Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ASTM D4198-82(2011)
• Năm ban hành / Publication date: 2011
• Tình trạng / Status: W - Hết hiệu lực
• Tên tiếng Anh / Title in English: Standard Test Methods for Evaluating Absorbent Pads Used with Membrane Filters for Bacteriological Analysis and Growth (Withdrawn 2020)
• Chỉ số phân loại Quốc tế (ICS) / By field: 07.100.10 - Vi sinh học y tế
• Số trang / Page: 3

Phạm vi áp dụng / Scope of standard

1.1 These test methods cover the determination of the nutrient-holding capacity and the toxic or nutritive effect on bacterial growth of organisms retained on a membrane filter, when the absorbent pad being tested is used as a nutrient reservoir and medium supply source for the retained bacteria.

1.2 The tests described are conducted on 47-mm diameter disks, although other size disks may be employed for bacterial culture techniques.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.