GLOVES GIVING PROTECTION FROM CHEMICALS AND MICRO-ORGANISMS
This standard specifies the requirements for gloves to protect the user against chemicals and micro-organisms and defines terms to be used.
Movement of a chemical or micro-organism through porous materials, seams, pinholes or other imperfections in a protective glove material on a non-molecular level.
The time elapsed between the initial application of the chemical to the outside of a protective glove material and its subsequent presence on the inside as measured in EN 374 part 3 and defined as the time when the permeation rate equates to 1 microgram per minute per square cm.
The minimum liquid proof portion of the glove must be equal to or greater than the minimum length of the glove as detailed in EN 420
Gloves must not leak when subjected to an air or water leak test.
Chemicals are tested and classified for breakthrough time on a scale of 0
Warning: Chemical information does not necessarily indicate workplace duration.
|E||Carbon disulphide||75-15-0||Sulphur containing
|H||Tetrahydrofuran||109-99-9||Heterocyclic and Ether
|K||Sodium Hydroxide 40%||1310-73-2||Inorganic Base|
|L||Sulphuric Acid 96%||7664-
|Inorganic Mineral Acid|
The Chemical Resistant glove pictogram must be accompanied by a three-digit code referring to the code letters of three chemicals (from a list of 12 standard defined chemicals), for which a breakthrough time of at least 30 minutes is achieved.
A Waterproof/Low Chemical Resistant pictogram is reserved for cases where gloves did not achieve a breakthrough time of 30 minutes or greater for at least three defined chemicals, but do comply with penetration
A glove shall be considered micro-organism resistant if it conforms to at least level 2 in the Penetration test of EN 374 shown in the table in the column opposite.