CERTIFICATIONS

I, Ulf Jonsson, certify that:
1. I have reviewed this report on Form 20-F of Biacore International AB (publ);
2. Based on my knowledge, this annual report does not contain any untrue
   statement of a material fact or omit to state a material fact necessary to
   make the statements made, in light of the circumstances under which such
   statements were made, not misleading with respect to the period covered by
   this report;
3. Based on my knowledge, the financial statements, and other financial
   information included in this report, fairly present in all material respects
   the financial condition, results of operations and cash flows of the
   company as of, and for, the periods presented in this report;
4. The company's other certifying officers and I are responsible for
   establishing and maintaining disclosure controls and procedures (as defined
   in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the company and have:
   (a) Designed such disclosure controls and procedures, or caused such
       disclosure controls and procedures to be designed under our supervision,
       to ensure that material information relating to the company, including
       its consolidated subsidiaries, is made known to us by others within those
       entities, particularly during the period in which this report is being
       prepared;
   (b) Evaluated the effectiveness of the company's disclosure controls and
       procedures and presented in this report our conclusions about the
       effectiveness of the disclosure controls and procedures, as of the end of
       the period covered by this report based on such evaluation; and
   (c) Disclosed in this report any change in the company's internal control
       over financial reporting that occurred during the period covered by the
       annual report that has materially affected, or is reasonably likely to
       materially affect, the company's internal control over financial
       reporting; and
5. The company's other certifying officers and I have disclosed, based on our
   most recent evaluation of internal control over financial reporting, to the
   company's auditors and the audit committee of the company's board of
   directors (or persons performing the equivalent functions):
   (a) All significant deficiencies and material weaknesses in the design or
       operation of internal control over financial reporting which are
       reasonably likely to adversely affect the company's ability to record,
       process, summarize and report financial information; and
   (b) Any fraud, whether or not material, that involves management or other
       employees who have a significant role in the company's internal control
       over financial reporting.

Date   June 21, 2004
/s/    Ulf Jonsson
Name   Ulf Jonsson
Title  President and Chief Executive Officer


I, Lars-Olov Forslund, certify that:
1. I have reviewed this report on Form 20-F of Biacore International AB (publ);
2. Based on my knowledge, this annual report does not contain any untrue
   statement of a material fact or omit to state a material fact necessary to
   make the statements made, in light of the circumstances under which such
   statements were made, not misleading with respect to the period covered by
   this report;
3. Based on my knowledge, the financial statements, and other financial
   information included in this report, fairly present in all material respects
   the financial condition, results of operations and cash flows of the
   company as of, and for, the periods presented in this report;
4. The company's other certifying officers and I are responsible for
   establishing and maintaining disclosure controls and procedures (as defined
   in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the company and have:
   (a) Designed such disclosure controls and procedures, or caused such
       disclosure controls and procedures to be designed under our supervision,
       to ensure that material information relating to the company, including
       its consolidated subsidiaries, is made known to us by others within those
       entities, particularly during the period in which this report is being
       prepared;
   (b) Evaluated the effectiveness of the company's disclosure controls and
       procedures and presented in this report our conclusions about the
       effectiveness of the disclosure controls and procedures, as of the end of
       the period covered by this report based on such evaluation; and
   (c) Disclosed in this report any change in the company's internal control
       over financial reporting that occurred during the period covered by the
       annual report that has materially affected, or is reasonably likely to
       materially affect, the company's internal control over financial
       reporting; and
5. The company's other certifying officers and I have disclosed, based on our
   most recent evaluation of internal control over financial reporting, to the
   company's auditors and the audit committee of the company's board of
   directors (or persons performing the equivalent functions):
   (a) All significant deficiencies and material weaknesses in the design or
       operation of internal control over financial reporting which are
       reasonably likely to adversely affect the company's ability to record,
       process, summarize and report financial information; and
   (b) Any fraud, whether or not material, that involves management or other
       employees who have a significant role in the company's internal control
       over financial reporting.

Date   June 21, 2004
/s/    Lars-Olov Forslund
Name   Lars-Olov Forslund
Title  Executive Vice President and Chief Financial Officer