The Following is DIRECT from Osha in
regards to “Compliancy Regulations”.



U.S. Department of Labor
Occupational Safety & Health Administration

OSHA Instruction STD 01-13-001 – STD 1-13.1 October 30, 1978 – Reduction
of Air Pressure below 30 psi for Cleaning Purposes

February 14, 1972


To: National and Field Offices

SUBJECT: Reduction of Air Pressure Below 30 psi for Cleaning Purposes

Attachment: Acceptable Methods for Complying with 41 CFR 50-204.8
and 29 CFR 1910.242(b)

  1. Purpose. To provide guidance and examples of what alternate
    systems will meet the requirements of this section, and to
    clarify its intent.
  2. Background. A number of inquiries have been received requesting
    a clarification of the meaning of 1910.242(b) also known as 41
    CFR 50-2048 under the Walsh-Healey Act.
  3. Interpretation. The phrase “reduce to less than 30 psi” means that
    the downstream pressure of the air at the nozzle (nozzle pressure)
    or opening of a gun, pipe, cleaning lance, etc., used for cleaning
    purposes will remain at a pressure level below 30 psi for all static
    conditions. The requirements for dynamic flow are such that in the case
    when dead ending occurs a static pressure at the main orifice shall not
    exceed 30 psi. This requirement is necessary in order to prevent a back
    pressure buildup in case the nozzle is obstructed or dead ended. See
    enclosure (1) for two acceptable methods of meeting this requirement.
    Also, there is no intent to restrict the diameter of the nozzle orifice or the
    volume (CFM) flowing from it.

    “Effective chip guarding” means any method or equipment which will prevent a
    chip or particle (of whatever size) from being blown into the eyes or unbroken
    skin of the operator or other workers. Effective chip guarding may be separate
    from the air nozzle as in the case where screens or barriers are used. The use
    of protective cone air nozzles are acceptable in general for protection of the
    operator but barriers, baffles or screens may be required to protect other workers
    if they are exposed to flying chips or particles.

  4. Action. Inquiries about subject section should be handled in accordance
    with this instruction.
  5. Effective Date. This instruction is effective immediately, and will remain
    in effect until canceled or superseded.

Director, of Program Operations

DISTRIBUTION: National Office Field

A/SEC. (3) Regional Administrators (6) Dep. A/Sec (2) Area/District Offices (3) Spec. Asst.
(1) Training Institute (1) Directors (3) RAO (2) SOL (1) Professional Staff (1) BLS (1)
Review Commission (6)

For Attachment see Printed Copy Acceptable Methods For Complying With 41 CFR
50-204.8 and 29 CFR 1910.242(b) Use of Compressed Air

There it is.


We can save you all the trouble of “getting compliant”.

Our pneumatic air guns are already
Osha Compliant.

And we are one of the few that also carry
the Osha Test Gage.

That’s a double win right there,
just for you.

It’s all here…

Osha Test Guge:


The “Osha Compliant” Air Guns:


As a “Thank You” for reading, at checkout use
coupon code:


For a 5% discount on your cart purchase.