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Last Updated
03/31/2019
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Detailed entries for one subject from the INDEX TO HOW TO DO IT INFORMATION. |
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PHOTOCHEMISTRY STORAGE xx PHOTOCHEMISTRY Tip on using marbles to help eliminate air in partially-full photochemistry storage bottles. Tip on labeling chemistry bottles using tags cut from plastic containers and attached with string. Tip on using Styrofoam packing peanuts to reduce oxidation in partially-full bottles. Tip on using a "Foodsaver" vacuum-sealing device to preserve photochemicals. Tip on storing photochemicals in used wine bags. Tip on using a hand-operated vacuum pump and rubber corks (originally intended to preserve open bottles of wine) to prolongue the life of photo chemicals. Darkroom 101. New column that offers practical darkroom tips for the experienced beginner. Lesson 1. Tips on getting the greatest life from your b&w chemistry. Tips on lengthening the shelflife of sensitive chemicals. How to test to determine if old chemicals are still good. Tips on freezing photo chemicals to prolongue their shelflife. Tips on storing dry photo chemicals and mixing and using dry chemicals which have absorbed moisture (caked). Includes tips on avoiding caking. The effect of moisture on dry chemicals, and storage tips to prevent them from absorbing moisture. Tips on diluting and storing Kodak C-41 and EP-2 color chemistry. Tips on extending chemical life in automated print processors. Tips on saving and reusing b&w paper developer and monitoring developer oxidation. Tips on improving the utilization and storage of short-lived color photochemistry. Guidelines for long-term shelf life of raw photographic chemicals (alkaline compounds, developing agents, fixing agents, addenda). Split stock mixing. A method to increase the shelf life of black-and-white film developers. Tip: Purchase 1 oz. nose drop dispensers from a druggist for use in holding premeasured amounts of color chemical concentrates. How to divide a 1-gallon E-6 processing kit into eight individual 1-pint kits. 72 bottles with the correct capacities should cost you about $25. Subdividing a 1-gallon kit can save you 50% in the cost of E-6 chemicals. Tip: Use fishing line swivels to keep bottle caps attached to photo chemical bottles. Tip: Use brown quart-size beer bottles for storing photo chemicals. Put the lid on developer oxidation. How to choose bottles and displace air in order to prevent oxidation of developer stored for long periods. How to "vacuum pack" your developer in heavy-duty glass bottles to avoid oxidation and keep developer fresh well beyond its normal storage life. Tip: Add a drain hole to a large photo tray to facilitate returning chemicals to bottles. Tip: Suggested bottle for use with photo chemicals. Tip: How to clean chemical deposits from photographic solution bottles by using sand and water. Tip: Use plastic garbage bags inside a one-gallon plastic jug. This trick can extend chemical shelf life by 50% or more because it reduces the amount of air reaching the chemicals. Tip: Don't use glass marbles to raise liquid levels when storing highly alkaline photo solutions. Tip on storage of Ektaprint chemicals to get long life. Tip: Use nitrogen gas to protect partially-filled bottles of photo chemicals. Tip: Use 1-gallon containers of distilled water to mix and store photo chemicals. Tip on filling and sealing brown, flint-glass photo chemical storage bottles to retard spoilage. Tip: Kitchen plastic wrap will keep photo solutions fresh in a tray just as long as storing in a full, stoppered bottle. How to evacuate air from collapsible plastic containers (cubitainers) used to store photo chemicals. Tip on pouring from a 1-gallon jug without splashing. Tip: Protect your color developer with the gas in "Dust Away". Tip on displacing air and sealing bottles so that photo chemicals will keep a long time. Ozone update. The need for safe substitutes for canned chlorofluorocarbon (CFC) gasses in the photo darkroom. Tips on alternatives and substitutes. Tip on storing pre-mixed chemicals longer by placing in small glass jars and keeping in the dark. Tip on using laundry detergent bottles to store photo chemicals. Tip on storing Technidol liquid developer for use with Kodak Technical Pan film. Tip on using "Saran Wrap" to prolong the life of chemistry in trays. Tip on using 1-liter wine boxes to store photo chemicals. Tip on source of brown glass bottles for storing photo chemicals. Tip on using a gasoline siphon to remove chemicals from large processing trays. Tips on mixing and storage of photo chemicals. Suggestions for bottles in which to store chemicals, plus chemical handling tips to improve performance. Preserve expensive color chemicals by freezing. Tips on keeping oxygen out of developers to lengthen life. Tips on mixing and storing color processing kits. Tip: Attach non-skid strips to glass bottles and film tanks to make it easier (and safer) to handle them with wet hands. Tip: Use wine bottles with corks to store photo chemicals. Tip: Freeze mixed film developer to keep it fresh. Microwave to thaw before use. Advice on the shelf life of both liquid and dry photochemicals. Shelf life of RA-4 and most other processing chemicals. Includes storage tips. Tips on shelf-life and storage of RA-4 chemicals. Tip: Intravenous-feeding-solution bottles make good storage for photo chemicals. Tip: Use Grolsch beer bottles to store photo chemicals. Tip: How to clean laundry detergent bottles for use as photo chemical storage containers. Tip on best way to thoroughly rinse those ribbed, collapsible chemical storage bottles. Tip: Use glass marbles to raise level of developer in storage bottles to drive out the air. Tip: Extend tray life of photo chemicals by covering with plastic wrap. Make your own collapsible darkroom dispensers from milk cartons, vinyl tubing, freezer bags, and clamps. Tip: Inflate a balloon inside a photo chemical storage bottle to displace air and seal the bottle. Techniques for storing photographic chemicals to exploit their maximum life. Tips on where to get free or inexpensive colored bottles in various sizes for use in storing photo chemicals. Tip: An inexpensive source for accordion-type collapsible storage containers. Using a homemade siphon to return photochemicals from a tray to a storage bottle without spilling any. Plastic jars, with simple homemade valves, for storing photo chemicals. Extend the life of your bulk liquid photo chemicals by doing vacuum re-bottling into soft drink bottles with screw-on tops. | |||||||||
Copyright © by Norman Lathrop Enterprises. All Rights Reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means (electronic, mechanical, print photocopying, recording or otherwise) without the prior expressed permission of Norman Lathrop Enterprises, except as permitted by law. |
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