stability was carried out using samples placed in porous nylon bags and incubated in the rumen and in the intestine of cows. In other experiments, the products were given orally to the animals and the levels of amino-acids in the GI tract and in the blood plasma were measured. The impact of the protected amino-acid intake on the quality of the milk production was also studied in collaboration with institutes and universities in different countries. The increase of protein production is significant (0.9 g to 1.7 g / liter / animal) and economically interesting for dairy farmers. The higher levels of protein in milk also improve cheese manufacturing. 

The relatively high dry matter digestion coefficients, Table V, emphasize the fact that tests rations were essentially concentrate except for the inclusions of oyster shell and sawdust. The conventional digestibility trial data and the in vitro data rank the rations in a similar order. No adequate explanation can be given for the low coefficient for the basal by the nylon bag technique. Although the small sample in vivo and the... 

Table VII. Wood Waste Digestibility by Nylon Bag Technique...

Cellulose digestibility declined with the additions of sawdust, Table VI. This was expected since extensive nylon bag digestibility data for various waste wood materials including oak sawdust revealed apparent dry matter digestion coefficients below 20, usually less than 5, Table VII. 

Nylon bags made of two different meshes 51 and 541 qm in size, and with dimensions of 21 X 7 cm (for the HSB) and 10 X 5 cm (for the TMB) were manufactured by Sintab (Malmd, Sweden). The nylon bags are very hydrophilic, biologically inert, non-hygroscopic and low extractable show negligible absorption and absorption of filtrate and have exceptionally low tare weights, low trace-element levels, excellent chemical resistance and thermal stability. 

Soil samples were collected from twenty different locations in three Local Government Areas in Enugu State. Soil samples were collected in duphcates at a dept of 15-20cm and transferred into a pre-washed polyethylene nylon bag to avoid contamination. Soil samples were dried at 105[Pg.41]

Probe 1 Nylon Bagging Bleeder Cloth Release Film... 

The values for true intestinal digestibility (TId) of rumen undegradable protein (RUP) were calculated when possible using the results obtained by the technique of mobile nylon bags in the intestine (UMR INRA-ENSAR). In order to increase the diversity of the feed materials, these data were completed by measurements performed using a similar methodology by around 15 other laboratories renowned for their reliability. To be included, each laboratory had to have tested at least 10 feed materials. 

Macheboeuf D., Marangi M., Poncet, C., Martin-RossetW., 1995. Study of nitrogen digestion from different hays by the mobile nylon bag technique in horses.Ann. Zootech., 44 Suppl. 219 (abstract). 

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