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SEMI S21-1103 © SEMI 2003 12 13.4 Me mbers of any on-site respond ing organization (such as emergency response t eams (ERTs)) s hould be trained on the use of the emerge ncy response plan, and all other procedures for wh…

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SEMI S21-1103 © SEMI 2003 11
12.7.5 A proper facepiece-to-face seal should be
established each time the employee uses the respirator.
12.7.5.1 Respirator users should be capable of
performing a fit check, cleaning the respirator, and
distinguishing clean versus used respirators.
12.7.5.2 Respirators should be provided with a method
of identifying their assigned user and who performs
maintenance.
NOTE 38: Some jurisdictions require sealing of respirators in
bags or another method of keeping the respirator clean.
12.7.6 If an air-purifying respirator is worn, workers
need to be trained as to how often the canisters or
cartridges should be changed.
12.7.7 A full-face type mask with a wide view should
be used for a self-contained breathing apparatus or
airline respirator system.
12.7.8 Respirators should be inspected prior to every
use to ensure they are:
in good working condition,
pliable,
free from damage, and
not contaminated.
12.8 Head Protection
12.8.1 Hardhats that provide protection against impact
and penetration should be worn in areas that may
contain falling objects or bumping hazards.
12.8.2 A risk assessor should determine if head
protection must provide protection from electrical
shock in the situations.
12.9 Hearing Protection
12.9.1 Hearing protection is designed to protect ears
from sound pressure hazards. In locations where
workers can be exposed to excessive noise levels
(greater than 80 dBA) that administrative or
engineering controls cannot reduce, earplugs or muffs
should be considered.
12.9.2 High audio noise should be monitored. Where
potential exposure to hazardous levels of sound exists,
hazard warnings should be posted, and appropriate PPE
used.
NOTE 39: Protection may be required for impact noise that
some equipment (pumps) generate (deep thumping noises).
Consult a noise specialist if this situation arises.
13 Emergency Preparation and Managing
Abnormal Situations
13.1 All workers in a facility (whether employees or
temporary workers supplied under contract) should be
trained in recognizing and responding to abnormal
situations.
13.2 Suppliers should have their own procedures for
managing abnormal situations, that may be expected, in
association with the equipment the supplier
manufactures.
13.2.1 Supplier employers should develop an
emergency response plan for their own workers.
Emergency response procedures and the methods of
communication to be used in an emergency should be
tested to evaluate their effectiveness and communicated
to all supplier employees.
13.2.2 Supplier employers and facility operators should
coordinate information to ensure both supplier
employees and facility operators understand any
expected actions.
13.2.3 Facility operators should have their own
procedures for managing abnormal situations that may
be expected from problems within the facility or from
combinations of equipment conditions.
13.2.3.1 Such procedures should be based on hazard
analyses and risk assessments conducted under
reasonably foreseeable abnormal conditions.
13.2.4 Facility operators should make pertinent
information such as emergency contact methods and
phone numbers available.
13.2.5 Allowable or prohibited actions by supplier
personnel and the proper chain of command for
reporting emergencies should also be included.
13.2.6 Responders should be trained on the use of the
plan and their specific responsibilities during an
emergency.
13.2.7 All workers (both employees and outsiders)
should be trained in contacting the emergency team,
and safe evacuation of the area.
13.2.8 Workers who are not trained, should not be
allowed to perform emergency response actions for
which they have not had training.
13.3 Toxicity information (for materials provided by
either the supplier or the user) should be readily
available for communication to infirmaries, clinics,
hospitals or other treatment facilities or personnel that
may be requested to treat persons affected by abnormal
conditions at the facility.
SEMI S21-1103 © SEMI 2003 12
13.4 Members of any on-site responding organization
(such as emergency response teams (ERTs)) should be
trained on the use of the emergency response plan, and
all other procedures for which they are designated
responders.
13.4.1 Responders should not perform actions for
which they have not been trained.
13.4.2 If on-site responders are not provided, facility
operators should make provisions according to the
regulations for the location and should notify all
supplier employers about the extents and limits of such
response provisions.
NOTE 40: Some jurisdictions require trained on-site
responders at each facility. Other jurisdictions specify that
only local authorities (e.g., fire departments, hazardous
materials units, police) can respond to emergency situations.
Certain jurisdictions allow employers to choose whether they
train their employees to respond to emergencies or if they will
depend upon local authorities for emergency response. Each
employer should understand the requirements of each specific
jurisdiction in which they will perform work.
13.4.2.1 An example of an organization that offers
emergency medical training and certification is the Red
Cross.
SEMI S21-1103 © SEMI 2003 13
APPENDIX 1
CHEMICAL CATEGORIES AND ANTICIPATED HAZARDS BY
CATEGORY
NOTICE: The material in this appendix is an official part of SEMI S21.
Table A1-1 Chemical Category and Hazards
Description Hazard Examples
Compressed Gas High pressure cylinder gas
Potential for rapid, dangerous
release of contents
Argon, hydrogen, chlorine
Cryogen
Liquefied gas stored around –
200° C
Frostbite/freezing tissue Liquid oxygen, liquid nitrogen
Corrosives
Acids, bases, and some
oxidizers
Burns, irritation, visible
destruction or change to living
tissue
Hydrochloric acid, hydrogen
bromide, ammonium hydroxide
Solvents
A liquid used to dissolve or
clean other materials that can
produce flammable vapors
Fire, explosion Isopropyl alcohol, acetone
Flammable gases Can burn easily if ignited Fire, explosion Arsine, hydrogen
Pyrophoric gases
Gases which may ignite
spontaneously upon contact
with air
Fire, explosion Silane, phosphine
Poisons
Any substance that produces a
harmful effect when
introduced to the body
Serious illness or death Phosphine, diborane, arsine
Inert Gas
Non-corrosive, non-toxic and
non-flammable
Simple asphyxiant Nitrogen, argon
Oxidizers
React energetically with
reducing agents
Violent reactions when mixed
with other chemicals; can
enhance fire
Nitric acid, hydrogen peroxide,
nitrous oxide
Irritants
Corrosives, solvents, oxidizers
(effects depend on
concentration)
Local inflammatory response to
skin, eyes or respiratory tract
Hydrochloric acid, sodium hydroxide,
hydrogen peroxide, acetone
Sensitizers
Any substance that can illicit
an allergic reaction
Effects range from mild skin or
respiratory reactions to
anaphylactic shock and death
Uncured epoxies, ethylenediamine,
isocyanates