SRM 194a Ammonium Dihydrogen Phosphate

SRM 194a Ammonium Dihydrogen Phosphate - This Standard Reference Material (SRM) is a highly purified and homogeneous lot of crystalline ammonium dihydrogen phosphate (NH4H2PO4). It is intended primarily for use as a working standard in the calibration and standardization of procedures employed in the fertilizer industry for the determination of ammoniacal nitrogen and phosphorus. A unit of SRM 194a consists of one bottle containing 90 g of crystalline ammonium dihydrogen phosphate. This data is public in the Certificate of Analysis for this material.

Data and Resources

This dataset has no data

Field Value
accessLevel public
accrualPeriodicity irregular
bureauCode {006:55}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/data.json
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier 4765EE7CC5A2A396E0531A57068160031639
landingPage https://www-s.nist.gov/srmors/view_detail.cfm?srm=194A
language {en}
license https://www.nist.gov/open/license
modified 2016-09-06 00:00:00
programCode {006:052}
publisher National Institute of Standards and Technology
resource-type Dataset
source_datajson_identifier true
source_hash 45a9b2e6ab9ebdc3ca24be7a1c8e5664df03e799
source_schema_version 1.1
theme {"Standards:Reference materials"}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • ammonium
  • ckan
  • environment-and-climate
  • fertilizer
  • geo
  • geoss
  • national
  • north-america
  • phosphate
  • srm
  • standard-reference-material
  • united-states
isopen False
license_id other-license-specified
license_title other-license-specified
maintainer Steven J. Choquette
maintainer_email srms@nist.gov
metadata_created 2025-11-21T09:26:31.714041
metadata_modified 2025-11-21T09:26:31.714046
notes SRM 194a Ammonium Dihydrogen Phosphate - This Standard Reference Material (SRM) is a highly purified and homogeneous lot of crystalline ammonium dihydrogen phosphate (NH4H2PO4). It is intended primarily for use as a working standard in the calibration and standardization of procedures employed in the fertilizer industry for the determination of ammoniacal nitrogen and phosphorus. A unit of SRM 194a consists of one bottle containing 90 g of crystalline ammonium dihydrogen phosphate. This data is public in the Certificate of Analysis for this material.
num_resources 0
num_tags 14
title SRM 194a Ammonium Dihydrogen Phosphate