Tiêu chuẩn quốc tế

Số hiệu

Standard Number

ASTM D2379-09(2017)
Năm ban hành 2017

Publication date

Tình trạng A - Còn hiệu lực

Status

Tên tiếng Anh

Title in English

Standard Test Method for Acidity of Formaldehyde Solutions
Chỉ số phân loại Quốc tế (ICS)

By field

71.080 - Hóa chất hữu cơ
71.080.80 - Andehyt và xeton
Số trang

Page

2
Giá:

Price

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Phạm vi áp dụng

Scope of standard

1.1 This test method covers the determination of the acidity of commercially available formaldehyde solutions. 1.2 For purposes of determining conformance of an observed or a calculated value using this test method to relevant specifications, test result(s) shall be rounded off “to the nearest unit” in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 For hazard information and guidance, see the supplier's Safety Data Sheet. 1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific hazard statements are given in Section 7. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.