UNITED STATES
                         SECURITIES AND EXCHANGE COMMISSION
                               Washington, D.C. 20594


                                    SCHEDULE 13G

                      Under the Securities Exchange Act of 1934


                                 (Amendment No. 1)*



                          Air Products and Chemicals, Inc.

                                  (Name of Issuer)

                                    Common Stock

                           (Title of Class of Securities)

                                     009158106

                                   (CUSIP Number)


     Check the following box if a fee is being paid with this statement [ ]. (A
     fee is not required only if the filing person: (1) has a previous statement
     on file reporting beneficial ownership of more than five percent of the
     class of securities described in Item 1: and (2) has filed no amendment
     subsequent thereto reporting beneficial ownership of five percent or less
     of such class.) (See Rule 13d-7).

     *The remainder of this cover page shall be filled out for a reporting
     person's initial filing on this form with respect to the subject class of
     securities, and for any subsequent amendment containing information which
     would alter the disclosures provided in a prior cover page.

     The information required in the remainder of this cover page shall not be
     deemed to be "filed" for the purpose of Section 18 of the Securities
     Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of
     that section of the Act but shall be subject to all other provisions of the
     Act (however, see the Notes).

















     

1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Capital Research and Management Company 95-1411037 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) (b) 3 SEC USE ONLY 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware 5 SOLE VOTING POWER NONE 6 SHARED VOTING POWER NUMBER OF SHARES NONE BENEFICIALL Y OWNED BY 7 SOLE DISPOSITIVE POWER EACH REPORTING 7,990,000 PERSON WITH 8 SHARED DISPOSITIVE POWER NONE 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 7,990,000 Beneficial ownership disclaimed pursuant to Rule 13d-4 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 3.5% 12 TYPE OF REPORTING PERSON* IA *SEE INSTRUCTION BEFORE FILLING OUT

SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 Schedule 13G Under the Securities Exchange Act of 1934 Amendment No. 1 Item 1(a) Name of Issuer: Air Products and Chemicals, Inc. Item 1(b) Address of Issuer's Principal Executive Offices: 7201 Hamilton Boulevard Allentown, PA 18195-1501 Item 2(a) Name of Person(s) Filing: Capital Research and Management Company Item 2(b) Address of Principal Business Office: 333 South Hope Street Los Angeles, CA 90071 Item 2(c) Citizenship: N/A Item 2(d) Title of Class of Securities: Common Stock Item 2(e) CUSIP Number: 009158106 Item 3 The person(s) filing is(are): (e) [X] Investment Adviser registered under Section 203 of the Investment Advisers Act of 1940. Item 4 Ownership Capital Research and Management Company, an investment adviser registered under Section 203 of the Investment Advisers Act of 1940 is deemed to be the beneficial owner of 7,990,000 shares or 3.5% of the 229,305,000 shares of Common Stock believed to be outstanding as a result of acting as investment adviser to various investment companies registered under Section 8 of the Investment Company Act of 1940. Item 5 Ownership of 5% or Less of a Class: [X] Item 6 Ownership of More than 5% on Behalf of Another Person: N/A Item 7 Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company: N/A Item 8 Identification and Classification of Members of the Group: N/A Item 9 Notice of Dissolution of the Group: N/A Item 10 Certification CUSIP: 009158106 Page 3 of 4 By signing below, I certify that, to the best of my knowledge and belief, the securities referred to above were acquired in the ordinary course of business and were not acquired for the purpose of and do not have the effect of changing or influencing the control of the issuer of such securities and were not acquired in connection with or as a participant in any transaction having such purpose or effect. Signature After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Date: February 10, 2000 (For the period ended December 31, 1999) Signature: *Paul G. Haaga, Jr. Name/Title: Paul G. Haaga, Jr., Executive Vice President Capital Research and Management Company *By James P. Ryan Attorney-in-fact Signed pursuant to a Power of Attorney dated January 18, 2000 included as an Exhibit to Schedule 13G filed with the Securities and Exchange Commission by Capital Research and Management Company on February 10, 2000 with respect to 3COM Corporation