AATCC 185-2006(2007) 螯合剂过氧化氢漂白浴中螯合剂的百分含量 ...(英文).pdf

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AATCC Test Method 185-2006
Chelating Agents: Percent Content in Hydrogen Peroxide
Bleach Baths; Copper PAN Indicator Method
Developed in 1998 by AATCC Commit- materials in this test method. Manufac
5.1.3 Cyanide ions, ammonia, and
tee RA9O reaffirmed 1999, 2000, 2006. turers MUST be consulted for specif
most amines will form molecular cor
detalls such as material safety data sheets pounds with copper ions without affect-
and other manufacturers recommenda- ing the PAN indicator. resulting in false
1. Purpose and Scope
tions. All OSHA standards and rules positive results
must also be consulted and followe
5.2 The percent chelating agent in the
1 This test method measures the
4.1 Good laboratory practices should
bleach bath will not be affected by
chelating agent content in a hydrogen be ollowed. Wear safety glasses in all changes in the active ingredient content
peroxide bleach solution
laboratory areas
of the chelating agent or product
1.2 The method is designed to permit
4.2 Al chemicals should be handled
5.2.1 AATCC Method 168, Chelating
outine or periodic titration of the perox-
with care. Many of the chemicals used in Agents: Active Ingredient Content of
ide saturator section of a plant prepara
Lon range. or othe」
peroxide
this procedure are corrosive or a strong Polyaminopolycarboxylic Acids, should be
Irritant
conducted on each new lot of the chelatin
bleach solutions. Lo determine the con
centration of chelating agent prese
4.3 In preparing, dispensing and han-agent or product to determine if the active
1.3 The method is restricted to chelal
ling sulfuric acid (98%), glacial acetic ingredient content has changed
ing agents based on ethylenediaminetel
acid and sodium hydroxide use chemical
5.2.2 The copper chelation value
raacetic acid (EDTA), N-hydroxyethyl- goggles, or face shield, impervious (CUCV) determined in this method is a
ethylenediaminetriacetic acid (HEDTA
gloves and an impervious apron. Concen-direct indication of the active ingredient
and diethylenetriaminepentaacetic acid
trated acids should be handled only in an content of the chelating agent or product
TPA). This includes any proprietary
adequately ventilated hood. CAUTION: and can be monitored or this purpose
Always add acid to water
products (referred to herein aspro
4.4 Methanol is a flammable liquid and
containing possible multiple ingredients,
should be stored in the laboratory only in
6. Reagents
one or more of which may be chelating
small containers away from heat, op
agents
6. 1 The reagents used in this method
fame and sp
should be ACS reagent grade quality
2. Principle
4.5 An eyewash/safety shower should
6.1.1 Acetic acid, glacial(CH, COOH)
be located nearby and a high efficienc
6.1.2 Copper sulfate pentahydrate
particulate respirator with organic vapor (Cuso, 5H,O)
produc in the hydrogen peroxide bleach cartridges and a full lace piece should be 6.1.3 Methanol(CH, OHD)
bath is determined in two steps: first. a readily available for emergency use
6.1.4 PAN, 1-(2-pyridylaz0)-2-naphthol
1g ag
4.6 Exposure to chemicals used in this
(CHI ON
product using a known concentration of
procedure m