<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">bichromate processes</topic></authority><related type="narrower"><topic>carbon process</topic></related><related type="narrower"><topic>gum bichromate process</topic></related><related type="narrower"><topic>Fresson</topic></related><related type="narrower"><topic>dusting-on process</topic></related><related type="narrower"><topic>oil processes</topic></related><related type="other"><topic>oil prints</topic></related><related type="broader"><topic>pigment processes</topic></related><variant type="other"><topic>bichromate process</topic></variant><variant type="other"><topic>bichromated pigment processes</topic></variant><variant type="other"><topic>dichromate processes</topic></variant> <note xml:lang="en"><![CDATA[ Processes for making photographic prints using a bichromate compound which, when exposed to light, causes its colloid binder to harden; unhardened areas are washed or abraded away. Pigments may be incorporated before exposure or during development. Though the expression dichromate is now preferred in chemistry, bichromate remains common usage in photography. ]]></note></mads>